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Added skeleton code
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221
a6_include.py
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221
a6_include.py
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# Course: CS261 - Data Structures
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# Assignment: 6
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# Description: Provided data structures necessary to complete the assignment.
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# Please look through this file carefully to see what methods
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# are available and how they're implemented.
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# Don't modify the contents of this file.
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# -------------- Used by both HashMaps (SC & OA) -------------- #
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class DynamicArrayException(Exception):
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pass
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class DynamicArray:
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"""
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Class implementing a Dynamic Array
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Supported methods are:
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append, pop, swap, get_at_index, set_at_index, length
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"""
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def __init__(self, arr=None) -> None:
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"""Initialize new dynamic array using a list."""
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self._data = arr.copy() if arr else []
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def __iter__(self):
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"""
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Disable iterator capability for DynamicArray class
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This means loops and aggregate functions like
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those shown below won't work:
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da = DynamicArray()
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for value in da: # will not work
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min(da) # will not work
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max(da) # will not work
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sort(da) # will not work
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"""
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return None
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def __str__(self) -> str:
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"""Override string method to provide more readable output."""
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return str(self._data)
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def append(self, value: object) -> None:
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"""Add new element at the end of the array."""
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self._data.append(value)
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def pop(self):
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"""Remove element from end of the array and return it."""
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return self._data.pop()
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def swap(self, i: int, j: int) -> None:
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"""Swap two elements in array given their indices."""
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self._data[i], self._data[j] = self._data[j], self._data[i]
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def get_at_index(self, index: int):
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"""Return value of element at a given index."""
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if index < 0 or index >= self.length():
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raise DynamicArrayException
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return self._data[index]
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def __getitem__(self, index: int):
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"""Return value of element at a given index using [] syntax."""
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return self.get_at_index(index)
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def set_at_index(self, index: int, value: object) -> None:
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"""Set value of element at a given index."""
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if index < 0 or index >= self.length():
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raise DynamicArrayException
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self._data[index] = value
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def __setitem__(self, index: int, value: object) -> None:
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"""Set value of element at a given index using [] syntax."""
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self.set_at_index(index, value)
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def length(self) -> int:
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"""Return length of array."""
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return len(self._data)
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def hash_function_1(key: str) -> int:
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"""Sample Hash function #1 to be used with HashMap implementation"""
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hash = 0
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for letter in key:
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hash += ord(letter)
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return hash
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def hash_function_2(key: str) -> int:
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"""Sample Hash function #2 to be used with HashMap implementation"""
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hash, index = 0, 0
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index = 0
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for letter in key:
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hash += (index + 1) * ord(letter)
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index += 1
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return hash
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# --------- For use in Separate Chaining (SC) HashMap --------- #
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class SLNode:
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"""
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Singly Linked List node for use in a hash map
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"""
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def __init__(self, key: str, value: object, next: "SLNode" = None) -> None:
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"""Initialize node given a key and value."""
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self.key = key
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self.value = value
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self.next = next
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def __str__(self) -> str:
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"""Override string method to provide more readable output."""
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return '(' + str(self.key) + ': ' + str(self.value) + ')'
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class LinkedListIterator:
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"""
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Separate iterator class for LinkedList
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"""
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def __init__(self, current_node: SLNode) -> None:
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"""Initialize the iterator with a node."""
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self._node = current_node
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def __iter__(self) -> "LinkedListIterator":
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"""Return the iterator."""
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return self
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def __next__(self) -> SLNode:
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"""Obtain next node and advance iterator."""
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if not self._node:
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raise StopIteration
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current_node = self._node
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self._node = self._node.next
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return current_node
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class LinkedList:
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"""
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Class implementing a Singly Linked List
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Supported methods are: insert, remove, contains, length, iterator
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"""
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def __init__(self) -> None:
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"""
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Initialize new linked list;
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doesn't use a sentinel and keeps track of its size in a variable.
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"""
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self._head = None
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self._size = 0
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def __str__(self) -> str:
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"""Override string method to provide more readable output."""
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if not self._head:
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return "SLL []"
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content = str(self._head)
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node = self._head.next
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while node:
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content += ' -> ' + str(node)
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node = node.next
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return 'SLL [' + content + ']'
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def __iter__(self) -> LinkedListIterator:
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"""Return an iterator for the list, starting at the head."""
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return LinkedListIterator(self._head)
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def insert(self, key: str, value: object) -> None:
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"""Insert new node at front of the list."""
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self._head = SLNode(key, value, self._head)
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self._size += 1
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def remove(self, key: str) -> bool:
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"""
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Remove first node with matching key.
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Return True if removal was successful, False otherwise.
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"""
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previous, node = None, self._head
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while node:
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if node.key == key:
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if previous:
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previous.next = node.next
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else:
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self._head = node.next
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self._size -= 1
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return True
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previous, node = node, node.next
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return False
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def contains(self, key: str) -> SLNode:
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"""Return node with matching key, or None if no match"""
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node = self._head
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while node:
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if node.key == key:
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return node
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node = node.next
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return node
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def length(self) -> int:
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"""Return the length of the list."""
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return self._size
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# ---------- For use in Open Addressing (OA) HashMap ---------- #
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class HashEntry:
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def __init__(self, key: str, value: object) -> None:
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"""Initialize an entry for use in a hash map."""
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self.key = key
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self.value = value
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self.is_tombstone = False
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def __str__(self) -> str:
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"""Override string method to provide more readable output."""
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return f"K: {self.key} V: {self.value} TS: {self.is_tombstone}"
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303
hash_map_oa.py
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303
hash_map_oa.py
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# Name: Andrew Scott
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# OSU Email: scottand@oregonstate.edu
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# Course: CS261 - Data Structures
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# Assignment: 6
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# Due Date: 2022-06-03
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# Description: HashMap implementation using Open Addressing with Quadratic
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# Probing
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from a6_include import DynamicArray, HashEntry, hash_function_1, hash_function_2
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class HashMap:
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def __init__(self, capacity: int, function) -> None:
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"""
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Initialize new HashMap that uses
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quadratic probing for collision resolution
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DO NOT CHANGE THIS METHOD IN ANY WAY
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"""
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self._buckets = DynamicArray()
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for _ in range(capacity):
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self._buckets.append(None)
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self._capacity = capacity
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self._hash_function = function
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self._size = 0
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def __str__(self) -> str:
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"""
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Override string method to provide more readable output
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DO NOT CHANGE THIS METHOD IN ANY WAY
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"""
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out = ""
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for i in range(self._buckets.length()):
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out += str(i) + ": " + str(self._buckets[i]) + "\n"
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return out
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def get_size(self) -> int:
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"""
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Return size of map
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DO NOT CHANGE THIS METHOD IN ANY WAY
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"""
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return self._size
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def get_capacity(self) -> int:
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"""
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Return capacity of map
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DO NOT CHANGE THIS METHOD IN ANY WAY
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"""
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return self._capacity
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# ------------------------------------------------------------------ #
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def put(self, key: str, value: object) -> None:
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"""
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TODO: Write this implementation
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"""
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# remember, if the load factor is greater than or equal to 0.5,
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# resize the table before putting the new key/value pair
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pass
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def table_load(self) -> float:
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"""
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TODO: Write this implementation
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"""
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pass
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def empty_buckets(self) -> int:
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"""
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TODO: Write this implementation
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"""
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pass
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def resize_table(self, new_capacity: int) -> None:
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"""
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TODO: Write this implementation
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"""
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# remember to rehash non-deleted entries into new table
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pass
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def get(self, key: str) -> object:
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"""
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TODO: Write this implementation
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"""
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pass
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def contains_key(self, key: str) -> bool:
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"""
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TODO: Write this implementation
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"""
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pass
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def remove(self, key: str) -> None:
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"""
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TODO: Write this implementation
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"""
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pass
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def clear(self) -> None:
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"""
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TODO: Write this implementation
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"""
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pass
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def get_keys(self) -> DynamicArray:
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"""
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TODO: Write this implementation
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"""
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pass
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# ------------------- BASIC TESTING ---------------------------------------- #
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if __name__ == "__main__":
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print("\nPDF - put example 1")
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print("-------------------")
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m = HashMap(50, hash_function_1)
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for i in range(150):
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m.put("str" + str(i), i * 100)
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if i % 25 == 24:
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print(m.empty_buckets(), m.table_load(), m.get_size(), m.get_capacity())
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print("\nPDF - put example 2")
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print("-------------------")
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m = HashMap(40, hash_function_2)
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for i in range(50):
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m.put("str" + str(i // 3), i * 100)
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if i % 10 == 9:
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print(m.empty_buckets(), m.table_load(), m.get_size(), m.get_capacity())
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print("\nPDF - table_load example 1")
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print("--------------------------")
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m = HashMap(100, hash_function_1)
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print(m.table_load())
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m.put("key1", 10)
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print(m.table_load())
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m.put("key2", 20)
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print(m.table_load())
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m.put("key1", 30)
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print(m.table_load())
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print("\nPDF - table_load example 2")
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print("--------------------------")
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m = HashMap(50, hash_function_1)
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for i in range(50):
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m.put("key" + str(i), i * 100)
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if i % 10 == 0:
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print(m.table_load(), m.get_size(), m.get_capacity())
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print("\nPDF - empty_buckets example 1")
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print("-----------------------------")
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m = HashMap(100, hash_function_1)
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print(m.empty_buckets(), m.get_size(), m.get_capacity())
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m.put("key1", 10)
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print(m.empty_buckets(), m.get_size(), m.get_capacity())
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m.put("key2", 20)
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print(m.empty_buckets(), m.get_size(), m.get_capacity())
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m.put("key1", 30)
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print(m.empty_buckets(), m.get_size(), m.get_capacity())
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m.put("key4", 40)
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print(m.empty_buckets(), m.get_size(), m.get_capacity())
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print("\nPDF - empty_buckets example 2")
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print("-----------------------------")
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m = HashMap(50, hash_function_1)
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for i in range(150):
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m.put("key" + str(i), i * 100)
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if i % 30 == 0:
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print(m.empty_buckets(), m.get_size(), m.get_capacity())
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print("\nPDF - resize example 1")
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print("----------------------")
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m = HashMap(20, hash_function_1)
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m.put("key1", 10)
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print(m.get_size(), m.get_capacity(), m.get("key1"), m.contains_key("key1"))
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m.resize_table(30)
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print(m.get_size(), m.get_capacity(), m.get("key1"), m.contains_key("key1"))
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print("\nPDF - resize example 2")
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print("----------------------")
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m = HashMap(75, hash_function_2)
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keys = [i for i in range(1, 1000, 13)]
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for key in keys:
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m.put(str(key), key * 42)
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print(m.get_size(), m.get_capacity())
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for capacity in range(111, 1000, 117):
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m.resize_table(capacity)
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if m.table_load() >= 0.5:
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print(
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"Check that capacity gets updated during resize(); "
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"don't wait until the next put()"
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)
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m.put("some key", "some value")
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result = m.contains_key("some key")
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m.remove("some key")
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for key in keys:
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# all inserted keys must be present
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result &= m.contains_key(str(key))
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# NOT inserted keys must be absent
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result &= not m.contains_key(str(key + 1))
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print(
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capacity, result, m.get_size(), m.get_capacity(), round(m.table_load(), 2)
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)
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print("\nPDF - get example 1")
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print("-------------------")
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m = HashMap(30, hash_function_1)
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print(m.get("key"))
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m.put("key1", 10)
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print(m.get("key1"))
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print("\nPDF - get example 2")
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print("-------------------")
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m = HashMap(150, hash_function_2)
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for i in range(200, 300, 7):
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m.put(str(i), i * 10)
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print(m.get_size(), m.get_capacity())
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for i in range(200, 300, 21):
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print(i, m.get(str(i)), m.get(str(i)) == i * 10)
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print(i + 1, m.get(str(i + 1)), m.get(str(i + 1)) == (i + 1) * 10)
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print("\nPDF - contains_key example 1")
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print("----------------------------")
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m = HashMap(10, hash_function_1)
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print(m.contains_key("key1"))
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m.put("key1", 10)
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m.put("key2", 20)
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m.put("key3", 30)
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print(m.contains_key("key1"))
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print(m.contains_key("key4"))
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print(m.contains_key("key2"))
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print(m.contains_key("key3"))
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m.remove("key3")
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print(m.contains_key("key3"))
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print("\nPDF - contains_key example 2")
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print("----------------------------")
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m = HashMap(75, hash_function_2)
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keys = [i for i in range(1, 1000, 20)]
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for key in keys:
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m.put(str(key), key * 42)
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print(m.get_size(), m.get_capacity())
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result = True
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for key in keys:
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# all inserted keys must be present
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result &= m.contains_key(str(key))
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# NOT inserted keys must be absent
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result &= not m.contains_key(str(key + 1))
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print(result)
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print("\nPDF - remove example 1")
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print("----------------------")
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m = HashMap(50, hash_function_1)
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print(m.get("key1"))
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m.put("key1", 10)
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print(m.get("key1"))
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m.remove("key1")
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print(m.get("key1"))
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m.remove("key4")
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print("\nPDF - clear example 1")
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print("---------------------")
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m = HashMap(100, hash_function_1)
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print(m.get_size(), m.get_capacity())
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m.put("key1", 10)
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m.put("key2", 20)
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m.put("key1", 30)
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print(m.get_size(), m.get_capacity())
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m.clear()
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print(m.get_size(), m.get_capacity())
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print("\nPDF - clear example 2")
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print("---------------------")
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m = HashMap(50, hash_function_1)
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print(m.get_size(), m.get_capacity())
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m.put("key1", 10)
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print(m.get_size(), m.get_capacity())
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m.put("key2", 20)
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print(m.get_size(), m.get_capacity())
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m.resize_table(100)
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print(m.get_size(), m.get_capacity())
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m.clear()
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print(m.get_size(), m.get_capacity())
|
||||
|
||||
print("\nPDF - get_keys example 1")
|
||||
print("------------------------")
|
||||
m = HashMap(10, hash_function_2)
|
||||
for i in range(100, 200, 10):
|
||||
m.put(str(i), str(i * 10))
|
||||
print(m.get_keys())
|
||||
|
||||
m.resize_table(1)
|
||||
print(m.get_keys())
|
||||
|
||||
m.put("200", "2000")
|
||||
m.remove("100")
|
||||
m.resize_table(2)
|
||||
print(m.get_keys())
|
||||
334
hash_map_sc.py
Normal file
334
hash_map_sc.py
Normal file
|
|
@ -0,0 +1,334 @@
|
|||
# Name: Andrew Scott
|
||||
# OSU Email: scottand@oregonstate.edu
|
||||
# Course: CS261 - Data Structures
|
||||
# Assignment: 6
|
||||
# Due Date: 2022-06-03
|
||||
# Description: HashMap implementation using Separate Chaining
|
||||
|
||||
|
||||
from a6_include import DynamicArray, LinkedList, hash_function_1, hash_function_2
|
||||
|
||||
|
||||
class HashMap:
|
||||
def __init__(self, capacity: int, function) -> None:
|
||||
"""
|
||||
Initialize new HashMap that uses
|
||||
separate chaining for collision resolution
|
||||
DO NOT CHANGE THIS METHOD IN ANY WAY
|
||||
"""
|
||||
self._buckets = DynamicArray()
|
||||
for _ in range(capacity):
|
||||
self._buckets.append(LinkedList())
|
||||
|
||||
self._capacity = capacity
|
||||
self._hash_function = function
|
||||
self._size = 0
|
||||
|
||||
def __str__(self) -> str:
|
||||
"""
|
||||
Override string method to provide more readable output
|
||||
DO NOT CHANGE THIS METHOD IN ANY WAY
|
||||
"""
|
||||
out = ""
|
||||
for i in range(self._buckets.length()):
|
||||
out += str(i) + ": " + str(self._buckets[i]) + "\n"
|
||||
return out
|
||||
|
||||
def get_size(self) -> int:
|
||||
"""
|
||||
Return size of map
|
||||
DO NOT CHANGE THIS METHOD IN ANY WAY
|
||||
"""
|
||||
return self._size
|
||||
|
||||
def get_capacity(self) -> int:
|
||||
"""
|
||||
Return capacity of map
|
||||
DO NOT CHANGE THIS METHOD IN ANY WAY
|
||||
"""
|
||||
return self._capacity
|
||||
|
||||
# ------------------------------------------------------------------ #
|
||||
|
||||
def put(self, key: str, value: object) -> None:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
def empty_buckets(self) -> int:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
def table_load(self) -> float:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
def clear(self) -> None:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
def resize_table(self, new_capacity: int) -> None:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
def get(self, key: str) -> object:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
def contains_key(self, key: str) -> bool:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
def remove(self, key: str) -> None:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
def get_keys(self) -> DynamicArray:
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
def find_mode(da: DynamicArray) -> (DynamicArray, int):
|
||||
"""
|
||||
TODO: Write this implementation
|
||||
"""
|
||||
# if you'd like to use a hash map,
|
||||
# use this instance of your Separate Chaining HashMap
|
||||
map = HashMap(da.length() // 3, hash_function_1)
|
||||
|
||||
|
||||
# ------------------- BASIC TESTING ---------------------------------------- #
|
||||
|
||||
if __name__ == "__main__":
|
||||
|
||||
print("\nPDF - put example 1")
|
||||
print("-------------------")
|
||||
m = HashMap(50, hash_function_1)
|
||||
for i in range(150):
|
||||
m.put("str" + str(i), i * 100)
|
||||
if i % 25 == 24:
|
||||
print(m.empty_buckets(), m.table_load(), m.get_size(), m.get_capacity())
|
||||
|
||||
print("\nPDF - put example 2")
|
||||
print("-------------------")
|
||||
m = HashMap(40, hash_function_2)
|
||||
for i in range(50):
|
||||
m.put("str" + str(i // 3), i * 100)
|
||||
if i % 10 == 9:
|
||||
print(m.empty_buckets(), m.table_load(), m.get_size(), m.get_capacity())
|
||||
|
||||
print("\nPDF - empty_buckets example 1")
|
||||
print("-----------------------------")
|
||||
m = HashMap(100, hash_function_1)
|
||||
print(m.empty_buckets(), m.get_size(), m.get_capacity())
|
||||
m.put("key1", 10)
|
||||
print(m.empty_buckets(), m.get_size(), m.get_capacity())
|
||||
m.put("key2", 20)
|
||||
print(m.empty_buckets(), m.get_size(), m.get_capacity())
|
||||
m.put("key1", 30)
|
||||
print(m.empty_buckets(), m.get_size(), m.get_capacity())
|
||||
m.put("key4", 40)
|
||||
print(m.empty_buckets(), m.get_size(), m.get_capacity())
|
||||
|
||||
print("\nPDF - empty_buckets example 2")
|
||||
print("-----------------------------")
|
||||
m = HashMap(50, hash_function_1)
|
||||
for i in range(150):
|
||||
m.put("key" + str(i), i * 100)
|
||||
if i % 30 == 0:
|
||||
print(m.empty_buckets(), m.get_size(), m.get_capacity())
|
||||
|
||||
print("\nPDF - table_load example 1")
|
||||
print("--------------------------")
|
||||
m = HashMap(100, hash_function_1)
|
||||
print(m.table_load())
|
||||
m.put("key1", 10)
|
||||
print(m.table_load())
|
||||
m.put("key2", 20)
|
||||
print(m.table_load())
|
||||
m.put("key1", 30)
|
||||
print(m.table_load())
|
||||
|
||||
print("\nPDF - table_load example 2")
|
||||
print("--------------------------")
|
||||
m = HashMap(50, hash_function_1)
|
||||
for i in range(50):
|
||||
m.put("key" + str(i), i * 100)
|
||||
if i % 10 == 0:
|
||||
print(m.table_load(), m.get_size(), m.get_capacity())
|
||||
|
||||
print("\nPDF - clear example 1")
|
||||
print("---------------------")
|
||||
m = HashMap(100, hash_function_1)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
m.put("key1", 10)
|
||||
m.put("key2", 20)
|
||||
m.put("key1", 30)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
m.clear()
|
||||
print(m.get_size(), m.get_capacity())
|
||||
|
||||
print("\nPDF - clear example 2")
|
||||
print("---------------------")
|
||||
m = HashMap(50, hash_function_1)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
m.put("key1", 10)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
m.put("key2", 20)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
m.resize_table(100)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
m.clear()
|
||||
print(m.get_size(), m.get_capacity())
|
||||
|
||||
print("\nPDF - resize example 1")
|
||||
print("----------------------")
|
||||
m = HashMap(20, hash_function_1)
|
||||
m.put("key1", 10)
|
||||
print(m.get_size(), m.get_capacity(), m.get("key1"), m.contains_key("key1"))
|
||||
m.resize_table(30)
|
||||
print(m.get_size(), m.get_capacity(), m.get("key1"), m.contains_key("key1"))
|
||||
|
||||
print("\nPDF - resize example 2")
|
||||
print("----------------------")
|
||||
m = HashMap(75, hash_function_2)
|
||||
keys = [i for i in range(1, 1000, 13)]
|
||||
for key in keys:
|
||||
m.put(str(key), key * 42)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
|
||||
for capacity in range(111, 1000, 117):
|
||||
m.resize_table(capacity)
|
||||
|
||||
m.put("some key", "some value")
|
||||
result = m.contains_key("some key")
|
||||
m.remove("some key")
|
||||
|
||||
for key in keys:
|
||||
# all inserted keys must be present
|
||||
result &= m.contains_key(str(key))
|
||||
# NOT inserted keys must be absent
|
||||
result &= not m.contains_key(str(key + 1))
|
||||
print(
|
||||
capacity, result, m.get_size(), m.get_capacity(), round(m.table_load(), 2)
|
||||
)
|
||||
|
||||
print("\nPDF - get example 1")
|
||||
print("-------------------")
|
||||
m = HashMap(30, hash_function_1)
|
||||
print(m.get("key"))
|
||||
m.put("key1", 10)
|
||||
print(m.get("key1"))
|
||||
|
||||
print("\nPDF - get example 2")
|
||||
print("-------------------")
|
||||
m = HashMap(150, hash_function_2)
|
||||
for i in range(200, 300, 7):
|
||||
m.put(str(i), i * 10)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
for i in range(200, 300, 21):
|
||||
print(i, m.get(str(i)), m.get(str(i)) == i * 10)
|
||||
print(i + 1, m.get(str(i + 1)), m.get(str(i + 1)) == (i + 1) * 10)
|
||||
|
||||
print("\nPDF - contains_key example 1")
|
||||
print("----------------------------")
|
||||
m = HashMap(10, hash_function_1)
|
||||
print(m.contains_key("key1"))
|
||||
m.put("key1", 10)
|
||||
m.put("key2", 20)
|
||||
m.put("key3", 30)
|
||||
print(m.contains_key("key1"))
|
||||
print(m.contains_key("key4"))
|
||||
print(m.contains_key("key2"))
|
||||
print(m.contains_key("key3"))
|
||||
m.remove("key3")
|
||||
print(m.contains_key("key3"))
|
||||
|
||||
print("\nPDF - contains_key example 2")
|
||||
print("----------------------------")
|
||||
m = HashMap(75, hash_function_2)
|
||||
keys = [i for i in range(1, 1000, 20)]
|
||||
for key in keys:
|
||||
m.put(str(key), key * 42)
|
||||
print(m.get_size(), m.get_capacity())
|
||||
result = True
|
||||
for key in keys:
|
||||
# all inserted keys must be present
|
||||
result &= m.contains_key(str(key))
|
||||
# NOT inserted keys must be absent
|
||||
result &= not m.contains_key(str(key + 1))
|
||||
print(result)
|
||||
|
||||
print("\nPDF - remove example 1")
|
||||
print("----------------------")
|
||||
m = HashMap(50, hash_function_1)
|
||||
print(m.get("key1"))
|
||||
m.put("key1", 10)
|
||||
print(m.get("key1"))
|
||||
m.remove("key1")
|
||||
print(m.get("key1"))
|
||||
m.remove("key4")
|
||||
|
||||
print("\nPDF - get_keys example 1")
|
||||
print("------------------------")
|
||||
m = HashMap(10, hash_function_2)
|
||||
for i in range(100, 200, 10):
|
||||
m.put(str(i), str(i * 10))
|
||||
print(m.get_keys())
|
||||
|
||||
m.resize_table(1)
|
||||
print(m.get_keys())
|
||||
|
||||
m.put("200", "2000")
|
||||
m.remove("100")
|
||||
m.resize_table(2)
|
||||
print(m.get_keys())
|
||||
|
||||
print("\nPDF - find_mode example 1")
|
||||
print("-----------------------------")
|
||||
da = DynamicArray(["apple", "apple", "grape", "melon", "melon", "peach"])
|
||||
map = HashMap(da.length() // 3, hash_function_1)
|
||||
mode, frequency = find_mode(da)
|
||||
print(f"Input: {da}\nMode: {mode}, Frequency: {frequency}")
|
||||
|
||||
print("\nPDF - find_mode example 2")
|
||||
print("-----------------------------")
|
||||
test_cases = (
|
||||
[
|
||||
"Arch",
|
||||
"Manjaro",
|
||||
"Manjaro",
|
||||
"Mint",
|
||||
"Mint",
|
||||
"Mint",
|
||||
"Ubuntu",
|
||||
"Ubuntu",
|
||||
"Ubuntu",
|
||||
"Ubuntu",
|
||||
],
|
||||
["one", "two", "three", "four", "five"],
|
||||
["2", "4", "2", "6", "8", "4", "1", "3", "4", "5", "7", "3", "3", "2"],
|
||||
)
|
||||
|
||||
for case in test_cases:
|
||||
da = DynamicArray(case)
|
||||
map = HashMap(da.length() // 3, hash_function_2)
|
||||
mode, frequency = find_mode(da)
|
||||
print(f"Input: {da}\nMode: {mode}, Frequency: {frequency}\n")
|
||||
Loading…
Reference in a new issue