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22 lines
907 B
Markdown
22 lines
907 B
Markdown
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# Hints
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## 1. Calculate the interest rate
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- You are expected to return a percentage.
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## 2. Calculate the interest
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- When calculating interest, it might be helpful to notice that `interest_rate` returns a percentage.
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- You can use the function defined in the previous task (`interest_rate`) to calculate the interest.
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## 3. Calculate the annual balance update
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- When calculating the annual balance update, use the functions that have been defined in the previous steps.
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## 4. Calculate the years before reaching the desired balance
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- To calculate the years, one can keep looping until the desired balance is reached using a [`for`][for] loop.
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- There is a special [operator][increment] to increment values by 1.
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[for]: https://www.learncpp.com/cpp-tutorial/introduction-to-loops-and-while-statements/
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[increment]: https://www.learncpp.com/cpp-tutorial/increment-decrement-operators-and-side-effects/
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