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Candies.java
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Candies.java
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package by.andd3dfx.common;
/**
* <pre>
* You are given startingAmount of candies.
* Whenever you eat a certain number of candies (newEvery), you get an additional candy.
* What is the maximum number of candies you can eat?
*
* For example, if startingAmount equals 3 and newEvery equals 2, you can eat 5 candies in total:
* - Eat 2, Get 1, Remaining 2
* - Eat 2, Get 1, Remaining 1
* - Eat 1
* </pre>
*
* @see <a href="https://youtu.be/UNz2nM2qQ3E">Video solution</a>
*/
public class Candies {
public static int countCandies(int startingAmount, int newEvery) {
if (startingAmount < 0 || newEvery <= 0) {
return 0;
}
int candiesAmount = startingAmount;
int eaten = 0;
while (candiesAmount >= newEvery) {
int bonus = candiesAmount / newEvery;
eaten += newEvery * bonus;
candiesAmount -= newEvery * bonus;
candiesAmount += bonus;
}
return eaten + candiesAmount;
}
}