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Solution.cs
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31 lines (28 loc) · 708 Bytes
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public class Solution
{
public int ChalkReplacer(int[] chalk, int k)
{
return ChalkReplacer_Recurse(chalk, k);
//return ChalkReplacer_Loop(chalk, k);
}
public int ChalkReplacer_Recurse(int[] chalk, int k)
{
int sum = 0;
for (int i = 0; i < chalk.Length; i++)
{
sum += chalk[i];
if (sum > k) return i;
}
return ChalkReplacer_Recurse(chalk, k % sum);
}
public int ChalkReplacer_Loop(int[] chalk, int k)
{
int i = 0;
while (k >= 0)
{
k -= chalk[i];
i = (i + 1) % chalk.Length;
}
return (i + chalk.Length - 1) % chalk.Length;
}
}