PROBLEM DESCRIPTION
A items are to be delivered in a circle of size B.
Find the position where the Ath item will be delivered if we start from a given position C.
NOTE: Items are distributed at adjacent positions starting from C.
SOLUTION
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public class Solution {
public int solve(int A, int B, int C) {
C = (C-1)%B; // conver to 0 index
A = A%B; // after every B items, it will reach same position, so A%B will give extra items left
return (C + A)%B; // from C, deliver more A items to reach the needed position (if it goes beyond B, it will cycle again)
}
}
Alternative: return (A+C-1)%B;