I have an issue! Can anyone pls help in resolving it.

I tried submitting code for the problem: Uncowed Forces

My Solution: My Code

Even though my code is giving correct output on my machine for the test case:

55 66 75 44 47
6 0 6 6 10
19 0

CORRECT OUTPUT: 6414

But on submitting Codeforces is generating output 6413, hence giving the verdict as Wrong Answer!

Why is this the case?

Is there something wrong with my implementation?

Or is there any issue from Codeforces side?