Hey guys, I was solving a problem and then I just sent it to see if it's correct, I am talking about this problem: https://codeforces.com/problemset/problem/253/A and it gives me WA at the first pretest even tho my solution it's correct, https://codeforces.com/contest/253/submission/47515698 it's about this submission, what is that "checker log" saying there?
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You should read the input from a file, and print the output to another file, not from/to standard input/output, as it's mentioned below the title of the problem.
Search for this, please, for more details about how to use it.
Right, my bad.