In last Codeforces Round 1072 (Div. 3), in problem C : https://codeforces.me/contest/2184/problem/C
My submission in constest time : https://codeforces.me/contest/2184/submission/357537571
After system test, my submission : https://codeforces.me/contest/2184/submission/357713730
2 submitted code are same, but first one got hacked.
how is it possible?



