Hello Codeforces! During Educational Codeforces Round 130 (rated for Div 2) contest, I submitted my solution for Problem C 1697C - awoo's Favorite Problem in GNU G++17 7.3.0 and I got TLE on testcase 10 as verdict and after contest when I submitted the same solution in GNU G++17 9.2.0, what i saw I got AC as verdict. This whole thing burnt my mind and that's why I am writing this blog. I have proof for this 160374839 and as I said I got TLE as verdict. and for this solution 160450643, got AC. I hope Codeforces looks into it and explain it properly. Guys please upvote if u are agree with this.