Hi everyone, i found this youtube channel KonkSpace that shared problems solution during the contest (he also shared solutions during previous contests) Problem A video similar submissions: https://mirror.codeforces.com/contest/1730/submission/173458665 https://mirror.codeforces.com/contest/1730/submission/173454879 https://mirror.codeforces.com/contest/1730/submission/173456823 https://mirror.codeforces.com/contest/1730/submission/173446186

Problem C video similar submissions: https://mirror.codeforces.com/contest/1730/submission/173470649 https://mirror.codeforces.com/contest/1730/submission/173474117 https://mirror.codeforces.com/contest/1730/submission/173472281 https://mirror.codeforces.com/contest/1730/submission/173464253

Problem D video similar submissions: https://mirror.codeforces.com/contest/1730/submission/173491154 https://mirror.codeforces.com/contest/1730/submission/173492522 https://mirror.codeforces.com/contest/1730/submission/173498031 https://mirror.codeforces.com/contest/1730/submission/173495395 https://mirror.codeforces.com/contest/1730/submission/173492425 https://mirror.codeforces.com/contest/1730/submission/173483747

unfortunately there are hundreds of submissions

Kindly look at the above submissions and try to do some thing to avoid similar case in the future. MikeMirzayanov