Hello guys I am stuck in solving the problem of "E-singer's tour". I am solving it using O(n) but I have no idea why it gets me a TLE error. Even though getting the input is O(n) and my code is O(n). I have no idea how to solve this problem. I even don't find any other way. my submission: https://mirror.codeforces.com/contest/1618/submission/249522519 my other submission that might have more optimization:https://mirror.codeforces.com/contest/1618/submission/249523839