[submission:https://mirror.codeforces.com/contest/1774/submission/250501754]

i have checked everything but cant find the bug

this is my submission:https://mirror.codeforces.com/contest/1831/submission/213733972

iam getting error of SOE,if somebody experienced this error please help as this is my first time getting this error.

regards, vishesh.

In this submission :https://mirror.codeforces.com/contest/1775/submission/207782995 I am getting MLE i have scartched my head for hours and its still not resolving,can any comrade help this noob?