this code give me run time error .. can anyone suggest me please why this occurs and what I need for this problem https://codeforces.com/contest/1265/submission/120654561

Dear guys I face TLE problem .. here I use only loop bt face this tle on test case 11 .. https://codeforces.com/contest/1354/submission/83116758?fbclid=IwAR2sL6R3we-kMkjMkvGJQJ1Kep1Dj8j-ovhb-MD5omCM18trUbm3tTwLUU0 What's the time complexity of my code what should I need to change ??

why this problem solution i got TLE bt my codeblocks show me output .. what should i do ... https://codeforces.com/contest/230/submission/80769891

dear guys i can't catch my problem which show my "function returns nothing" in codeforce i tried hard but can't understand ..please anyone give me this solution why returns nothing ..i am a beginner programmer .. THANKS IN ADVANCE https://codeforces.com/contest/706/submission/80536755