Recently i was doing this (https://codeforces.me/contest/448/problem/D) question and got stuck when my solution goes in infinite loop then i see the correct solution and notice the difference and dry run my code, then i realize my code is incorrect. Now i want to know why this happen.. link to correct solution -- https://codeforces.me/contest/448/submission/7139620 what i have done is instead of writing l = x+1 i have written l=x Please HELP..