my solution is giving the wrong answer to The Treasure of The Segments please help me finding the test case where my solution is wrong?

solution link — https://codeforces.me/contest/1462/submission/101416335.

thanks in advance.

problem link: https://www.codechef.com/problems/ECJAN20I my solution : https://www.codechef.com/viewsolution/29822647

thanks in advance .