Whats the difference between these two programs?

help
1

One of the solution is getting accepted and another is not for the question https://www.codechef.com/LRNDSA02/problems/PSHOT

This is the code which is not getting accepted
https://www.codechef.com/viewsolution/48047424

This is the code which is getting accepted
https://www.codechef.com/viewsolution/48047705

Any help or suggestion will be appreciated. Thanks.