Can't find mistake in COPS submission

general
1

Problem Link: https://www.codechef.com/problems/COPS

Submission Link: https://www.codechef.com/viewsolution/17465660

I am not getting why my submission is giving WA. Can someone please point out the mistake?

2

@saurabhrk What do you intend to do in this part.

            int ans = 0;
            for(int i=0,j=1;j=1)
                    ans+= not_covered;
            }
            
 
            ans += 100-l.get(l.size()-1).end;
            ans += l.get(0).st-1;