link of problem: [problem:https://codeforces.com/problemset/gymProblem/104052/B].i got 70 points but how to get 100 points.I read solution of problem but i can't understand.Please help this problem to get 100 points
How to solve problem???
link of problem: [problem:https://codeforces.com/problemset/gymProblem/104052/B].i got 70 points but how to get 100 points.I read solution of problem but i can't understand.Please help this problem to get 100 points