Problem:- https://codeforces.net/edu/course/2/lesson/4/1/practice/contest/273169/problem/C

My submission:-https://pastebin.com/GGeGnBdT or https://ideone.com/VNbvP0

It is giving WA on test case 14 again and again.

Plz can anyone tell where is bug in my code.Any help would be appreciated.

Problem:- https://www.hackerearth.com/practice/algorithms/dynamic-programming/introduction-to-dynamic-programming-1/practice-problems/algorithm/the-chocolate-boy-738c799b/

My sub:- https://pastebin.com/E1hqm56H

Problem:- https://www.hackerearth.com/practice/algorithms/dynamic-programming/introduction-to-dynamic-programming-1/practice-problems/algorithm/prime-numbers-again/

My submission:- https://pastebin.com/aL9vCYWu

Please anyone tell what is wrong in this code

https://www.spoj.com/problems/SHUB1307/ Can anyone tell me this problem which i found on spoj I think it uses the concept of 2D grid minimum cost path but I can't come up with a solution.This problem seems to be a tougher optimization of the classic 2D grid minimum cost path . Please can any one help.