Given an n*m grid containing integers. Rows are numbered from 1 to n and columns are numbered from 1 to m. Write a program in C++ to find the path with minimum sum from (1,1) to (n,m). You can either move right or down at each step. 1<= (n,m) <= 1000. Your complexity should be O(n*m) . Sample Input  4 5 2 -3 8 8 5 7 -2 5 8 3 2 1 3 0 4 3 4 2 8 4 Sample Output 9

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Given an n*m grid containing integers. Rows are numbered from 1 to n and columns
are numbered from 1 to m. Write a program in C++ to find the path with minimum sum from (1,1) to (n,m). You can
either move right or down at each step. 1<= (n,m) <= 1000.
Your complexity should be O(n*m) .

Sample Input 
4 5
2 -3 8 8 5
7 -2 5 8 3
2 1 3 0 4
3 4 2 8 4

Sample Output

9

 

Explanation: 2 -> -3 -> -2 -> 1 -> 3 -> 0 -> 4 -> 4

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