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Maximum sum of increasing order elements from n arrays
Easy Accuracy: 56.16% Submissions: 447 Points: 2

Given n arrays of size m each. Find maximum sum obtained by selecting a number from each array such that the element selected from the i-th array is more than the element selected from (i-1)-th array. If maximum sum cannot be obtained then return 0.

Example 1:

​Input : arr[ ] = {{1,7,4,3}, {4,2,5,1}, {9,5,1,8}}
Output : 18
Explanation:
We can select 4 from the first array,
5 from second array and 9 from the third array.


​Example 2:

Input : arr[ ] = {{9,8,7}, {6,5,4}, {3,2,1}} 
Output :  0

Your Task:
This is a function problem. The input is already taken care of by the driver code. You only need to complete the function maximumSum() that takes number of row N, a number of Column M, 2-d array (arr), and return the maximum sum if cannot be obtained then return 0. The driver code takes care of the printing.

Expected Time Complexity: O(N*M).
Expected Auxiliary Space: O(1).

 

Constraints:
1 ≤ N, M ≤ 500

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Maximum sum of increasing order elements from n arrays

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