Column Wise Sum

 Column Wise Sum

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Given a 2D integer array of size M*N, find and print the sum of ith column elements separated by space.

Input Format :

First and only line of input contains M and N, followed by M * N space separated integers representing the elements in the 2D array.

Output Format :

Sum of every ith column elements (separated by space)

Constraints :

1 <= M, N <= 10^3

Sample Input :

4 2 1 2 3 4 5 6 7 8

Sample Output :

16 20

#include<iostream>
using namespace std;

int main(){
       /*  Read input as specified in the question.
    * Print output as specified in the question.
    
    */
    
    int sum;
    int n,m;
    cin>>n>>m;
    int array[n][m];
    for(int i=0;n>i;i++){
        for(int j=0;j<m;j++){
            cin>>array[i][j];
        }
    }
    
     
    for(int i=0;i<m;i++){
        sum=0;
        for(int j=0;j<n;j++){
            
            sum=sum+array[j][i];
        }
        cout<<sum<<" ";
    }
    
//     for(int j=0;j<m;j++){
//         for(int i=0;i<n;i++){
//             sum=sum+array[j][i];
            
//         }
//         cout<<sum<<" ";
//     }
    
    
  
}