# Answer to Question #47691 in C++ for rishi

Question #47691

write a COLSUM() function in c++ to find sum of each column o a N*M Matrix.

Expert's answer

#include <stdlib.h>

#include <iostream>

#include <stdio.h>

#include <cstdlib>

using namespace std;

void ColSum(int **mas, int n, int m);

int main()

{

int n,m;

cout<<"Enter the n: ";

cin>>n;

cout<<"Enter the m: ";

cin>>m;

int **mas = new int* [n];

for (int i = 0; i < n; i++)

mas[i] = new int[m];

cout<<"Enter the array elements: (Array "<<n<<"*"<<m<<"):"<<endl;

for (int i = 0; i < n; i++)

{

for (int j = 0; j < m; j++)

{

cin>>mas[i][j];

}

}

ColSum(mas, n, m);

system("pause");

return 0;

}

void ColSum(int* mas[], int n, int m)

{

int sum = 0;

for (int j = 0; j < m; j++)

{

for (int i = 0; i < n;i++)

{

sum +=mas[i][j];

}

cout<<"Sum of "<<j+1<<" column: "<<sum<<endl;

sum = 0;

}

}

#include <iostream>

#include <stdio.h>

#include <cstdlib>

using namespace std;

void ColSum(int **mas, int n, int m);

int main()

{

int n,m;

cout<<"Enter the n: ";

cin>>n;

cout<<"Enter the m: ";

cin>>m;

int **mas = new int* [n];

for (int i = 0; i < n; i++)

mas[i] = new int[m];

cout<<"Enter the array elements: (Array "<<n<<"*"<<m<<"):"<<endl;

for (int i = 0; i < n; i++)

{

for (int j = 0; j < m; j++)

{

cin>>mas[i][j];

}

}

ColSum(mas, n, m);

system("pause");

return 0;

}

void ColSum(int* mas[], int n, int m)

{

int sum = 0;

for (int j = 0; j < m; j++)

{

for (int i = 0; i < n;i++)

{

sum +=mas[i][j];

}

cout<<"Sum of "<<j+1<<" column: "<<sum<<endl;

sum = 0;

}

}

``

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