C++ program to find sum of each row and columns of a matrix

By: Prof. Fazal Rehman Shamil 

Last modified on February 12th, 2021

Write the C++ program to find the sum of each row and columns of a matrix.

Write a C++ program to read elements in a two-dimensional array (2D Array) and find the sum of elements of each row and columns of the matrix.

Write a C++ program to read numbers in a matrix and show the sum of each row and columns of a two-dimensional array (2D Array).

C++ program to calculate the sum of rows and columns of a matrix. What is the Logic to find the sum of each row and columns in a two-dimensional array (2D Array)?

Logic

Program

#include <iostream>
using namespace std;
int main()
{
int size=2;
int a[size][size];
int row, col, sum;
cout<<"Please Enter elements in array of size "<<size<<"x"<<size<<endl<<endl;
for(row=0; row<size; row++)
{
for(col=0; col<size; col++)
{
cin>>a[row][col];
}
}
for(row=0; row<size; row++)
{
for(col=0; col<size; col++)
{
cout<<a[row][col]<<" ";
}
cout<<endl;
}
for(row=0; row<size; row++)
{
sum = 0;
for(col=0; col<size; col++)
{
sum = sum + a[row][col];
}
cout<<"Sum of elements of Row: "<< row+1<<" is "<< sum<<endl;
}    
for(col=0; col<size; col++)
{
sum = 0;
for(row=0; row<size; row++)
{
sum += a[row][col];
}
cout<<"Sum of elements of Column: " <<row+1<<" is "<<sum<<endl;
}
}

#include <iostream>

using namespace std;

int main()

{

int size=2;

int a[size][size];

int row, col, sum;

cout<<"Please Enter elements in array of size "<<size<<"x"<<size<<endl<<endl;

for(row=0; row<size; row++)

{

for(col=0; col<size; col++)

{

cin>>a[row][col];

}

for(row=0; row<size; row++)

{

for(col=0; col<size; col++)

{

cout<<a[row][col]<<" ";

}

cout<<endl;

}

for(row=0; row<size; row++)

{

sum = 0;

for(col=0; col<size; col++)

{

sum = sum + a[row][col];

}

cout<<"Sum of elements of Row: "<< row+1<<" is "<< sum<<endl;

}

for(col=0; col<size; col++)

{

sum = 0;

for(row=0; row<size; row++)

{

sum += a[row][col];

}

cout<<"Sum of elements of Column: " <<row+1<<" is "<<sum<<endl;

}

Output

matrices with given row and column sums C++

EXPLANATION OF row sum and column sum of a matrix in c++

sum of elements in 2d array with for loop

C++ array examples for papers and examinations

dry run explanation of 2 dimensional array

two dimensional array diagram — two-dimensional array diagram

C++ adding rows and colums of two dimensional array

Author
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Prof. Fazal Rehman Shamil

CEO @ T4Tutorials.com
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C++ program to find sum of each row and columns of a matrix

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