Transpose of matrix in C++

The transpose of a matrix is obtained by interchanging its rows and column.

Algorithm:

1. Take input for number of rows and columns.

2. Interchange rows and columns.

Below given code doesn’t use functions. It can also be written using functions.

 

#include<iostream>
using namespace std;
int row,column;
int main()
{
    int value,row,column;
    //insert rows and columns for matrix
    cout<<"Number of rows :";
    cin>>row;
    cout<<"Number of columns :";
    cin>>column;
    int a[row][column];
	//insert values in the matrix
	cout<<"Insert value in matix :";
	cout<<"\n a: \n";
	for(int i=0;i<row;i++)
	{
		for(int j=0;j<column;j++)
		{
			cin>>value;
			a[i][j]=value;
		}
	}

   //puting content of rows of a in columns of b
    int b[column][row];
    for(int j=0;j<row;j++)
	{
		for(int i=0;i<column;i++)
		   	b[i][j]=a[j][i];
	}

   //copy contents of b in a
    for(int i=0;i<column;i++)
	{
		for(int j=0;j<row;j++)
			a[i][j]=b[i][j];
	}
    cout<<"Transpose of matrix is:"<<endl;
	//display a
	for(int i=0;i<column;i++)
	{
		for(int j=0;j<row;j++)
			cout<<a[i][j]<<" ";
		cout<<"\n";
	}

	return 0;
}