# Print the corner elements of the matrix using C++

In this tutorial, we will learn how to print the Corner elements of the matrix using C++.

The program prints the top left element, top right element, bottom left element and bottom right element as output.

## Input in Matrix format

It is a rows*columns (i.e) the rows and columns can be of any length.

The matrix consists of ‘r’ rows and ‘c’ columns.

```int rows,cols;
cin>>rows;
cin>>cols;
int matrix[rows][cols];```

In the above code, we have initialised rows and cols variables to get the number of rows and number of columns in this matrix.

### How to get the matrix as input?

```for(int i=0;i<rows;i++){
for(int j=0;j<cols;j++){
cin>>matrix[i][j];
}
}```

In the above code segment, the first for loop denotes the row index position where i=0 is the row index.

The second for loop denotes the column index position where j=0 is the column index.

Input format:

```Enter the number of rows and columns of the matrix: 3 4
Enter the matrix elements:
1 2 3 4
5 6 7 8
9 10 11 12```

#### CPP code to print the corner elements of the matrix

```#include<iostream.h>
using namespace std;
int main(){
int rows,cols;
cout<<"Enter the number of rows and columns of the matrix:"<<"\t";
cin>>rows;
cin>>cols;
int matrix[rows][cols];
cout<<"Enter the matrix elements:"<<"\n";
for(int i=0;i<rows;i++){
for(int j=0;j<cols;j++){
cin>>matrix[i][j];
}
}
cout<<"THE CORNER ELEMENTS OF THE MATRIX ARE:"<<"\n";
for(int i=0;i<rows;i++){
for(int j=0;j<cols;j++){
if(i==0&&j==0){
cout<<"Top Left Element of the matrix:"<<"\t";
cout<<matrix[0][0]<<"\n";
}
if(i==0&&j==cols-1){
cout<<"Top Right Element of the matrix:"<<"\t";
cout<<matrix[i][j]<<"\n";
}
if(i==rows-1&&j==0){
cout<<"Bottom Left Element of the matrix:"<<"\t";
cout<<matrix[i][j]<<"\n";
}
if(i==rows-1&&j==cols-1){
cout<<"Bottom Right Element of the matrix:"<<"\t";
cout<<matrix[i][j]<<"\n";
}
}
}
}```

In the above code,

• First if checks i==0 and j==0 and prints the first element.
• The if statement checks i==0 and j==cols-1 and prints the top right element.
• The third if statement checks i==rows-1 and j==0 and prints bottom left element.
• The next if statement checks i==rows-1 and j==cols-1 and prints bottom right element.

Output:

THE CORNER ELEMENTS OF THE MATRIX ARE:
Top Left Element of the matrix: 1
Top Right Element of The matrix: 4
Bottom Left Element of the matrix: 9
Bottom Right Element of the matrix: 12

Therefore the program prints the corner elements of the matrix.
We hope this tutorial helped you to understand how to print the corner elements of the matrix.