Find diagonal element of the matrix by R4R Team

Matrix:
-Multidimensional Array
-Matrix consist of the rows and columns.

Syntax-
array[row][column]
//Martix with numbers of rows and columns

Diagonal of matrix:
condition: matrix must be sqaure matrix

Example-
matrix is:
1 2 3
4 5 6
7 8 9
Diagonal elements is {1,5,9}

program-

#include< stdio.h>
int main()
{
int a[10][10],b[10][10],r,c,i,j;
printf("Enter rows and columns for Matrix\n");
scanf("%d%d",&r,&c);
//input in matrix
printf("Enter %d number in matrix\n",r*c);
for(i=0;i< r;i++)
{
for(j=0;j< c;j++){
scanf("%d",&a[i][j]);
}
}
printf("Diagonal elements are\n");
for(i=0;i< r;i++)
{
for(j=0;j< c;j++)
{
if(i==j){
printf("%d ",a[i][j]);
}
}
}
}


output-

Enter rows and columns for Matrix
3 3
Enter 9 number in matrix
1 2 3 4 5 6 7 8 9
Diagonal elements are
1 5 9




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