Answer
#include <stdio.h>
int main() {
int a[5][5], b[5][5], c[5][5], i, j, k, sum = 0, m, n, o, p;
printf( "\nEnter the row and column of first matrix" );
scanf( "%d %d", &m, &n );
printf( "\nEnter the row and column of second matrix" );
scanf( "%d %d", &o, &p );
if(n!=o) {
printf( "Matrix mutiplication is not possible" );
printf( "\nColumn of first matrix must be same as row of second matrix" );
}
else {
printf( "\nEnter the First matrix" );
for( i=0; i<m; i++ )
for( j=0; j<n; j++ )
scanf( "%d", &a[i][j] );
printf( "\nEnter the Second matrix" );
for( i=0; i<o; i++ )
for( j=0; j<p; j++ )
scanf( "%d", &b[i][j] );
printf( "\nThe First matrix is\n" );
for( i=0; i<m; i++ ) {
printf("\n");
for( j=0; j<n; j++ ) {
printf( "%d\t", a[i][j] );
}
}
printf( "\nThe Second matrix is\n" );
for( i=0; i<o; i++ ) {
printf("\n");
for( j=0; j<p; j++ ) {
printf( "%d\t", b[i][j] );
}
}
for( i=0; i<m; i++ )
for( j=0; j<p;j++ )
c[i][j] = 0;
for( i=0; i<m; i++ ) { //row of first matrix
for( j=0; j<p; j++ ) { //column of second matrix
sum = 0;
for( k=0; k<n; k++ )
sum = sum + a[i][k]*b[k][j];
c[i][j] = sum;
}
}
}
printf( "\nThe multiplication of two matrix is\n" );
for( i=0; i<m; i++ ) {
printf("\n");
for( j=0; j<p; j++ ) {
printf( "%d\t", c[i][j] );
}
}
return 0;
}
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