MULTIPLICATION OF MATRICES

#include<stdio.h>

#include<conio.h>

 

void main()

{

  int a[5][5],b[5][5],c[5][5],i,j,k,sum=0,m,n,o,p;

  clrscr();

  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]);

            }

  }

  getch();

}