برنامه ضرب بعد از تغییر.txt

mulmatrix

#include <iostream.h>
#include <conio.h>

void mul(int m1[20][20], int m2[20][20], int m, int n, int q)

{
    int i,j,k,p[20][20];
    for(i=0; i<m; i++)
        for(j=0; j<q; j++)
        {
            p[i][j] =m1[i][0]*m2[0][j];;
            for(k=1; k<n; k++)
                p[i][j] += m1[i][k]*m2[k][j];
        }

    cout<<"\n The product: \n";
    for(i=0; i<m; i++)
    {
        for(j=0; j<q; j++)
        {
            cout<<p[i][j]<<" ";
        }
        cout<<"\n";
    }
}

main()
{
    int a[20][20], b[20][20], i,j,m,n,p,q;
    cout<<"Enter the row & col of matrix a:";
    cin>>m>>n;
    cout<<"\n Enter the element of matrix a:\n";
    for(i=0; i<m; i++)
        for(j=0; j<n; j++)
        {
            cout<<"\na["<<i+1<<"]"<<"["<<j+1<<"]:";
            cin>>a[i][j];
        }

    cout<<"Enter the row & col of matrix b:";
    cin>>p>>q;
    cout<<"\n Enter the element of matrix b:\n";
    for(i=0; i<p; i++)
        for(j=0; j<q; j++)
        {
            cout<<"\nb["<<i+1<<"]"<<"["<<j+1<<"]:";
            cin>>b[i][j];
        }
    /* Displaying Matrix1 and Matrix2 */
    clrscr();
    cout<<"matrix a:\n";
    for(i=0; i<m; i++)
    {
        for(j=0; j<n; j++)
           cout<<a[i][j]<<" ";
        cout<<"\n";

    }
    cout<<"\n";
    cout<<"matrix b:\n";
    for(i=0; i<p; i++)
    {
        for(j=0; j<q; j++)
           cout<<b[i][j]<<" ";
        cout<<"\n";

    }

    if (n==p)
        mul(a,b,m,n,q);
    else
        cout<<"mul not posible!";
    getch();
}