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Thursday, 20 June 2013

Q.Write a Program to perform array multiplication( C programming).

Array Multiplication:
Solution:
#include<conio.h>
#include<stdio.h>

void main()
{
    int a[25][25],b[25][25],c[25][25],i,j,m,n,o,k;
    clrscr();
    printf("\nEnter row & column in A:\n");
        scanf("%d\n%d",&m,&n);
    printf("\nEnter the column value in B:\n");
        scanf("%d",&o);
    printf("\nEnter %d*%d value of A\n",m,n);
    for(i=0; i< m; i++)
        for(j=0; j< n; j++)
            scanf("%d",&a[i][j]);
    printf("\nEnter %d*%d value of B\n",n,o);
    for(i=0; i< n; i++)
        for(j=0; j< o; j++)
            scanf("%d",&b[i][j]);
    printf("\nA values:\n");
    for(i=0; i< m; i++)
    {
        for(j=0; j< n; j++)
            printf("%d\t",a[i][j]);
        printf("\n");
    }
    printf("\nB values:\n");
    for(i=0; i< n; i++)
    {
        for(j=0; j< o; j++)
            printf("%d\t",b[i][j]);
        printf("\n");
    }

    for(i=0; i< m; i++)
        for(k=0; k< o; k++)
        {
            c[i][k]=0;
            for(j=0; j< n; j++)
            {
            c[i][k]=c[i][k]+a[i][j]*b[j][k];
            }
        }
    printf("\nC values:\n");
    for(i=0; i< m; i++)
    {
        for(j=0; j< o; j++)
            printf("%d\t",c[i][j]);
        printf("\n");
    }
getch();
}

Sample Output:




Note: 
 " Hi I am a Learner of C/C++. I have done this program with my own Knowledge. There may be easy way to solve this programs. So I am sorry if this program in your point of view is too long. "

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