multiplication_matrix.c

#include<stdio.h>
int main(){
    //  First Matrix
    int row1,col1;
    printf("Input rows and columns for First matrix: ");
    scanf("%d %d",&row1,&col1);
    int A[row1][col1];
    for (int i = 0; i < row1; i++)
    {
        for (int j = 0; j < col1; j++)
        {
            printf("Element [%d][%d]: ",i,j);
            scanf("%d", &A[i][j]);
        }
        
    }
    //  Second Matrix
    int row2,col2;
    printf("Input rows and columns for First matrix: ");
    scanf("%d %d",&row2,&col2);
    // Inputting the Wrong row.
    if (col1 != row2)
    {
        printf("OOPS!!! Your Matrix is not suitable for Multiplication!!!!.");
        return 0;
    }
    int B[row2][col2];
    for (int i = 0; i < row2; i++)
    {
        for (int j = 0; j < col2; j++)
        {
            printf("Element [%d][%d]: ",i,j);
            scanf("%d", &B[i][j]);
        }
        
    }
    // Printing the Matrix.
    printf("Your first Matrix is:\n");
    for (int i = 0; i < row1; i++)
    {
        for (int j = 0; j < col1; j++)
        {
            printf("%d ",A[i][j]);
        }
        printf("\n");
        
    }
    printf("Your Second Matrix is:\n");
    for (int i = 0; i < row2; i++)
    {
        for (int j = 0; j < col2; j++)
        {
            printf("%d ",B[i][j]);
        }
        printf("\n");
        
    }
    // Multiplying Matrix
    int new[row1][col2];
    for (int i = 0; i < row1; i++)
    {
        for (int j = 0; j < col2; j++)
        {
            int sum=0;
            for (int k = 0; k < row2; k++)
            {
                sum = sum + (A[i][k] * B[k][j]);
            }
            new[i][j] = sum;
            
        }
        
    }
    // Printing Final Matrix.
    printf("Your Final Matrix is:\n");
    for (int i = 0; i < row1; i++)
    {
        for (int j = 0; j < col2; j++)
        {
            printf("%d ",new[i][j]);
        }
        printf("\n");
        
    }
    return 0;
}