MatrixMul_shortxshort, C (gcc)

Language: Layout:

//gcc 5.4.0

#include  <stdio.h>
short a[2][2], b[2][2]; 
int c[2][2];

int main(void)
{
 int i, j, k=8;
 int sum;
    
    for (i=0;i<2; i++) {
        for (j=0;j<2;j++){
            a[i][j] = i+j+1;
        }
    }
    
    for (i=0;i<2; i++) {
        for (j=0;j<2;j++){
            b[i][j] = (i+j+1)*k;
        }
    }
    
    for (i=0;i<2;i++){
        for (j=0; j<2; j++){
            for (k=0;k<2;k++){
                sum = sum + a[i][k] * b[k][j];
            }
                 c[i][j] = sum; 
                 sum=0;
        }
    }        
                
    printf("Matrix A:\n");
    for (i=0;i<2; i++) {
        for (j=0;j<2;j++){
            printf("%d\t",a[i][j]);
        }
        printf("\n");
    }
    
    printf("Matrix B:\n");
    for (i=0;i<2; i++) {
        for (j=0;j<2;j++){
            printf("%d\t",b[i][j]);
        }
        printf("\n");
    }

printf("\nAxB:\n");
    for (i=0;i<2; i++) {
        for (j=0;j<2;j++){
            printf("%d\t",c[i][j]);
        }
        printf("\n");
    }
    
    return 0;
}

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Compilation time: 0.13 sec, absolute running time: 0.08 sec, cpu time: 0.01 sec, memory peak: 3 Mb, absolute service time: 0,22 sec