masynwe obliczenia lol

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main(int argc, char *argv[]){
    double **A,**B,**C;
    double suma,suma_kontrolna;
    int rows;
    clock_t begin_t,end_t;
    int i,j,k;

    rows=atoi(argv[1]);

    //inicjujemy macierze

    A=(double**)malloc(rows * sizeof(double*));
    B=(double**)malloc(rows * sizeof(double*));
    C=(double**)malloc(rows * sizeof(double*));

    for(i=0; i < rows; i++){
        A[i] = (double*)malloc(rows * sizeof(double));
        B[i] = (double*)malloc(rows * sizeof(double));
        C[i] = (double*)malloc(rows * sizeof(double));
    }

//wypelnaimy macierze wartosciami

    for(i=0; i < rows; i++){
        for(j=0; j < rows; j++){
        A[i][j] = (double)(1 + i * rows +j);
        B[i][j] = (double)(1 + i * rows +j +rows*rows);
        }
    }


    printf("A: %f %f \n",A[0][0],A[0][1]);
    printf("A: %f %f \n",A[1][0],A[1][1]);

    printf("B: %f %f \n",B[0][0],B[0][1]);
    printf("B: %f %f \n",B[1][0],B[1][1]);

    begin_t=clock();

    for(i=0; i<rows; i++){
       for(j=0; j<rows; j++){
               C[i][j]=0;
               for(=0; k<rows; k++){
                  C[i][j] += A[i][k] * B[k][j];
               }
           }
        }
        end_t=clock();


    printf("C: %f %f \n",C[0][0],C[0][1]);
    printf("C: %f %f \n",C[1][0],C[1][1]);
    printf("\n");

    suma_kontrolna=0;
    for(i=0;i<rows; i++){

    }
}
//kompilacja:
//gcc program.c -o progrx
//uruchomienie
//./progrx rows