#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>

struct poz {
    int row, col;
};

void *prod(void *param);

int m, n, p;
int A[100][100];
int B[100][100];
int C[100][100];

int main(int argc, char *argv[]) {
    /// Citire
    FILE *fA = fopen(argv[1], "r");
    fscanf(fA, "%d %d", &m, &p);
    for(int i = 0; i < m; i++) {
        for(int j = 0; j < p; j++) {
            fscanf(fA, "%d", &(A[i][j]));
        }
    }
    FILE *fB = fopen(argv[2], "r");
    fscanf(fB, "%d %d", &p, &n);
    for(int i = 0; i < p; i++) {
        for(int j = 0; j < n; j++) {
            fscanf(fB, "%d", &(B[i][j]));
        }
    }

    pthread_attr_t attr;
    pthread_t workers[100][100];

    pthread_attr_init(&attr);
    for(int i = 0; i < m; i++) {
        for(int j = 0; j < n; j++) {
            poz param;
            param.row = i;
            param.col = j;
            pthread_create(&(workers[i][j]), &attr, prod, &param);
        }
    }
    for(int i = 0; i < m; i++) {
        for(int j = 0; j < n; j++) {
            pthread_join(&(workers[i][j]), NULL);
        }
    }
}

void *prod(void *param) {
    int row = (*poz)(param) -> row;
    int col = (*poz)(param) -> col;
    C[row][col] = 0;
    for(int i = 0; i < p; i++) {
        C[row][col] += A[row][p] * B[p][col];
    }
    pthread_exit(0);
}