ucitaj matricu

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int countLines(FILE *file) {
    int lines = 0;
    int c;
    while (EOF != (c = fgetc(file))) {
        if (c == '\n') {
            ++lines;
        }
    }
    rewind(file);
    return lines;
}

int main(void) {
    int mat[5][5];
    FILE * fajl = fopen("matrica.txt", "r");
    if (fajl == NULL) {
        printf("Greska");
        return 0;
    }
    int dim = countLines(fajl);
    printf("%d\n\n", dim);
    for (int i = 0; i < dim; i++)
    {
        for (int j = 0; j < dim; j++)
        {
            if (!fscanf(fajl, "%d", &mat[i][j])) {
                break;
            }
        }
    }
    for (int i = 0; i < dim; i++)
    {
        for (int j = 0; j < dim; j++)
        {
            printf("mat[%d][%d] = %d\t", i, j, mat[i][j]);
        }
        printf("\n");
    }

    return 0;

}