[Kolokviumska] Matrica

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

void swap(int *a, int *b) {
    int temp = *a;
    *a = *b;
    *b = temp;
}

int main()
{
    int m, n, i, j;
    scanf("%d %d", &m, &n);

    int matr[m][n];

    for(i = 0; i < m; ++i) {
        for(j = 0; j < n; ++j) {
            scanf("%d", &matr[i][j]);
        }
    }

    int zbir1, zbir2, k;
    for(i = 0; i < m/2; ++i) {
        zbir1 = zbir2 = 0;
        for(j = 0; j < n; ++j) {
            zbir1 += matr[i][j];
            zbir2 += matr[n-i-1][j];
        }
        if(zbir1 > zbir2) {
            k = 0;
            while(k < m) {
                swap(&matr[i][k], &matr[n-i-1][k]);
                k++;
            }
        }
    }

    for(i = 0; i < m; ++i) {
        for(j = 0; j < n; ++j) {
            printf("%d ", matr[i][j]);
        }
        printf("\n");
    }

    return 0;
}