Simetricni redici matrica

#include <stdio.h>
#define MAX 100
int main () {
    int i,j,m,n,a[MAX][MAX],max=-9999999;
    scanf("%d %d", &m,&n);
    int b[m][n];
    for(i=0; i<m; i++) {
        for(j=0; j<n; j++){
            scanf("%d", &a[i][j]);
            b[i][j] = a[i][j];
        }
    }

    int suma1 = 0;
    int suma2 = 0;
    for(i=0; i<m/2; i++) {
        for(j=0; j<n; j++) {
            suma1 += a[i][j];
            suma2 += a[m-1-i][j];
        }
        if(suma1 > suma2) {
            for(j = 0; j < n; j++) {
                b[i][j] = a[m-1-i][j];
                b[m-1-i][j] = a[i][j];
            }
        }
    suma1 = 0;
    suma2 = 0;
    }
printf("Output: \n");
for(i = 0; i < m; i++) {
    for(j = 0; j < n; j++) {
        printf("%d ", b[i][j]);
    }
    printf("\n");
}


    return 0;
}