第2个测试点，本地输出与正确答案相同的6，而一交上去就说我输出‘-’

另外还有3个点RE了，也是不知原因，调了很久但不知错哪了，能否帮忙看一下，谢谢

记录

第2个测试点

6
17
1 0 0 0 0 0 
0 0 1 0 0 0 
0 0 0 0 -1 1 
0 1 0 0 0 0 
0 0 0 1 0 0 
0 0 0 0 1 -1 
1 0 -1 0 0 0 
0 0 -1 0 -1 -1 
1 0 -1 0 0 0 
0 0 1 0 0 -1 
0 -1 0 0 1 0 
0 0 0 -1 0 0 
0 0 -1 -1 -1 0 
-1 0 -1 -1 -1 -1 
1 0 0 0 0 -1 
-1 0 0 0 0 0 
0 -1 0 -1 0 -1 

代码

#include <bits/stdc++.h>
const int Maxn = 11;
const int Maxm = 105;
const int Maxs = (1 << Maxn) + 5;
using namespace std;
long long n, m, a[Maxn][Maxm], f[Maxs];
int main() {
  scanf("%lld %lld", &n, &m);
  for (int i = 1; i <= m; ++i) {
    for (int j = 0; j < n; ++j) {
      scanf("%lld", &a[i][j]);
    }
  }
  fill(f, f + (1 << n), 1e9);
  f[(1 << n) - 1] = 0;
  for (int s = (1 << n) - 1; s >= 0; --s) {
    for (int i = 1; i <= m; ++i) {
      int t = s;
      for (int j = 0; j < n; ++j) {
        if (a[i][j] == 1 && s & (1 << j)) {
          t ^= 1 << j;
        } else if (a[i][j] == -1 && !(s & (1 << j))) {
          t ^= 1 << j;
        }
      }
      f[t] = min(f[t], f[s] + 1);
    }
  }
  if (f[0] == (long long)1e9)
    printf("-1\n");
  else
    printf("%lld\n", f[0]);
   return 0;
}

f数组用下标存状态，按照按钮进行转移