Submission #1131930

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Source Code Expand

#include <cstdio>
#include <algorithm>

const int N = 512, INF = 1 << 27;

int n, row[N], col[N];
char a[N][N];

int main() {
  scanf("%d", &n);
  for (int i = 1; i <= n; ++i) scanf(" %s", a[i] + 1);
  for (int i = 1; i <= n; ++i)
    for (int j = 1; j <= n; ++j)
      if (a[i][j] == '#') ++row[i], ++col[j];
  if (*std::max_element(row + 1, row + n + 1) == 0) return puts("-1"), 0;
  int ans = INF;
  for (int i = 1; i <= n; ++i) {
    int cur = !col[i] + n - row[i];
    cur += n - std::count(col + 1, col + n + 1, n);
    ans = std::min(ans, cur);
  }
  printf("%d\n", ans == INF ? -1 : ans);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:10:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:11:54: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   for (int i = 1; i <= n; ++i) scanf(" %s", a[i] + 1);
                                                      ^

Judge Result