Submission #1131213

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Source Code Expand

#include <cstdio>
#include <vector>
#include <algorithm>

using namespace std;

const int mod = 1000000007;

int main() {
  int n;
  scanf("%d", &n);
  int lx = -1;
  int totcnt = 0;
  long long ans = 1;
  for (int i = 0; i < n; i++) {
    int x;
    scanf("%d", &x);
    totcnt++;
    if (lx + 1 >= x) {
      ans *= totcnt;
      ans %= mod;
      totcnt--;
      continue;
    }
    lx += 2;
  }
  for (int i = 1; i <= totcnt; i++) {
    ans *= i;
    ans %= mod;
  }
  printf("%lld\n", ans);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:17:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &x);
                    ^

Judge Result