Submission #2631743

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Source Code Expand

#include <cstdio>
#define rrep(i,n) for (int i = 1; i <= n; ++i)
using namespace std;

constexpr int MX = 100000, mod = 1000000007;
struct Fact {
  int d[MX+1];
  constexpr Fact(): d() {
    d[0] = 1;
    long long x = 1;
    rrep(i,MX) {
      x = (x*i)%mod;
      d[i] = x;
    }
  }
};
constexpr Fact F = Fact();

int main() {
  int n;
  scanf("%d", &n);
  printf("%d\n", F.d[n]);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:21:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^

Judge Result