Submission #19879

#	Time	Username	Problem	Language	Result	Execution time	Memory
19879		yongwhan	동전 (kriii4_E)	C++14	0 / 100	0 ms	1708 KiB

D

#include<bits/stdc++.h>
using namespace std;

const int mod=1e9+7;

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);

  int n; cin>>n; n-=2;
  long long ret=1;
  for (int i=0; i<n; i++)
    ret=(ret*2)%mod;
  cout << ret << endl;
  return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95