Submission #701509

#	Time	Username	Problem	Language	Result	Execution time	Memory
701509		PCTprobability	Star Trek (CEOI20_startrek)	C++14	7 / 100	1 ms	340 KiB

startrek

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll mod = 1000000007;
#define fi first
#define se second
ll modPow(ll a,ll b,ll c){
  ll r=1;
  while(b){
    if(b&1) (r*=a)%=mod;
    (a*=a)%=mod;
    b/=2;
  }
  return r;
}
int main(){
  ll n,d;
  cin>>n>>d;
  assert(n==2);
  cout<<modPow(4,d,mod)<<endl;
}

• Subtask 1: 0 / 0
• Subtask 2: 7 / 7
• Subtask 3: 0 / 8
• Subtask 4: 0 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 15