Submission #577775

#	Time	Username	Problem	Language	Result	Execution time	Memory
577775		tengiz05	Star Trek (CEOI20_startrek)	C++17	7 / 100	1 ms	212 KiB

startrek

#include <bits/stdc++.h>

using namespace std;
using i64 = long long;

constexpr int P = 1E9 + 7;

i64 power(i64 a, i64 b) {
    i64 res = 1;
    for (; b > 0; a = a * a % P, b /= 2) {
        if (b % 2) {
            res = res * a % P;
        }
    }
    return res;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n;
    i64 D;
    cin >> n >> D;
    
    cout << power(4, D) << "\n";
    
    return 0;
}

• 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