oj.uz

답안 #969426

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
969426 2024-04-25T06:49:41 Z HasanV11010238 Rack (eJOI19_rack) C++17
40 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mod 1000000007
int am = 0;
ll binpow(ll a, ll b){
    ll res = 1;
    if (b == -1){
        return 0;
    }
    while (b != 0){
        if (b % 2 == 0){
            b /= 2;
            a *= a;
            if (a >= mod){
                am++;
            }
            a %= mod;
        }
        else{
            b -= 1;
            res *= a;
            if (res >= mod){
                am++;
            }
            res %= mod;
        }
    }
    return res;
}
vector<vector<ll>> ve;
ll ans = 1;
ll f(ll n, ll k, ll va){
    ll val = 0;
    if (n == 0){
        return 0;
    }
    am = 0;
    ll po = binpow(2, n - 1);
    if ((am == 0 && k >= po)){
        val += binpow(2, va);
        ve.push_back({n - 1, k - po, va + 1});
        ans += val;
        return 0;
    }
    else if ((am == 1 && k >= po * mod)){
        val += binpow(2, va);
        ve.push_back({n - 1, k - po * mod, va + 1});
        ans += val;
        return 0;
    }
    ve.push_back({n - 1, k, va + 1});
    ans += val;
    return 0;
}
int main(){
    ll n, k;
    cin>>n>>k;
    k--;
    ve.push_back({n, k, 0});
    for (int i = 0; i < ve.size(); i++){
        f(ve[i][0], ve[i][1], ve[i][2]);
        ans %= mod;
    }
    cout<<ans;
}

Compilation message

rack.cpp: In function 'int main()':
rack.cpp:61:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |     for (int i = 0; i < ve.size(); i++){
      |                     ~~^~~~~~~~~~~

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct

Subtask #3
0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Incorrect 0 ms 348 KB Output isn't correct
13 Halted 0 ms 0 KB -