Submission #237718

#	Time	Username	Problem	Language	Result	Execution time	Memory
237718		Dynamic_Cast	Rack (eJOI19_rack)	C++14	40 / 100	1085 ms	66448 KiB

rack

//#include <bits/stdc++.h> C++11
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cmath>
#include <stdio.h>
#include <time.h>
#include <iomanip>
#include <stdlib.h>
#include <list>
#include <stack>
#include <queue>
#include <climits>
#include <map>
#include <set>
#include <sstream>
using namespace std;
typedef long long ll;
typedef pair<int, int> pi;
typedef vector<int> vi;
#define PB push_back
#define MP make_pair
vi v;
int N;
int res = 0;
void result(int n, int s)
{
    int temp;
    if (n == 1)
    {
        temp = (1 + s) % 1000000007;
        v.PB(1 + s);
        temp = ll(pow(2, ll(N - 1)) + 1 + s) % 1000000007;
        v.PB(temp);
    }
    else
    {
        result(n - 1, s);
        result(n - 1, s + pow(2, N - n));
    }
}
/*int result(int index, int n, int place){
    if(n==0){
        return res;
    }
    if(log2(index)>log2(2*place+1)+n-1){
        res+=res+pow(2,N-n);
        return result(index,n-1,);
    }
    return result(index,n-1,place);

}*/
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    ll k;
    cin >> N >> k;
    //cout<<result(k,N,0)<<"\n";
    result(N, 0);
    /*for(int i=0;i<int(v.size());i++){
        cout<<v[i]<<" ";
    }*/
    cout << v[k - 1] << "\n";
}

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 0 / 60