Submission #637489

#	Time	Username	Problem	Language	Result	Execution time	Memory
637489		ksu2009en	Rack (eJOI19_rack)	C++17	40 / 100	157 ms	102400 KiB

rack

#include <iostream>
#include <vector>
#include <string>
#include <math.h>
#include <cmath>
#include <iomanip>
#include <cstdio>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <deque>
#include <bitset>
#include <cstring>

using namespace std;
typedef long long ll;


int main(){
    ll n, k;
    cin >> n >> k;
    
    vector<ll>a = {1, 2};
    
    for(int i = 1; i < n; i++){
        vector<ll>b;
        
        ll add = (1 << i);
        
        for(auto j: a){
            b.push_back(j);
            b.push_back(j + add);
        }
        
        a = b;
    }
    /*
    for(auto i: a)
        cout << i << ' ';
    cout << endl;
     */
    
    cout << a[k - 1] << endl;
     
    return 0;
}

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