Submission #406573

#	Time	Username	Problem	Language	Result	Execution time	Memory
406573		Ronin13	Rack (eJOI19_rack)	C++14	40 / 100	12 ms	6592 KiB

rack

#include<bits/stdc++.h>
#define ll long long
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define ull unsigned ll
#define pb push_back
#define epb emplace_back
#define INF 1e9+1;
using namespace std;

void solve(){
    int n,k;cin>>n>>k;
    vector<int>vec;
    vec.pb(1);
    vec.pb((1<<(n-1))+1);
    int j=(1<<(n-1));
    j/=2;
    while(j){
        vector<int>add;
        for(int i=0;i<vec.size();i++){
            add.pb(vec[i]+j);
        }
        for(int to:add)vec.pb(to);
        j/=2;
    }
    cout<<vec[k-1]<<' ';
}
int main(){
    int t;t=1;
    while(t--){
        solve();
    }
}

Compilation message (stderr)

rack.cpp: In function 'void solve()':
rack.cpp:22:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         for(int i=0;i<vec.size();i++){
      |                     ~^~~~~~~~~~~

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