Submission #497486

#	Time	Username	Problem	Language	Result	Execution time	Memory
497486		Karabasan	Rack (eJOI19_rack)	C++17	40 / 100	4 ms	4544 KiB

rack

#include <bits/stdc++.h>
#define ll long long
#define fast1 ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define endl "\n"
using namespace std;
#pragma GCC optimize("Ofast")
#pragma GCC target("fma,sse,sse2,sse3,avx")
#pragma GCC optimize("unroll-loops")

int n,k;
vector<int> v;
void solve()
{
    cin>>n>>k;
    int deg=(1<<(n-1));
    v.push_back(1);
    while(v.size()<=(1<<(n-1)))
    {
        int a=v.size();
        for(int i=0;i<a;i++)
            v.push_back(v[i]+deg);
        deg/=2;
    }
    cout<<v[k-1];
}
signed main()
{
    //fast1
    int t=1;
    //cin>>t;
    while(t--)
    {
        solve();
    }
    return 0;
}

Compilation message (stderr)

rack.cpp: In function 'void solve()':
rack.cpp:17:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   17 |     while(v.size()<=(1<<(n-1)))
      |           ~~~~~~~~^~~~~~~~~~~~

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