oj.uz

Submission #269754

# Submission time Handle Problem Language Result Execution time Memory
269754 2020-08-17T09:42:09 Z JuliusMieliauskas Rack (eJOI19_rack) C++14
40 / 100
 1 ms 384 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
#define all(x) x.begin(), x.end()
#define vi vector<int>
#define vll vector<long long>
#define MOD 1000000007
#define endl '\n'
 
typedef long long ll;
 
void print(vi v){
    cout<<"Contents of vector:\n";
    for(auto x : v) cout<<x<<" ";
    cout<<endl<<endl;
}
 
void solve(){
    int n, k; cin>>n>>k;
 
    int l = 1, r = pow(2, n);
    while(true){
        if(r - l == 0) break;
 
        int mid = (r+l) / 2;
        //cout<<"l: "<<l<<"  r: "<<r<<"  mid: "<<mid<<endl;
        if(k%2){
            r = mid;
        } else {
            l = mid;
        }
 
        k = ceil(k*1.0 / 2.0);
    }
    cout<<r+1<<endl;
}
 
int main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    //ifstream cin("input.txt"); ofstream cout("output.txt");///cia failai
 
    //int T; cin>>T;
    int T = 1;
 
    for(int it = 1; it<=T; it++){
        solve();
 
    }
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Incorrect 1 ms 384 KB Output isn't correct
12 Halted 0 ms 0 KB -