oj.uz

Submission #435306

# Submission time Handle Problem Language Result Execution time Memory
435306 2021-06-23T07:26:14 Z NintsiChkhaidze Rack (eJOI19_rack) C++14
40 / 100
 100 ms 15344 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define left (node<<1),l,((l+r)>>1)
#define right ((node<<1)|1),((l+r)>>1) + 1,r
#define s second
#define f first
#define int ll
using namespace std;
vector <int> v;
map <int,int> f;
main (){
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
    int n,k;
    cin>>n>>k;
    
    int a = (1<<(n - 1));
    v.pb(1);
    if (k == 1){
        cout<<1;
        return 0;
    }
    f[1] = 1;
    
    while(a){
        int id = 0;
        while(id < v.size() && v[id] + a <= (1<<n) && !f[v[id] + a]){
            f[v[id] + a] = 1;
            v.pb(v[id] + a);
            if (v.size() == k) {
                cout<<v[id] + a;
                return 0;
            }
            id++;
        }
        a/=2;
    }
}

Compilation message

rack.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main (){
      | ^~~~
rack.cpp: In function 'int main()':
rack.cpp:27:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         while(id < v.size() && v[id] + a <= (1<<n) && !f[v[id] + a]){
      |               ~~~^~~~~~~~~~
rack.cpp:30:26: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   30 |             if (v.size() == k) {
      |                 ~~~~~~~~~^~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 2 ms 460 KB Output is correct
8 Correct 16 ms 4292 KB Output is correct
9 Correct 83 ms 11736 KB Output is correct
10 Correct 100 ms 15344 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 2 ms 460 KB Output is correct
8 Correct 16 ms 4292 KB Output is correct
9 Correct 83 ms 11736 KB Output is correct
10 Correct 100 ms 15344 KB Output is correct
11 Incorrect 1 ms 332 KB Output isn't correct
12 Halted 0 ms 0 KB -