oj.uz

Submission #622628

# Submission time Handle Problem Language Result Execution time Memory
622628 2022-08-04T12:46:43 Z froxyy Rack (eJOI19_rack) C++14
40 / 100
 107 ms 102400 KB 
#include <bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
typedef long long ll;typedef long double ld;typedef pair<int,int> pii;
#define F first
#define S second
#define PB push_back
#define MP make_pair
const ll mod = 1e9+7, N = 2e6+7, M = 2e6+7, INF = INT_MAX/10;
ll powe(ll x, ll y){ x = x%mod, y=y%(mod-1);ll ans = 1;while(y>0){if (y&1){ans = (1ll * x * ans)%mod;}y>>=1;x = (1ll * x * x)%mod;}return ans;}




void solve(){
	ll n, k;
    cin >> n >> k;

    vector<ll> v = {1};
    vector<ll> ans = {1};
    ll x = pow(2, n-1);
    while(x >= 1 || ans.size() < k)
    {
        for(size_t i=0; i<v.size(); i++)
            ans.PB(v[i] + x);
        
        x /= 2;
        for(size_t i=v.size(); i<ans.size(); i++)
            v.PB(ans[i]);
    }

    cout << ans[k-1] << '\n';

    //for(size_t i=0; i<ans.size(); i++)
        //cout << ans[i] << ' ';   
}




signed main(){
    fast;
    int t = 1;
    //cin >> t;
    while(t--){
    	solve();
    }
    return 0;
}

Compilation message

rack.cpp: In function 'void solve()':
rack.cpp:22:32: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   22 |     while(x >= 1 || ans.size() < k)
      |                     ~~~~~~~~~~~^~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 320 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 320 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 2 ms 1484 KB Output is correct
9 Correct 4 ms 4668 KB Output is correct
10 Correct 22 ms 16940 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 320 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 2 ms 1484 KB Output is correct
9 Correct 4 ms 4668 KB Output is correct
10 Correct 22 ms 16940 KB Output is correct
11 Runtime error 107 ms 102400 KB Execution killed with signal 9
12 Halted 0 ms 0 KB -