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Submission #1099543

# Submission time Handle Problem Language Result Execution time Memory
1099543 2024-10-11T14:39:03 Z vjudge1 Rack (eJOI19_rack) C++17
40 / 100
 1 ms 604 KB 
#include <bits/stdc++.h>
using namespace std;

string abc = "abcdefghijklmnopqrstuvwxyz";

#define int long long



signed  main(){
    int mod = 1e9+7;
    int n, k;
    cin >> n >> k;

    int ans = 0;


    vector<int> v(n);

    v[0]=1;
    for(int i = 1; i < n; i++){
        v[i]=(v[i-1]*2)%mod;
    }

    int aux = 1;
    for(int i = 0; i < min(n, (int) 63); i++){
        if((k-1)&aux){
            ans+=v[n-i-1];
        }
        aux*=2;
    }

    cout << ans+1 << endl;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 436 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 436 KB Output is correct
11 Incorrect 0 ms 348 KB Output isn't correct
12 Halted 0 ms 0 KB -