oj.uz

Submission #796510

# Submission time Handle Problem Language Result Execution time Memory
796510 2023-07-28T13:01:00 Z Godgift42 Rack (eJOI19_rack) C++14
100 / 100
 4 ms 300 KB 
#include <bits/stdc++.h>
using namespace std;

int main(){
    int n;
    cin >> n;
    unsigned long long k;
    cin >> k;
    unsigned long long ans=0;
    for(int i=0;i<n;i++){
        if((k&1)==0){
            k=k/2;
            ans = (ans << 1)%1000000007;
            ans++;
        }
        else{
            k=k/2+1;
            ans = (ans << 1)%1000000007;
        }
    }
    cout << (ans+1)%1000000007 << "\n";
    return 0;
}

Subtask #1
20.0 / 20.0

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

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 300 KB Output is correct
14 Correct 1 ms 300 KB Output is correct
15 Correct 4 ms 212 KB Output is correct