oj.uz

Submission #448769

# Submission time Handle Problem Language Result Execution time Memory
448769 2021-08-01T12:37:45 Z UltraFalcon Rack (eJOI19_rack) C++17
0 / 100
 1000 ms 204 KB 
#include <bits/stdc++.h>
#define int unsigned long long

using namespace std;

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    const int limit = (1e9) + 7;

    int n, k;
    cin >> n >> k;

    k--;
    int i = n-1;
    int r = 1;

    while (i >= 0) {
        if (k % 2 == 1) {
            //assert(i < 60);
            r = (r + ((1ll << i) % limit)) % limit;
        }
        k /= 2;
        i--;
    }
    cout << r % limit << "\n";
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1087 ms 204 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1087 ms 204 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1087 ms 204 KB Time limit exceeded
2 Halted 0 ms 0 KB -