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Submission #644060

# Submission time Handle Problem Language Result Execution time Memory
644060 2022-09-23T17:25:28 Z perohero Rack (eJOI19_rack) C++14
100 / 100
 8 ms 320 KB 
#include <bits/stdc++.h>
#define int ll
 
using ll = long long;

const int MOD = 1e9 + 7;

signed main() {
  std::ios_base::sync_with_stdio(0);
  std::cin.tie(0);
  int n, k;
  std::cin >> n >> k;
  int answer = 0;
  k--;
  for (int i = 1; i <= n; i++) {
    answer = (answer * 2 % MOD + k % 2) % MOD;
    k /= 2;
  }
  answer++;
  std::cout << answer % MOD;
  return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 320 KB Output is correct
15 Correct 8 ms 316 KB Output is correct