oj.uz

Submission #464465

# Submission time Handle Problem Language Result Execution time Memory
464465 2021-08-13T09:07:22 Z kilikuma Rack (eJOI19_rack) C++14
100 / 100
 19 ms 15532 KB 
#include <bits/stdc++.h> 
using namespace std;
long long MOD = (1000*1000*1000)+7; 
long long puis(int a, int b) {
  long long res =1 ;
  for (int i=0;i<b;i++) res = res*a; 
  return res; 
}
long long val(int niveau, long pos) {
  if (niveau == 1) {
    if (pos == 1) return 1; 
    else return 2; 
  }
  if (niveau >= 61) {
    long long res = val(niveau-1, pos); 
    res = ((res*2) - 1)%MOD ; 
    return res; 
  }
  if (pos <= (puis(2, niveau-1))) {
    long long res = val(niveau-1, pos); 
    res = ((res*2)- 1)%MOD; 
    return res; 
  }
  else {
    pos -= puis(2, niveau-1); 
    long long res = val(niveau-1, pos); 
    res = (res*2)%MOD; 
    return res; 
  }
}
int main() {
  long long n, k; 
  cin >> n >> k; 
  cout << val(n, k); 
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 2 ms 1100 KB Output is correct
15 Correct 19 ms 15532 KB Output is correct