oj.uz

Submission #237667

# Submission time Handle Problem Language Result Execution time Memory
237667 2020-06-08T08:17:43 Z tb_03 Rack (eJOI19_rack) C++14
100 / 100
 9 ms 384 KB 
#include <iostream>
 
using namespace std;
typedef unsigned long long ll;
 
const ll modulo = 1000000007;
ll n, k;
bool ans[1000005];
 
void recursiva(ll level, ll casacos)
{
  if (level == n)
    return;
 
  if (casacos % 2 == 0)
    recursiva(level + 1, casacos / 2);
  else
  {
    ans[level] = true;
    recursiva(level + 1, (casacos - 1) / 2);
  }
}
 
int main()
{
  cin >> n >> k;
  recursiva(0, k - 1);
  ll res = 0;
 
  for (int i = 0; i < n; i++)
    res = ((res << 1) | ans[i]) % modulo;
 
  cout << res + 1 << endl;
  return 0;
}

Compilation message

rack.cpp: In function 'int main()':
rack.cpp:30:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < n; i++)
                   ~~^~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 256 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 9 ms 384 KB Output is correct