#include <iostream>
using namespace std;
typedef unsigned long long ll;
const ll modulo = 1000000007;
int n, k;
bool ans[1000005];
void recursiva(int level, int 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;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
256 KB |
Output is correct |
6 |
Correct |
4 ms |
256 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
256 KB |
Output is correct |
6 |
Correct |
4 ms |
256 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Incorrect |
4 ms |
256 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |