#include <bits/stdc++.h>
using namespace std;
const int nx=2e5+5;
mt19937 rng(time(0));
int n, r, res=INT_MAX, st;
vector<int> p(2*nx), pw(2*nx), npw(2*nx);
int main()
{
cin.tie(NULL)->sync_with_stdio(false);
cin>>n>>r;
r=(r%n)+2*n;
for (int i=0; i<2*n; i++) cin>>p[i];
if (n>200) return cout<<n, 0;
for (int i=0; i<2*n; i+=2)
{
pw[i]=p[0];
for (int j=0; j<i; j++) pw[j]=p[j+1];
for (int j=i+1; j<2*n; j++) pw[j]=p[j];
for (int t=0; t<r; t++)
{
for (int j=2; j<2*n; j+=2)
{
if (pw[j]<pw[j+1]) npw[j-2]=pw[j], npw[j+1]=pw[j+1];
else npw[j-2]=pw[j+1], npw[j+1]=pw[j];
}
if (pw[0]<pw[1]) npw[1]=pw[0], npw[2*(n-1)]=pw[1];
else npw[1]=pw[1], npw[2*(n-1)]=pw[0];
for (int j=0; j<2*n; j++) pw[j]=npw[j];
}
for (int j=0; j<2*n; j++)
{
if (pw[j]==p[0])
{
if (j/2<=res) res=j/2, st=(i/2)+1;
}
}
}
cout<<st;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
14 ms |
4956 KB |
Output is correct |
| 4 |
Incorrect |
2 ms |
4956 KB |
Output isn't correct |
| 5 |
Correct |
3 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
39 ms |
4956 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
48 ms |
4956 KB |
Output is correct |
| 3 |
Incorrect |
3 ms |
4956 KB |
Output isn't correct |
| 4 |
Incorrect |
3 ms |
4956 KB |
Output isn't correct |
| 5 |
Correct |
19 ms |
5172 KB |
Output is correct |
| 6 |
Correct |
37 ms |
4956 KB |
Output is correct |
| 7 |
Incorrect |
3 ms |
4956 KB |
Output isn't correct |
| 8 |
Incorrect |
6 ms |
4956 KB |
Output isn't correct |
| 9 |
Correct |
6 ms |
4956 KB |
Output is correct |
| 10 |
Incorrect |
2 ms |
5172 KB |
Output isn't correct |
| 11 |
Incorrect |
4 ms |
5168 KB |
Output isn't correct |
| 12 |
Incorrect |
2 ms |
4956 KB |
Output isn't correct |
| 13 |
Incorrect |
14 ms |
4956 KB |
Output isn't correct |
| 14 |
Incorrect |
3 ms |
4952 KB |
Output isn't correct |
| 15 |
Incorrect |
5 ms |
5168 KB |
Output isn't correct |
| 16 |
Correct |
49 ms |
4956 KB |
Output is correct |
| 17 |
Incorrect |
3 ms |
4956 KB |
Output isn't correct |
| 18 |
Incorrect |
2 ms |
4956 KB |
Output isn't correct |
| 19 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 20 |
Correct |
4 ms |
4956 KB |
Output is correct |
| 21 |
Incorrect |
6 ms |
4956 KB |
Output isn't correct |
| 22 |
Correct |
9 ms |
4956 KB |
Output is correct |
| 23 |
Incorrect |
23 ms |
4952 KB |
Output isn't correct |
| 24 |
Correct |
78 ms |
4952 KB |
Output is correct |
| 25 |
Incorrect |
2 ms |
4952 KB |
Output isn't correct |
| 26 |
Incorrect |
2 ms |
4956 KB |
Output isn't correct |
| 27 |
Incorrect |
4 ms |
4956 KB |
Output isn't correct |
| 28 |
Incorrect |
26 ms |
5208 KB |
Output isn't correct |
| 29 |
Incorrect |
2 ms |
4956 KB |
Output isn't correct |
| 30 |
Incorrect |
2 ms |
4992 KB |
Output isn't correct |
| 31 |
Incorrect |
4 ms |
4956 KB |
Output isn't correct |
| 32 |
Incorrect |
21 ms |
5176 KB |
Output isn't correct |
| 33 |
Correct |
45 ms |
4956 KB |
Output is correct |
| 34 |
Correct |
74 ms |
4956 KB |
Output is correct |
| 35 |
Incorrect |
3 ms |
4952 KB |
Output isn't correct |
| 36 |
Incorrect |
3 ms |
4956 KB |
Output isn't correct |
| 37 |
Incorrect |
4 ms |
4956 KB |
Output isn't correct |
| 38 |
Incorrect |
4 ms |
5112 KB |
Output isn't correct |
| 39 |
Correct |
38 ms |
4952 KB |
Output is correct |
| 40 |
Incorrect |
4 ms |
4956 KB |
Output isn't correct |
| 41 |
Incorrect |
4 ms |
5168 KB |
Output isn't correct |
| 42 |
Incorrect |
2 ms |
4956 KB |
Output isn't correct |
| 43 |
Incorrect |
4 ms |
4956 KB |
Output isn't correct |
| 44 |
Incorrect |
3 ms |
4952 KB |
Output isn't correct |
| 45 |
Incorrect |
6 ms |
5016 KB |
Output isn't correct |
| 46 |
Incorrect |
7 ms |
4952 KB |
Output isn't correct |
| 47 |
Incorrect |
23 ms |
5168 KB |
Output isn't correct |
