#include<iostream>
#include<vector>
#include<algorithm>
#define ep emplace
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const int inf=1e9+7;
const ll INF=1e18+7;
int a[200010],b[200010];
int c[200010],d[200010];
bool del[200010];
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin>>n;
for(int i=0;i<n;i++)
cin>>a[i]>>b[i];
for(int i=0;i<n;i++)
cin>>c[i]>>d[i];
int ans=n;
for(int i=0;i<1<<n;i++)
{
for(int j=0;j<n;j++)
del[j]=0;
bool fl=1;
vector<int>v;
for(int j=0;j<n&&fl;j++)
{
if(i>>j&1)
{
v.eb(j);
continue;
}
bool ok=0;
for(int k=0;k<n&&!ok;k++)
if(!del[k]&&b[k]<=d[j]&&a[k]==c[j])
del[k]=1,ok=1;
if(!ok)
fl=0;
}
if(!fl)
continue;
for(int j=0,k=0;j<n;j++)
if(!del[j])
if(b[j]>d[v[k++]])
fl=0;
if(fl)
ans=min(ans,__builtin_popcount(i));
}
cout<<ans<<endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
9 ms |
384 KB |
Output is correct |
3 |
Correct |
8 ms |
384 KB |
Output is correct |
4 |
Correct |
7 ms |
384 KB |
Output is correct |
5 |
Correct |
12 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
384 KB |
Output is correct |
7 |
Correct |
13 ms |
384 KB |
Output is correct |
8 |
Correct |
13 ms |
412 KB |
Output is correct |
9 |
Correct |
34 ms |
384 KB |
Output is correct |
10 |
Correct |
30 ms |
384 KB |
Output is correct |
11 |
Correct |
28 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
9 ms |
384 KB |
Output is correct |
3 |
Correct |
8 ms |
384 KB |
Output is correct |
4 |
Correct |
7 ms |
384 KB |
Output is correct |
5 |
Correct |
12 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
384 KB |
Output is correct |
7 |
Correct |
13 ms |
384 KB |
Output is correct |
8 |
Correct |
13 ms |
412 KB |
Output is correct |
9 |
Correct |
34 ms |
384 KB |
Output is correct |
10 |
Correct |
30 ms |
384 KB |
Output is correct |
11 |
Correct |
28 ms |
384 KB |
Output is correct |
12 |
Incorrect |
112 ms |
384 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
9 ms |
384 KB |
Output is correct |
3 |
Correct |
8 ms |
384 KB |
Output is correct |
4 |
Correct |
7 ms |
384 KB |
Output is correct |
5 |
Correct |
12 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
384 KB |
Output is correct |
7 |
Correct |
13 ms |
384 KB |
Output is correct |
8 |
Correct |
13 ms |
412 KB |
Output is correct |
9 |
Correct |
34 ms |
384 KB |
Output is correct |
10 |
Correct |
30 ms |
384 KB |
Output is correct |
11 |
Correct |
28 ms |
384 KB |
Output is correct |
12 |
Incorrect |
112 ms |
384 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
9 ms |
384 KB |
Output is correct |
3 |
Correct |
8 ms |
384 KB |
Output is correct |
4 |
Correct |
7 ms |
384 KB |
Output is correct |
5 |
Correct |
12 ms |
384 KB |
Output is correct |
6 |
Correct |
12 ms |
384 KB |
Output is correct |
7 |
Correct |
13 ms |
384 KB |
Output is correct |
8 |
Correct |
13 ms |
412 KB |
Output is correct |
9 |
Correct |
34 ms |
384 KB |
Output is correct |
10 |
Correct |
30 ms |
384 KB |
Output is correct |
11 |
Correct |
28 ms |
384 KB |
Output is correct |
12 |
Incorrect |
112 ms |
384 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |