oj.uz

답안 #391890

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
391890 2021-04-20T05:04:40 Z lukameladze Exhibition (JOI19_ho_t2) C++14
0 / 100
 1 ms 204 KB 
# include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
using namespace std;
const int N=3e5+5;
long long ff,b[N],ri,le,mid,n,m,ans;
pair <long long , long long> a[N];
int check (int mid) {
     int ri=m;
     for (int i=mid; i>=1; i--) {
          ff=0;
         while (ri>0) {
              if (b[ri]>=a[i].s) {
          //         cout<<b[ri]<<" "<<a[i].s<<endl;
                   ri--;
                   ff=1;
                   break;
              }
              ri--;
         } 
         if (!ff) break;
     }
     if (!ff) return 0;
     else return 1;
}
int main() {
     cin>>n>>m;
     for (int i=1; i<=n; i++) {
          cin>>a[i].s>>a[i].f;
     }
     sort(a+1, a+n+1);
     for (int i=1; i<=m; i++) {
          cin>>b[i];
     }
     sort(b+1, b+m+1);
     le=1;
     ri=n;
     while (le<=ri) {
          int mid=(le+ri)/2;
        //  cout<<mid<<" "<<le<<" "<<ri<<endl;
          if (check(mid)) {
               le=mid+1;
               ans=mid;
          } else {
               ri=mid-1;
          }
     }
     cout<<ans<<endl;
}

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 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 Incorrect 1 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 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 Incorrect 1 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 50.0

# 결과 실행 시간 메모리 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 Incorrect 1 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -