Submission #787782

#	Time	Username	Problem	Language	Result	Execution time	Memory
787782		christinelynn	Exhibition (JOI19_ho_t2)	C++17	100 / 100	43 ms	5644 KiB

joi2019_ho_t2

#include<bits/stdc++.h>
#define ll long long
#define fi first
#define sec second
#define pb push_back
#define pqueue priority_queue
#define int long long
#define pii pair<int,int>
#define supercepat ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(0);
using namespace std;
int tc,ans=0,n,m;
pair<int,int> a[100005];
int c[100005];
main(){
  supercepat;
  cin>>n>>m;
  for(int i=1;i<=n;i++){
    cin>>a[i].sec>>a[i].fi;
  }
  for(int i=1;i<=m;i++) cin>>c[i];
  sort(a+1,a+n+1);
  sort(c+1,c+m+1);
  int i=n,j=m;
  while(i>0&&j>0){
//    cout<<i<<" "<<j<<endl;
    if(a[i].sec<=c[j]){
      ans++;
      i--;
      j--;
    }
    else{
      i--;
    }
  }
  cout<<ans<<endl;
}

Compilation message (stderr)

joi2019_ho_t2.cpp:14:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   14 | main(){
      | ^~~~

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50