Submission #129365

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
129365	2019-07-12 06:43:49	tuanasanh	Exhibition (JOI19_ho_t2)	C++11	100 / 100	70 ms	5120 KiB

joi2019_ho_t2

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#include<bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#define ii pair<int,int> 
using namespace std;
int n,m,v,s;
vector<ii> r;
vector<int> c;
signed main(){
//  freopen(".inp","r",stdin);
//  freopen(".out","w",stdout);
  ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  cin>>n>>m;
  for(int i=0;i<n;i++){
    cin>>s>>v;
    r.push_back({v,s});
  }
  for(int i=0;i<m;i++){
    cin>>s;
    c.push_back(s);
  }
  sort(r.begin(),r.end());
  sort(c.begin(),c.end());
  int lst=m-1;
  for(int i=n-1;i>=0;i--){
    if(r[i].second<=c[lst]) lst--;
    if(lst<0) break;
  }
  cout<<m-lst-1;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50