Submission

Score: 100

User: AugusEiEi

Problemset: ขายรถยนต์

Language: cpp

Time: 0.027 second

Submitted On: 2026-03-23 14:48:16

#include<bits/stdc++.h>
using namespace std;

int main(){
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n;cin>>n;
  vector<pair<int,int>>car(n);
  for(int i=0;i<n;i++){
    cin>>car[i].first>>car[i].second;
  }
  sort(car.begin(),car.end());
  int mx=car[0].second;
  int cnt=0;
  for(int i=1;i<n;i++){
    if(mx>car[i].second) cnt++;
    mx=max(mx,car[i].second);
  }
  cout<<cnt;
}