Submission

Score: 100

User: nemuchannnUwU

Problemset: ขายรถยนต์

Language: cpp

Time: 0.025 second

Submitted On: 2025-10-17 12:01:30

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int main(){
	cin.tie(nullptr)->sync_with_stdio(0);
	ll n;
    cin >> n;
    vector<pair<ll,ll>> cars(n);
    for (ll i = 0; i < n; i++) {
        cin >> cars[i].first >> cars[i].second;
    }
    ll cnt = 0;
    ll max_vi = 0;
	for (ll i = n-1; i >= 0; i--) {
        ll price = cars[i].first;
        ll perf = cars[i].second;
        if (perf < max_vi) {
            cnt++;
        } else {
            max_vi = perf;
        }
    }
    cout << cnt;
    return 0;
}