Submission #305161

#	Time	Username	Problem	Language	Result	Execution time	Memory
305161		vivaan_gupta	Exhibition (JOI19_ho_t2)	C++14	0 / 100	1 ms	384 KiB

joi2019_ho_t2

#include <algorithm>
#include <bitset>
#include <cassert>
#include <chrono>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <deque>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <limits>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <ratio>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#include <climits>
#define ll long long
#define ld long double
#define mp make_pair
#define pb push_back
#define in insert
#define vll vector<ll>
#define endl "\n"
#define pll pair<ll,ll>
#define f first
#define s second
#define FOR(i,a,b) for(int i=(a),_b=(b); i<=_b; i++)
#define int ll
#define sz(x) (ll)x.size()
#define all(x) (x.begin(),x.end())
using namespace std;

 
const ll INF = 1e12;
const ll N =(1e5+5); // TODO : change value as per problem
const ll MOD = 1e9+7;
// int s[N];
// int v[N];
int c[N];
pair<int,int> a[N];
bool cmp(pll i,pll j){
	if(i.s < j.s) return true;
	if(i.s > j.s) return false;
	return(i.f < j.f);
}
void solve(){
	int n;
	cin >> n;
	int m;cin>>m;
	for(int i=1;i<=n;i++){
		cin >> a[i].f >> a[i].s;
	}
	sort(a+1,a+n+1,cmp);
	
	for(int i =1;i<=m;i++) cin >> c[i];
	sort(c+1,c+m+1);
	int lo = 1;
	int ans = 0;
	for(int i=1;i<=n;i++){
		int hi = m;
		int idx = INF;
		int tmp = lo;
		while(lo <= hi){
			int mid = (lo + hi) >> 1ll;
			if(c[mid] >= a[i].f){
				idx = min(idx,mid);
				hi = mid-1;
			}
			else lo = mid+1;
		}
		if(idx == INF){
			lo = tmp;
		}
		else{
			ans++;
			lo = idx+1;
		}
	}
	cout << ans << endl;
}
signed main(){
 
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
     // freopen(".in","r",stdin);freopen(".out","w",stdout);
    
     ll tt=1;   
     // cin >> tt;
    while(tt--){    
        solve();
    }    
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50