Submission #615516

#	Time	Username	Problem	Language	Result	Execution time	Memory
615516		nohaxjustsoflo	Exhibition (JOI19_ho_t2)	C++17	100 / 100	60 ms	4428 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<ll,null_type,less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> order_set;
mt19937 mt_rand(chrono::high_resolution_clock::now().time_since_epoch().count());
//uniform_int_distribution<int> gen; ///(min, max)
//int random() {return gen(mt_rand);}
const int mxN=2e5+5;
const int mod=998244353;
const int mxlogN=40;
const int mxK=26;
const int inf=2e9;
const int K=600;
pair<int,int> a[mxN];
int b[mxN];
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n, m; cin >> n >> m;
    for(int i=0; i<n; i++) cin >> a[i].second >> a[i].first;
    sort(a,a+n);
    for(int i=0; i<m; i++) cin >> b[i];
    sort(b,b+m);
    int j=m-1;
    for(int i=n-1; i>=0; i--) if(~j&&a[i].second<=b[j]) j--;
    cout << m-1-j << "\n";
}

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