Submission #101098

#	Time	Username	Problem	Language	Result	Execution time	Memory
101098		Nnandi	Exhibition (JOI19_ho_t2)	C++14	100 / 100	83 ms	4480 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
#define ertek first
#define meret second
using namespace std;

typedef pair<int,int> pii;

const int maxn = 100005;
pii kep[maxn];
int keret[maxn];
int n, m, sol;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n>>m;
    for(int i=0;i<n;i++) {
        cin>>kep[i].meret>>kep[i].ertek;
    }
    for(int i=0;i<m;i++) {
        cin>>keret[i];
    }
    sort(keret,keret+m);

    sort(kep,kep+n);

    int it = n-1;
    for(int i=m-1;i>=0;i--) {
        while(it >= 0 && keret[i] < kep[it].meret) {
            it--;
        }
        if(it >= 0) {
            sol++; it--;
        }
    }
    cout<<sol<<endl;
    return 0;
}

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