제출 #1039554

#제출 시각아이디문제언어결과실행 시간메모리
1039554tamir1Exhibition (JOI19_ho_t2)C++17
50 / 100
147 ms13772 KiB
#include<bits/stdc++.h>
#define ff first
#define ss second
using namespace std;
int n,m,c[100005],i,j,dp[1005][1005];
pair<int,int> p[100005];
bool cmp(pair<int,int> a,pair<int,int> b){
	if(a.ss==b.ss) return a.ff<b.ff;
	return a.ss<b.ss;
}
int main(){
	cin >> n >> m;
	for(i=1;i<=n;i++){
		cin >> p[i].ff >> p[i].ss;
	}
	for(i=1;i<=m;i++){
		cin >> c[i];
	}
	sort(p+1,p+n+1,cmp);
	sort(c+1,c+m+1);
	for(i=1;i<=m;i++){
		for(j=1;j<=n;j++){
			if(c[i]>=p[j].ff) dp[i][j]=dp[i-1][j-1]+1;
			else dp[i][j]=dp[i][j-1];
		}
	}
	cout << dp[m][n];
}
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