Submission #139688

#	Time	Username	Problem	Language	Result	Execution time	Memory
139688		duckmoon99	Exhibition (JOI19_ho_t2)	C++14	50 / 100	246 ms	10232 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace std::chrono;
using namespace __gnu_pbds;

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define fbo find_by_order
#define ook order_of_key

typedef long long ll;
typedef pair<ll,ll> ii;
typedef vector <ii> vii;
typedef vector<ll> vi;
typedef long double ld; 
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> pbds;
typedef set<int>::iterator sit;
typedef map<int,int>::iterator mit;
typedef vector<int>::iterator vit;

ll dp[2][1001],cc;
vi c;
vii paint;
ii s;

int main(){
	int n,m;cin>>n>>m;
	for(int i = 0; i < n; i++){
		cin >> s.se >> s.fi;
		paint.pb(s);
	}
	sort(paint.begin(),paint.end());
	for(int i = 0; i < m; i++){
		cin >> cc;
		c.pb(cc);
	}
	c.pb(0);
	sort(c.begin(),c.end());
	ll ans=0;
	for(int i = 0; i < n; i++){
		for(int j = 1; j <= m; j++){
			dp[i%2][j]=dp[(i+1)%2][j];
			if(paint[i].se<=c[j]) dp[i%2][j]=max(dp[i%2][j],dp[(i+1)%2][j-1]+1);
			ans=max(ans,dp[i%2][j]);
		}
	}
	cout<<ans<<'\n';
}

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