Submission #1271325

#	Time	Username	Problem	Language	Result	Execution time	Memory
1271325		cmiuc	Exhibition (JOI19_ho_t2)	C++20	0 / 100	0 ms	324 KiB

joi2019_ho_t2

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;
int dp[1<<17];

int main(){
	ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	int n, m, ans = 0;
	cin>>n>>m;

	vector<pair<int,int>> vec(n);
	vector<int> c(m);
	
	for (int i=0;i<n;i++)
		cin>>vec[i].second>>vec[i].first;
	sort(begin(vec), end(vec));

	for (int i=0;i<m;i++)
		cin>>c[i];
	sort(begin(c), end(c));

	for (int i=1;i<=n;i++)
		dp[i] = 2e9;
	dp[0] = -1;

	for (auto [b, a] : vec){
		int k = upper_bound(begin(c), end(c), a - 1) - begin(c);
		int u = upper_bound(dp, dp + n + 1, k) - dp;

		if (dp[u-1] >= m-1 or k == m)
			continue;
		dp[u] = max(k, dp[u-1] + 1);
		ans = max(ans, u);
	}
	cout<<ans<<'\n';
}

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