Submission #102518

#	Time	Username	Problem	Language	Result	Execution time	Memory
102518		jhnah917	조화행렬 (KOI18_matrix)	C++14	29 / 100	307 ms	7024 KiB

matrix

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

typedef pair<int, int> p;
typedef pair<int, p> pp;

void f2(){
	int n; cin >> n;
	vector<p> v(n);
	for(int i=0; i<n; i++) cin >> v[i].x;
	for(int i=0; i<n; i++) cin >> v[i].y;
	sort(v.begin(), v.end());
	
	int ans = 0;
	vector<int> lis(1, -1);
	for(auto &i : v){
		int now = i.y;
		if(now > lis.back()) lis.push_back(now), ans++;
		else{
			auto it = lower_bound(lis.begin(), lis.end(), now);
			*it = now;
		}
	}
	cout << ans;
}

void f3(){
	int n; cin >> n;
	vector<pp> v(n);
	for(int i=0; i<n; i++) cin >> v[i].x;
	for(int i=0; i<n; i++) cin >> v[i].y.x;
	for(int i=0; i<n; i++) cin >> v[i].y.y;
	sort(v.begin(), v.end());
	
	vector<int> dp(n, 0);
	dp[0] = 1;
	int ans = 0;
	for(int i=2; i<n; i++){
		int now = 0;
		for(int j=i-1; j>=0; j--){
			if(v[j].y.x < v[i].y.x && v[j].y.y < v[i].y.y) now = max(now, dp[j]);
		}
		dp[i] = now+1;
		ans = max(ans, dp[i]);
	}
	cout << ans;
}

int main(){
	int n; cin >> n;
	if(n == 2){
		f2();
	}else{
		f3();
	}
}

• Subtask 1: 14 / 14
• Subtask 2: 0 / 9
• Subtask 3: 15 / 15
• Subtask 4: 0 / 62