Submission #262643

#	Time	Username	Problem	Language	Result	Execution time	Memory
262643		Cantfindme	Arcade (NOI20_arcade)	C++17	100 / 100	198 ms	17172 KiB

Arcade

#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int> pi;
#define f first
#define s second
#define FAST ios_base::sync_with_stdio(0); cin.tie(0);
const int maxn = 500010;

int n, buttons;
int T[maxn], A[maxn];
pi plots[maxn];

int32_t main() {
	FAST
	cin >> n >> buttons;
	for (int i =0;i<buttons;i++) cin >> T[i];
	for (int i =0;i<buttons;i++) cin >> A[i];
	
	for (int i =0;i<buttons;i++) plots[i] = pi(T[i] + A[i], T[i] - A[i] - buttons);
	
	sort(plots,plots+buttons);
	//for (int i =0;i<buttons;i++) cout << plots[i].f << " " << plots[i].s << "\n";
	
	vector <int> v;
	for (int i =0;i<buttons;i++) {
		int p = -plots[i].s;
		if (v.empty() or v.back() < p) v.push_back(p);
		else {
			int pos = lower_bound(v.begin(),v.end(),p) - v.begin();
			v[pos] = p;
		}
	}
	
	cout << v.size() << "\n";
}

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 21 / 21
• Subtask 5: 14 / 14
• Subtask 6: 20 / 20
• Subtask 7: 15 / 15