Submission #499581

#	Time	Username	Problem	Language	Result	Execution time	Memory
499581		gromperen	Financial Report (JOI21_financial)	C++14	0 / 100	4085 ms	8188 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define ll long long

const int INF = 3e5+5;


int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);

	int n, d; cin >> n >> d;
	vector<int> a(n), b(n), r(n);
	map<int,int> compress;
	vector<int> dp(n+1, 1);
	for (int i = 0; i < n; ++i) {
		cin >> a[i];
		b[i] = a[i];
	}
	sort(b.begin(), b.end());
	for (int i =0; i < n; ++i) {
		if (!compress[b[i]]) {
			compress[b[i]] = compress.size();
		}
	}
	for (int i = 0; i < n; ++i) {
		a[i] = compress[a[i]];
	}

	for (int i = 0; i < n; ++i) {
		int cnt = 0;
		for (int j = i + 1; j < n; ++j) {
			if (a[j] <= a[i]) cnt = 0;
			else {
				cnt++;
				if (cnt == d+1) {
					r[i] = j;
					break;
				}
			}
		}
		if (cnt <= d) r[i] = n-1;

		//cout << r[i] << " ";
	}

	//cout << endl;

	int ans = 0;
	for (int i = 0; i < n; ++i) {
		for (int j = i + 1; j < r[i]; ++j) {
			if (a[i] < a[j]) {
				dp[j] = max(dp[j], dp[i] + 1);
			}

		}
		ans = max(ans, dp[i]);
		//cout << dp[i] << " ";
	}
	cout << ans << "\n";





	return 0;
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 14
• Subtask 3: 0 / 20
• Subtask 4: 0 / 12
• Subtask 5: 0 / 5
• Subtask 6: 0 / 35