Submission #523885

#	Time	Username	Problem	Language	Result	Execution time	Memory
523885		boykut	Longest beautiful sequence (IZhO17_subsequence)	C++14	23 / 100	6090 ms	2324 KiB

subsequence

#include <bits/stdc++.h>

using namespace std;

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	int n;
	cin >> n;
	int a[n];
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	int k[n];
	for (int i = 0; i < n; i++) {
		cin >> k[i];
	}
	int dp[n], p[n], mx = -1;
	fill(p, p + n, -1);
	for (int i = 0; i < n; i++) {
		dp[i] = 1;
		for (int j = 0; j < i; j++) {
			if (__builtin_popcount(a[i] & a[j]) == k[i] && dp[j] + 1 > dp[i]) {
				dp[i] = dp[j] + 1;
				p[i] = j;
			}
		}
		if (mx == -1 || dp[i] > dp[mx]) {
			mx = i;
		}
	}
	vector<int> ans;
	int v = mx;
	while (v != -1) {
		ans.push_back(1 + v);
		v = p[v];
	}
	cout << ans.size() << '\n';
	reverse(ans.begin(), ans.end());
	for (int v : ans)
		cout << v << ' ';

	return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 16 / 16
• Subtask 3: 0 / 17
• Subtask 4: 0 / 60