Submission #534642

#	Time	Username	Problem	Language	Result	Execution time	Memory
534642		shrimb	Carnival (CEOI14_carnival)	C++17	20 / 100	125 ms	300 KiB

carnival

#include"bits/stdc++.h"
#define int long long
// #define endl '\n'
using namespace std;

int dsu[2000001];
int ans[2000001];

int Find (int x) {
	return dsu[x] == x ? x : dsu[x] = Find(dsu[x]);
}

void Union (int a, int b) {
	dsu[Find(a)] = Find(b);
}

bool Query (int a, int b) {
	cout << "2 " << a << " " << b << endl;
	int x;
	cin >> x;
	return x == 1;
}


signed main () {

	int n;
	cin >> n;
	set<pair<int,int>> s;
	vector<int> num;
	for (int i = 1 ; i <= n ; i++) s.insert({1, i}), dsu[i] = i;
	while (s.size() > 1) {
		auto [X, Y] = *--s.end();
		s.erase(--s.end());
		bool found = 0;
		for (auto [A, B] : s) {
			if (Query(Y, B)) {
				found = 1;
				Union(B, Y);
				s.erase({A, B});
				s.insert({A + X, Find(B)});
				break;
			}
		}
		if (!found) {
			num.push_back(Y);
		}
	}
	auto [X, Y] = *s.begin();
	num.push_back(Y);
	int c = 1;
	for (int i = 1 ; i <= n ; i++) if (dsu[i] == i) ans[i] = c++;
	cout << 0 << " ";
	for (int i = 1 ; i <= n ; i++) cout << ans[Find(i)] << " ";
}

• Subtask 1: 4 / 20
• Subtask 2: 4 / 20
• Subtask 3: 4 / 20
• Subtask 4: 4 / 20
• Subtask 5: 4 / 20