oj.uz

Submission #991468

# Submission time Handle Problem Language Result Execution time Memory
991468 2024-06-02T09:39:27 Z alex_2008 Beech Tree (IOI23_beechtree) C++17
31 / 100
 210 ms 30672 KB 
#include "beechtree.h"
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <map>
#include <set>
#include <queue>
using namespace std;
const int N = 2e5 + 10;
vector <vector<pair<int, int>>> G;
vector <pair<int, int>> get_subtree(int v, int c) {
	vector <pair<int, int>> cur;
	cur.push_back({ v, c });
	for (auto it : G[v]) {
		for (auto& j : get_subtree(it.first, it.second)) {
			cur.push_back(j);
		}
	}
	return cur;
}
bool check(vector <pair<int, int>>& w, vector <int>& P, vector <int>& C) {
	map <int, int> mp;
	for (int i = 1; i < (int)w.size(); i++) {
		if (P[w[i].first] != w[mp[w[i].second]].first) return false;
		mp[w[i].second]++;
	}
	return true;
}
bool cmp(set <int> x, set <int> y) {
	return (int)x.size() > (int)y.size();
}
vector <int> beechtree(int N, int M, vector <int> P, vector <int> C) {
	bool subtask1 = (N <= 8);
	bool subtask2 = true;
	bool subtask3 = true;
	bool subtask4 = true;
	bool subtask5 = (N <= 200);
	G.clear();
	G.resize(N);
	map <int, int> mp;
	for (int i = 1; i < N; i++) {
		if (P[i] != (i - 1)) {
			subtask2 = false;
		}
		G[P[i]].push_back({ i, C[i] });
		mp[C[i]]++;
		if (P[i] != 0 && P[P[i]] != 0) {
			subtask3 = false;
		}
	}
	for (auto it : mp) {
		if (it.second > 2) {
			subtask4 = false;
		}
	}
	if (subtask1) {
		vector <int> ret = {};
		for (int i = 0; i < N; i++) {
			vector <pair<int, int>> w = get_subtree(i, C[i]);
			sort(w.begin() + 1, w.end());
			bool ch = false;
			if (check(w, P, C)) ch = true;
			while (next_permutation(w.begin() + 1, w.end())) {
				if (check(w, P, C)) ch = true;
			}
			ret.push_back(ch);
		}
		return ret;
	}
	if (subtask2) {
		vector <int> ret = {};
		if (N == 1) return { 1 };
		int cnt = 2;
		for (int i = N - 2; i > 0; i--) {
			if (C[i] != C[N - 1]) break;
			cnt++;
		}
		for (int i = 0; i < N - cnt; i++) {
			ret.push_back(0);
		}
		for (int i = 0; i < cnt; i++) {
			ret.push_back(1);
		}
		return ret;
	}
	if (subtask3) {
		bool esim = true;
		vector <int> ret(N, 0);
		vector <set<int>> sets;
		for (int i = N - 1; i >= 1; i--) {
			if (G[i].empty()) {
				ret[i] = 1;
			}
			else {
				bool ch = true;
				set <int> ms;
				for (auto it : G[i]) {
					if (ms.find(it.second) != ms.end()) {
						esim = false;
						ch = false;
					}
					ms.insert(it.second);
				}
				if (ch) {
					ret[i] = 1;
					sets.push_back(ms);
				}
			}
		}
		if (!esim) return ret;
		set <int> ms;
		for (auto it : G[0]) {
			if (ms.find(it.second) != ms.end()) {
				return ret;
			}
			ms.insert(it.second);
		}
		sort(sets.begin(), sets.end(), cmp);
		for (auto& it : sets) {
			for (auto& j : it) {
				if (ms.find(j) == ms.end()) {
					return ret;
				}
			}
			ms = it;
		}
		ret[0] = 1;
		return ret;
	}
	if (subtask4) {
		vector <int> ret(N, 0);
		vector <bool> lvl1(N, 0);
		vector <bool> different(N, true);
		vector <set<int>> sets(N, set<int>());
		for (int v = N - 1; v >= 0; v--) {
			if (G[v].empty()) {
				ret[v] = 1;
				continue;
			}
			lvl1[v] = true;
			for (auto& it : G[v]) {
				if (!G[it.first].empty()) lvl1[v] = false;
			}
			if (lvl1[v]) {
				for (auto& it : G[v]) {
					if (sets[v].find(it.second) != sets[v].end()) {
						different[v] = false;
					}
					sets[v].insert(it.second);
				}
				if (different[v]) {
					ret[v] = 1;
					continue;
				}
			}
			bool lvl2 = true;
			for (auto it : G[v]) {
				if (!G[it.first].empty() && !lvl1[it.first]) {
					lvl2 = false;
				}
			}
			if (!lvl2) continue;
			bool ch = true;
			for (auto it : G[v]) {
				if (!different[it.first]) ch = false;
			}
			set <int> ms;
			for (auto it : G[v]) {
				if (ms.find(it.second) != ms.end()) {
					ch = false;
				}
				ms.insert(it.second);
			}
			vector <set<int>> cur_sets;
			for (auto it : G[v]) {
				if (!G[it.first].empty()) cur_sets.push_back(sets[it.first]);
			}
			sort(cur_sets.begin(), cur_sets.end(), cmp);
			for (auto& it : cur_sets) {
				for (auto& j : it) {
					if (ms.find(j) == ms.end()) {
						ch = false;
					}
				}
				ms = it;
			}
			ret[v] = ch;
		}
		return ret;
	}
	if (subtask5) {
		vector <int> ret(N, 1);
		vector <set<int>> sets(N, set<int>());
		vector <bool> ch(N, true);
		for (int v = N - 1; v >= 0; v--) {
			for (auto it : G[v]) {
				if (!ch[it.first]) ch[v] = true;
			}
			for (auto it : G[v]) {
				if (sets[v].find(it.second) != sets[v].end()) {
					ch[v] = false;
				}
				sets[v].insert(it.second);
			}
			if (ch[v]) {
				priority_queue <pair<pair<int, int>, set<int>>> Q;
				set <int> ms = sets[v];
				Q.push({ { v, (int)G[v].size() }, sets[v] });
				while (!Q.empty()) {
					pair<pair<int, int>, set<int>> x = Q.top(); Q.pop();
					for (auto it : x.second) {
						if (ms.find(it) == ms.end()) {
							ret[v] = 0;
						}
					}
					ms = x.second;
					for (auto& it : G[x.first.first]) {
						Q.push({ { it.first, (int)G[it.first].size()  }, sets[it.first] });
					}
				}
			}
			else {
				ret[v] = 0;
			}
		}
		return ret;
	}
	return {};
}
/*
int main() {
	for (auto it : beechtree(18, 3, { -1, 0, 0, 0, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 5, 10, 11, 11 }, { 0, 1, 2, 3, 1, 2, 3, 1, 3, 3, 2, 1, 1, 2, 2, 1, 2, 3 })) {
		cout << it << " ";
	}
}
*/

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Incorrect 1 ms 344 KB 2nd lines differ - on the 2nd token, expected: '1', found: '0'
3 Halted 0 ms 0 KB -

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 122 ms 22648 KB Output is correct
8 Correct 94 ms 20184 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 55 ms 15496 KB Output is correct
18 Correct 46 ms 15564 KB Output is correct
19 Correct 91 ms 19924 KB Output is correct
20 Correct 115 ms 21416 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 90 ms 10900 KB Output is correct
16 Correct 82 ms 10316 KB Output is correct
17 Correct 118 ms 10456 KB Output is correct
18 Correct 101 ms 10832 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 122 ms 22648 KB Output is correct
6 Correct 94 ms 20184 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 133 ms 30672 KB Output is correct
12 Correct 210 ms 27988 KB Output is correct

Subtask #5
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Incorrect 1 ms 344 KB 2nd lines differ - on the 2nd token, expected: '1', found: '0'
3 Halted 0 ms 0 KB -

Subtask #6
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Incorrect 1 ms 348 KB 2nd lines differ - expected: 1995 tokens, found 0 tokens
31 Halted 0 ms 0 KB -

Subtask #7
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Incorrect 1 ms 344 KB 2nd lines differ - on the 2nd token, expected: '1', found: '0'
3 Halted 0 ms 0 KB -

Subtask #8
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Incorrect 1 ms 348 KB 2nd lines differ - expected: 1995 tokens, found 0 tokens
31 Halted 0 ms 0 KB -

Subtask #9
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Incorrect 1 ms 344 KB 2nd lines differ - on the 2nd token, expected: '1', found: '0'
3 Halted 0 ms 0 KB -