oj.uz

Submission #991186

# Submission time Handle Problem Language Result Execution time Memory
991186 2024-06-01T14:13:01 Z alex_2008 Beech Tree (IOI23_beechtree) C++17
31 / 100
 133 ms 33196 KB 
#include "beechtree.h"
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <map>
#include <set>
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;
	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;
	}
	return {};
}
/*
int main() {
	for (auto it : beechtree(5, 2, { -1, 0, 1, 2, 3 }, { 0, 1, 2, 2, 2 })) {
		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 0 ms 344 KB 2nd lines differ - expected: 18 tokens, found 0 tokens
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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 344 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 0 ms 344 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 600 KB Output is correct
23 Correct 1 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 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 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 0 ms 348 KB Output is correct
33 Correct 1 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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 132 ms 22620 KB Output is correct
8 Correct 95 ms 20176 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 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 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 51 ms 15560 KB Output is correct
18 Correct 57 ms 15564 KB Output is correct
19 Correct 88 ms 19920 KB Output is correct
20 Correct 114 ms 21448 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 348 KB Output is correct
4 Correct 0 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 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 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 91 ms 10832 KB Output is correct
16 Correct 80 ms 10380 KB Output is correct
17 Correct 86 ms 10324 KB Output is correct
18 Correct 96 ms 10788 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 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 132 ms 22620 KB Output is correct
6 Correct 95 ms 20176 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 700 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 129 ms 33196 KB Output is correct
12 Correct 133 ms 30288 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 0 ms 344 KB 2nd lines differ - expected: 18 tokens, found 0 tokens
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 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 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 0 ms 344 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 600 KB Output is correct
19 Correct 1 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 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 344 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 0 ms 344 KB 2nd lines differ - expected: 18 tokens, found 0 tokens
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 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 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 0 ms 344 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 600 KB Output is correct
19 Correct 1 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 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 344 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 0 ms 344 KB 2nd lines differ - expected: 18 tokens, found 0 tokens
3 Halted 0 ms 0 KB -