oj.uz

Submission #991184

# Submission time Handle Problem Language Result Execution time Memory
991184 2024-06-01T14:11:38 Z alex_2008 Beech Tree (IOI23_beechtree) C++17
23 / 100
 118 ms 22480 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;
		}
	}

}
/*
int main() {
	for (auto it : beechtree(5, 2, { -1, 0, 1, 2, 3 }, { 0, 1, 2, 2, 2 })) {
		cout << it << " ";
	}
}
*/

Compilation message

beechtree.cpp: In function 'std::vector<int> beechtree(int, int, std::vector<int>, std::vector<int>)':
beechtree.cpp:39:17: warning: control reaches end of non-void function [-Wreturn-type]
   39 |  map <int, int> mp;
      |                 ^~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 1 ms 348 KB Execution killed with signal 11
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 1 ms 344 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 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 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 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 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 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 118 ms 22480 KB Output is correct
8 Correct 91 ms 20176 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 404 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 2 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 600 KB Output is correct
17 Correct 50 ms 15560 KB Output is correct
18 Correct 46 ms 15432 KB Output is correct
19 Correct 89 ms 19868 KB Output is correct
20 Correct 110 ms 21420 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 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 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 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 92 ms 11020 KB Output is correct
16 Correct 86 ms 10380 KB Output is correct
17 Correct 82 ms 10332 KB Output is correct
18 Correct 97 ms 10724 KB Output is correct

Subtask #4
0.0 / 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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 118 ms 22480 KB Output is correct
6 Correct 91 ms 20176 KB Output is correct
7 Runtime error 1 ms 348 KB Execution killed with signal 11
8 Halted 0 ms 0 KB -

Subtask #5
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 1 ms 348 KB Execution killed with signal 11
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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 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 1 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 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 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 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 344 KB Output is correct
30 Runtime error 2 ms 604 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -

Subtask #7
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 1 ms 348 KB Execution killed with signal 11
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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 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 1 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 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 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 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 344 KB Output is correct
30 Runtime error 2 ms 604 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -

Subtask #9
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 1 ms 348 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -