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Submission #884156

# Submission time Handle Problem Language Result Execution time Memory
884156 2023-12-06T16:20:21 Z 42kangaroo Beech Tree (IOI23_beechtree) C++17
22 / 100
 174 ms 127316 KB 
//  D. Beech Tree

#include<bits/stdc++.h>
#include "beechtree.h"

using namespace std;

using g_t = vector<vector<int>>;
using dVal = map<int, int>;

struct ValR {
	int d, n, co;
};

dVal dfs(int n, g_t &g, vector<bool>& po, vector<int>& c) {
	dVal r;
	map<int, vector<pair<int,int>>> ve;
	for (auto e: g[n]) {
		if (r.find(c[e]) != r.end()) po[n] = false;
		r[c[e]] = 1;
		ve[c[e]] = {};
	}
	for (auto e: g[n]) {
		dVal re = dfs(e, g, po, c);
		if (!po[e]) {
			po[n] = false;
		}
		if (po[n]) {
			for (auto &[co, d]: re) {
				if (r.find(co) == r.end()) {
					po[n] = false;
					break;
				}
				if (co == c[e]) r[c[e]] = d + 1;
				ve[co].push_back({d, e});
			}
		}
	}
	if (!po[n]) return {};
	map<int,int> val;
	vector<ValR> si;
	for (auto &[co, vec]: ve) {
		si.push_back({r[co] - 1, 0, co});
		si.push_back({r[co], 0, co});
		for (auto [d, e]: vec) {
			val[e] = 0;
			if (d > r[co]) {
				po[n] = false;
				return {};
			} else if (d == r[co]) {
				si.back().n++;
				si[si.size() - 2].n++;
			} else {
				si[si.size() - 2].n++;
				si[si.size() - 2].d = min(d, si[si.size() - 2].d);
			}
		}
	}
	std::sort(si.begin(), si.end(), [](const ValR& l, const ValR& r) {return l.n > r.n;});
	int i = 1;
	for (auto v: si) {
		for (auto [d, e]: ve[v.co]) {
			if (d >= v.d) {
				if (val[e] != i - 1) {
					po[n] = false;
					return {};
				}
				val[e] = i;
			}
		}
		i++;
	}
	return r;
}

vector<int> beechtree(int N, int M, vector<int> P, vector<int> C) {
	g_t g(N);
	for (int i = 1; i < N; ++i) {
		g[P[i]].push_back(i);
	}
	vector<bool> po(N, true);
	dfs(0, g, po, C);
	return {po.begin(), po.end()};
}

Subtask #0
0.0 / 0.0

# 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

Subtask #1
0.0 / 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 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
10 Halted 0 ms 0 KB -

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 0 ms 348 KB Output is correct
7 Correct 145 ms 127172 KB Output is correct
8 Correct 148 ms 127216 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 500 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 2 ms 1624 KB Output is correct
14 Correct 2 ms 1628 KB Output is correct
15 Correct 2 ms 1628 KB Output is correct
16 Correct 1 ms 1628 KB Output is correct
17 Correct 160 ms 127036 KB Output is correct
18 Correct 174 ms 127316 KB Output is correct
19 Correct 169 ms 127052 KB Output is correct
20 Correct 145 ms 127060 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 1 ms 348 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 424 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 600 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 105 ms 6320 KB Output is correct
16 Correct 68 ms 5200 KB Output is correct
17 Correct 72 ms 5460 KB Output is correct
18 Correct 102 ms 6216 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 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 145 ms 127172 KB Output is correct
6 Correct 148 ms 127216 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 94 ms 18616 KB Output is correct
12 Correct 160 ms 11444 KB Output is correct

Subtask #5
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 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 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
13 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 344 KB Output is correct
5 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
6 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 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 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 344 KB Output is correct
12 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
13 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 344 KB Output is correct
5 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
6 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 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 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 344 KB Output is correct
12 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
13 Halted 0 ms 0 KB -