oj.uz

Submission #766726

# Submission time Handle Problem Language Result Execution time Memory
766726 2023-06-26T05:33:59 Z SanguineChameleon Toy Train (IOI17_train) C++17
0 / 100
 145 ms 262144 KB 
#include "train.h"
#include <bits/stdc++.h>
using namespace std;

const int maxn = 5e3 + 20;
vector<int> adj[maxn];
bool charge[maxn];
bool good[maxn];
bool flag[maxn];
int own[maxn];
int n, m;
int root;

bool dfs1(int u) {
	flag[u] = true;
	for (auto v: adj[u]) {
		if (v == root) {
			return true;
		}
		else if (!flag[v] && dfs1(v)) {
			return true;
		}
	}
	return false;
}

bool dfs2(int u) {
	if (good[u]) {
		return true;
	}
	for (auto v: adj[u]) {
		if (!flag[v] && dfs2(v)) {
			return true;
		}
	}
	return false;
}

vector<int> sub3() {
	for (root = 0; root < n; root++) {
		if (!charge[root]) {
			continue;
		}
		for (int u = 0; u < n; u++) {
			flag[u] = false;
		}
		good[root] = dfs1(root);
	}
	vector<int> res(n);
	for (root = 0; root < n; root++) {
		for (int u = 0; u < n; u++) {
			flag[u] = false;
		}
		res[root] = dfs2(root);
	}
	return res;
}

vector<int> sub4() {
	return vector<int>();
}

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
	n = a.size();
	for (int i = 0; i < n; i++) {
		own[i] = a[i];
		charge[i] = r[i];
	}
	m = u.size();
	for (int i = 0; i < m; i++) {
		adj[u[i]].push_back(v[i]);
	}
	bool is_sub3 = true;
	bool is_sub4 = true;
	for (int i = 0; i < n; i++) {
		is_sub3 &= (own[i] == 1);
		is_sub4 &= (own[i] == 0);
	}
	if (is_sub3) {
		return sub3();
	}
	if (is_sub4) {
		return sub4();
	}
	return vector<int>();
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 852 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 420 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 145 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 1068 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 1236 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 852 KB WA in grader: Wrong returned array size
2 Halted 0 ms 0 KB -