Submission #837598

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
837598	2023-08-25 12:38:42	tengiz05	Thousands Islands (IOI22_islands)	C++17	29 / 100	27 ms	4432 KiB

islands

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#include "islands.h"
#include <bits/stdc++.h>
using namespace std;
std::variant<bool, vector<int>> find_journey(int n, int m, vector<int> U, vector<int> V) {
    if (n == 2) {
        vector<int> e[n];
        for (int i = 0; i < m; i++) {
            e[U[i]].push_back(i);
        }
        if (e[0].size() >= 2 && e[1].size() >= 1) {
            return vector<int>{e[0][0], e[1][0], e[0][1], e[0][0], e[1][0], e[0][1]};
        } else {
            return false;
        }
    }
    vector<vector<int>> adj(n);
    for (int i = 0; i < m; i += 2) {
        adj[U[i]].push_back(i);
    }
    vector<int> path;
    vector<int> dep(n);
    vector<int> vis(n);
    bool found = false;
    vector<int> ans;
    function<void(int)> dfs = [&](int u) {
        vis[u] = 1;
        for (int i : adj[u]) {
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 24 / 24
• Subtask 5: 0 / 45