Submission #1173662

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1173662	2025-03-25 17:10:48	SpyrosAliv	Thousands Islands (IOI22_islands)	C++20	10 / 100	24 ms	7140 KiB

islands

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#include <bits/stdc++.h>
using namespace std;
int n, m;
vector<int> u, v;
vector<vector<int>> av;
bool cycle;
vector<bool> vis;
void dfs(int node) {
    if (cycle) return;
    vis[node] = true;
    vector<int> targs;
    for (int i = 1; i < (int)av[node].size(); i++) {
        targs.push_back(v[av[node][i]]);
    }
    sort(targs.begin(), targs.end());
    int s = targs.size();
    for (int i = 1; i < s; i++) {
        if (targs[i] == targs[i-1] || vis[targs[i]]) {
            cycle = true;
            return;
        }
    }
    if (targs.size() > 0 && vis[targs[0]]) {
        cycle = true;
        return;
    }
    for (int i = 0; i < s; i++) {
        dfs(targs[i]);
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45