제출 #1173658

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
1173658	2025-03-25 17:06:28	SpyrosAliv	수천개의 섬 (IOI22_islands)	C++20	0 / 100	1123 ms	1908000 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;
        }
    }
    for (int i = 0; i < s; i++) {
        dfs(targs[i]);
        if (cycle) return;
    }
}
 
 
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컴파일 시 표준 에러 (stderr) 메시지

islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)':
islands.cpp:78:1: warning: control reaches end of non-void function [-Wreturn-type]
   78 | }
      | ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45