Submission #751911

#	Time^UTC-0	Username	Problem	Language	Result	Execution time	Memory
751911	2023-06-01 19:22:36	kenansalloum	Thousands Islands (IOI22_islands)	C++17	Compilation error	0 ms	0 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

islands

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#include <vector>
#include <unordered_set>
using namespace std;
bool dfs(int curr, int prev, vector<vector<int>>& adjList, vector<int>& journey, unordered_set<int>& usedCanoes) {
    journey.push_back(curr);
    if (curr == 0 && journey.size() > 1) {
        return true;
    }
    for (int next : adjList[curr]) {
        if (next != prev && !usedCanoes.count(next)) {
            usedCanoes.insert(next);
            if (dfs(next, curr, adjList, journey, usedCanoes)) {
                return true;
            }
            usedCanoes.erase(next);
        }
    }
    journey.pop_back();
    return false;
}
vector<int> find_journey(int N, int M, vector<int>& U, vector<int>& V) {
    vector<vector<int>> adjList(N);
    for (int i = 0; i < M; i++) {
 
 
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Compilation message (stderr)

/usr/bin/ld: /tmp/ccFHTPRQ.o: in function `main':
grader.cpp:(.text.startup+0x229): undefined reference to `find_journey(int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status