Submission #1160388

#	Time	Username	Problem	Language	Result	Execution time	Memory
1160388		mentalmath231	9월 (APIO24_september)	C++20	Compilation error	0 ms	0 KiB

september

#include <bits/stdc++.h>
using namespace std; 
typedef long long ll;
int cnt = 0;
vector<int> visited(100002,0);
vector<vector<int>> kid(100002,vector<int>());
void dfs(int x){
	if (!visited[x]){
		cnt +=1;
		visited[x] = 1;
		for (auto i: kid[x]){
			dfs(i);
		}
	}
}
int solve(int n, int m, vector<int> f,  vector<vector<int>> s) {
	int ans = 0;
	for (int i =1; i<n; i++){
		kid[f[i]].push_back(i);
	}
	for (int i =0; i<n-1; i++){
		dfs(s[0][i]);
		if (cnt == i+1){
			ans +=1;
		}
	}
	return ans;
}
int main(){
	cout<<solve(3, 1, {-1, 0, 0}, {{1, 2}});
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccGtmJSL.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccKqBGvX.o:september.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status