제출 #676203

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
676203		mseebacher	Bosses (BOI16_bosses)	C++17	컴파일 에러	0 ms	0 KiB

bosses

#include <bits/stdc++.h>
using namespace std;

typedef unsigned long long ull;
typedef long long ll;
typedef vector<int> vi;
#define MAXI (int)1e5
vector<int> ad[3*MAXI+1];
 queue<int> q;
int bfs(int x,int n){
	vector<bool> visi(n+1,0);
	q.push(x);
	ll cost = 1;
	dist[x] = 1;
	int cntr = 1;
	while(!q.empty()){
		int u = q.front(); q.pop();
		if(visi[u]) continue;
		visi[u] = true;
		for(auto s: ad[u]){
			if(!visi[s]){
				dist[s] = dist[u]+1;
				cost+=dist[s];
				q.push(s);
				cntr++;
			}
		}
	}
	return cntr == n ? cost: 1e9;
}
 
void solve(){
	
	int n; cin >> n;
	
	for(int i = 1;i<=n;i++){
		int x; cin >> x;
		for(int j = 0;j<x;j++){
			int g; cin >> g;
			ad[g].push_back(i);
		}
	}
	int mini = 1e9;
	for(int i = 1;i<=n;i++) {
		mini = min(mini,bfs(i,n));
	}
	cout << mini;
}
 
int main(){
    ios::sync_with_stdio(0);
    cin.tie(nullptr);
    cout << fixed << setprecision(8);
 
   int t = 1;
  // cin >> t;
   while(t){
	solve();
	t--;  
	cout << "\n";
   }
   return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bosses.cpp: In function 'int bfs(int, int)':
bosses.cpp:14:2: error: 'dist' was not declared in this scope
   14 |  dist[x] = 1;
      |  ^~~~