이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
#define maxn 5050
vector<vector<int> > adj(maxn);
void dfs(int node,int parent,vector<vector<int> > &ad,vector<int> &dist){
dist[node] = 1;
for(auto k:ad[node]){
if(k!=parent){
dfs(k,node,ad,dist);
dist[node] += dist[k];
}
}
}
int32_t main() {
ios::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
int no_of_input,no_of_input1,input;
cin >> no_of_input;
for(int i=1;i<=no_of_input;i++){
cin >> no_of_input1;
for(int j=0;j<no_of_input1;j++){
cin >> input;
//adj[i].push_back(input);
adj[input].push_back(i);
}
}
int ans = INT_MAX;
deque<pair<int,int> > q1;
deque<int> q2;
vector<int> dist(maxn,INT_MAX);
vector<int> parent(maxn,0);
vector<int> dist2(maxn,0);
for(int i=1;i<=no_of_input;i++){//tree rooted at node i
for(int j=1;j<=no_of_input;j++){
dist[j] = INT_MAX;
parent[j] = 0;
dist2[j] = 1;
}
q1.push_back({i,0});
dist[i] = 0;
while(q1.size()!=0){
pair<int,int> a = q1.front();
q1.pop_front();
for(auto k:adj[a.first]){
if(a.second+1<dist[k]){
dist[k] = a.second+1;
parent[k] = a.first;
q1.push_back({k,dist[k]});
}
}
}
int sum = 0;
vector<pair<int,int> > vect1;
for(int j=1;j<=no_of_input;j++){
if(j!=i&&parent[j]==0){
goto cont;
}
vect1.push_back({dist[j],j});
}
sort(vect1.begin(),vect1.end());
reverse(vect1.begin(),vect1.end());
for(int j=0;j<vect1.size();j++){
//cout << parent[vect1[j].second] << endl;
dist2[parent[vect1[j].second]] += dist2[vect1[j].second];
}
for(int j=1;j<=no_of_input;j++){
if(i!=j&&parent[j]==0){
sum = 1000000000;
}
//cout << dist2[j] << " ";
sum += dist2[j];
}
//cout << endl;
//cout << sum << "--\n";
ans = min(ans,sum);
cont : ;
}
cout << ans;
}
컴파일 시 표준 에러 (stderr) 메시지
bosses.cpp: In function 'int32_t main()':
bosses.cpp:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<vect1.size();j++){
~^~~~~~~~~~~~~
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