제출 #652906

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
652906		coding_snorlax	기지국 (IOI20_stations)	C++14	0 / 100	843 ms	644 KiB

stations

#include "stations.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> G[1005];
int vis[1005]={0};
int tree_order[1005];
int now_order=0;
int dfs(int node){
    vis[node]=1;

    tree_order[node]=now_order;
    now_order++;
    int Count=0;
    for(int i:G[node]){
        if(!vis[i]){
            Count+=dfs(i);
        }
    }
    return Count+1;
}
void get_graph(vector<int> G1,vector<int> G2){
    for(int i=0;i<1005;i++){
 		G[i].clear();
    }
    for(int i=0;i<(int)G1.size();i++){
        G[G1[i]].push_back(G2[i]);
        G[G2[i]].push_back(G1[i]);
    }
    int start;
    for(int i=0;i<(int)G1.size();i++){
        if((int)G1.size()==1) start=i;
    }
    for(int i=0;i<1005;i++){
        vis[i]=0;
        now_order=0;
    }
    dfs(start);
    return;
}
vector<int> label(int n,int k,vector<int> u,vector<int> v){
    vector<int> Answer;
    get_graph(u,v);
    for(int i=0;i<n;i++){
        Answer.push_back(tree_order[i]);
    }
    return Answer;
}
//s/1000 is node, s%1000 is connect place
int find_next_station(int s,int t,vector<int> c){
    if ((int)c.size()==1) return c[0];
    else{
        if(s<t) return c[1];
        else return c[0];
    }

}

컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'void get_graph(std::vector<int>, std::vector<int>)':
stations.cpp:37:8: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]
   37 |     dfs(start);
      |     ~~~^~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61