제출 #704113

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
704113	2023-03-01 15:33:11	1075508020060209tc	Unique Cities (JOI19_ho_t5)	C++14	4 / 100	2055 ms	39020 KiB

joi2019_ho_t5

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//#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define X first
#define Y second
int n;int m;
int ar[500005];
vector<int>e[500005];
vector<int>freq[500005];
int dph[500005];
void dfs(int nw,int pa){
dph[nw]=dph[pa]+1;
freq[dph[nw]].push_back(nw);
for(int i=0;i<e[nw].size();i++){
    int v=e[nw][i];
    if(v==pa){continue;}
    dfs(v,nw);
}
}
void solve(int rt){
dfs(rt,0);
set<int>st;
for(int i=2;i<=n;i++){
    if(freq[i].size()==1){
        st.insert(ar[freq[i][0]]);
    }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

joi2019_ho_t5.cpp: In function 'void dfs(long long int, long long int)':
joi2019_ho_t5.cpp:16:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 | for(int i=0;i<e[nw].size();i++){
      |             ~^~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 0 / 32
• Subtask 3: 0 / 32
• Subtask 4: 0 / 32