제출 #253210

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
253210	2020-07-27 12:13:22	nandonathaniel	Roadside Advertisements (NOI17_roadsideadverts)	C++14	100 / 100	232 ms	10372 KiB

roadsideadverts

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#include<bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
const int MAXN=5e4+5,LOG=16;
int depth[MAXN],pa[LOG][MAXN],a[5],par[MAXN],pref[MAXN];
vector<pii> adj[MAXN];
int find(int a){
  if(par[a]==a)return par[a];
  return par[a]=find(par[a]);
}
void join(int a,int b){
  int ortua=find(a);
  int ortub=find(b);
  par[ortub]=ortua;
}
void dfs(int now,int par){
  for(auto nxt : adj[now]){
    if(nxt.first==par)continue;
    pa[0][nxt.first]=now;
    for(int i=1;i<LOG;i++)pa[i][nxt.first]=pa[i-1][pa[i-1][nxt.first]];
    pref[nxt.first]=pref[now]+nxt.second;
    depth[nxt.first]=depth[now]+1;
    dfs(nxt.first,now);
  }
}
int LCA(int u,int v){
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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컴파일 시 표준 에러 (stderr) 메시지

roadsideadverts.cpp: In function 'int main()':
roadsideadverts.cpp:78:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<node.size();i++){
               ~^~~~~~~~~~~~
roadsideadverts.cpp:79:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int j=i+1;j<node.size();j++){
                  ~^~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 23 / 23
• Subtask 3: 40 / 40
• Subtask 4: 30 / 30