제출 #655843

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
655843	2022-11-05 18:53:26	manizare	One-Way Streets (CEOI17_oneway)	C++17	60 / 100	522 ms	262144 KiB

oneway

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#include<bits/stdc++.h>
#define all(a) a.begin(),a.end()
#define pb push_back
using namespace std ;
const int maxn = 2e6 + 10 , maxq = 502 , inf = 1e9 , mod = 1e9+7 ;
vector <pair <int , int > > G[maxn] ;
vector <int>  l[maxn] ;
int dp[maxn] , mark2[maxn] , mark[maxn] , par[maxn]  , cnt = 1 ,c[maxn] , st[maxn] , en[maxn] , pr[maxn] , pp[maxn] , ans[maxn] , ok[maxn]; 
pair <int , int > ed[maxn] ;
void dfs(int v){ 
  mark[v] = 1;
  for(int i = 0; i < (int)G[v].size() ; i++){
    int u = G[v][i].first , id = G[v][i].second ;
    if(mark[u] == 1){
      if(mark2[id] == 0){
        dp[v] ++ ;
        dp[u] -- ;
        ans[id] = 3 ;
        mark2[id] = 1; 
      }
      continue ;
    }
    mark2[id] = 1;
    par[u] = id ;
    dfs(u) ;
    dp[v]+=dp[u];
  }
}
 
 
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컴파일 시 표준 에러 (stderr) 메시지

oneway.cpp: In function 'void dfs3(int)':
oneway.cpp:58:6: warning: unused variable 'ok' [-Wunused-variable]
   58 |  int ok = 0 ;
      |      ^~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 0 / 40