Submission #163339

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
163339	2019-11-12 17:37:24	alishahali1382	One-Way Streets (CEOI17_oneway)	C++14	100 / 100	128 ms	18288 KiB

oneway

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#include <bits/stdc++.h>
#pragma GCC optimize ("O2,unroll-loops")
using namespace std;
typedef pair<int, int> pii;
#define pb push_back
const int MAXN = 100010;
int n, m, k, u, v, x, y, t, a, b;
int val[MAXN];
char ans[MAXN];
int E[MAXN][2];
int H[MAXN];
int comp[MAXN];
vector<pii> G[MAXN];
vector<int> G2[MAXN], bridge;
int Bridge(int node, int par, int parid){
  int res=H[node]=H[par]+1;
  for (pii p:G[node]) if (p.second!=parid){
    int v=p.first, i=p.second;
    if (H[v]){
      res=min(res, H[v]);
      ans[i]='B';
    }
    else res=min(res, Bridge(v, node, i));
  }
  if (res<H[node]){
    ans[parid]='B';
    G2[par].pb(node);
    G2[node].pb(par);
 
 
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Compilation message (stderr)

oneway.cpp: In function 'int dfs2(int, int, int)':
oneway.cpp:46:20: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses]
  else if (val[node]<0 ^ E[parid][0]==par) ans[parid]='L';
           ~~~~~~~~~^~

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