Submission #254682

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
254682	2020-07-30 12:39:58	Mahdi_Jfri	Bridges (APIO19_bridges)	C++14	73 / 100	3022 ms	24844 KiB

bridges

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#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define lb(a) ((a)&(-(a)))
const int maxn = 1e5 + 20;
const int sq = 1000;
int from[maxn] , to[maxn] , w[maxn];
bool has[maxn];
int e[maxn] , nw[maxn] , s[maxn] , tmpw[maxn] , ans[maxn] , type[maxn];
vector<int> edges[maxn * 2] , query[maxn * 2];
vector<pair<int , int> > history;
int par[maxn / 2];
int root(int v , bool compress = 1)
{
  if(compress)
    return (par[v] < 0? v : par[v] = root(par[v]));
  while(par[v] >= 0)
    v = par[v];
  return v;
 
 
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