Submission #463445

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
463445	2021-08-11 07:15:58	grt	Praktični (COCI18_prakticni)	C++17	26 / 130	115 ms	14968 KiB

parkticni

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#include <bits/stdc++.h>
#define PB push_back
#define ST first
#define ND second
#define _ ios_base::sync_with_stdio(0); cin.tie(0);
//mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
using namespace std;
using ll = long long;
using pi = pair<int,int>;
using vi = vector<int>;
const int nax = 100 * 1000 + 10, mod = 1e9 + 7, p = 31;
int n, m;
vector<pi>V[nax];
int cost[nax];
bool vis[nax];
int xr[nax];
vector<pi>num;
bool done[nax];
void dfs(int x, int par) {
  vis[x] = true;
  for(auto nbh : V[x]) if(nbh.ST != par) {
    if(!vis[nbh.ST]) {
      xr[nbh.ST] = xr[x] ^ cost[nbh.ND];
      dfs(nbh.ST, x);
    } else {
      if(done[nbh.ND]) continue;
 
 
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