Submission #768176

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
768176	2023-06-27 16:27:25	green_gold_dog	Cyberland (APIO23_cyberland)	C++17	100 / 100	1889 ms	23796 KiB

cyberland

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#include "cyberland.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1'000'000'000'000'000'000;
void dfs(ll v, ll h, vector<vector<pair<ll, ll>>>& g, vector<bool>& used) {
  used[v] = true;
  if (v == h) {
    return;
  }
  for (auto[i, _] : g[v]) {
    if (!used[i]) {
      dfs(i, h, g, used);
    }
  }
}
double solve(int n, int m, int k, int h, vector<int> x, vector<int> y, vector<int> c, vector<int> arr) {
  vector<vector<pair<ll, ll>>> g(n);
  for (ll i = 0; i < m; i++) {
    g[x[i]].emplace_back(y[i], c[i]);
    g[y[i]].emplace_back(x[i], c[i]);
  }
  vector<bool> used(n, false);
  dfs(0, h, g, used);
 
 
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