Submission #1051482

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1051482	2024-08-10 07:21:50	abczz	Parachute rings (IOI12_rings)	C++17	37 / 100	1411 ms	187932 KiB

rings

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#include <iostream>
#include <map>
#include <vector>
#define ll long long
using namespace std;
map <ll, ll> mp;
vector <ll> adj[1000000], V;
ll n, x, y, tot, P[1000000], cyc[1000000], deg[1000000];
ll dsu(ll u) {
  if (P[u] == u) return u;
  else return P[u] = dsu(P[u]);
}
void Init(int N_) {
  n = N_;
  tot = 0;
  mp.clear();
  for (int i=0; i<n; ++i) {
    adj[i].clear();
    P[i] = i;
    ++mp[i];
  }
}
bool dfs(ll u, ll p, ll x) {
  bool res = 0;
  for (auto v : adj[u]) {
    if (v != p) {
      if (v != x && V.empty()) res |= dfs(v, u, x);
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 17 / 17
• Subtask 3: 0 / 18
• Subtask 4: 0 / 14
• Subtask 5: 0 / 31