제출 #873074

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
873074	2023-11-14 12:06:43	serifefedartar	수도 (JOI20_capital_city)	C++17	100 / 100	467 ms	41816 KiB

capital_city

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#include <bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(0);cin.tie(0);
#define s second
#define f first
typedef long long ll;
const ll MOD = 1e9+9;
const ll LOGN = 20; 
const ll MAXN = 2e5 + 100;
vector<vector<int>> graph;
int city[MAXN], marked[MAXN], sz[MAXN], vis[MAXN], cVis[MAXN];
vector<int> seen, v[MAXN];
queue<int> q;
int get_sz(int node, int parent) {
  sz[node] = 1;
  for (auto u : graph[node]) {
    if (u == parent || marked[u])
      continue;
    sz[node] += get_sz(u, node);
  }
  return sz[node];
}
int find_centro(int node, int parent, int n) {
  for (auto u : graph[node]) {
    if (u != parent && !marked[u] && sz[u] * 2 >= n)
      return find_centro(u, node, n);
 
 
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• Subtask 2: 10 / 10
• Subtask 3: 30 / 30
• Subtask 4: 59 / 59