Submission #414355

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
414355	2021-05-30 11:21:42	ritul_kr_singh	Capital City (JOI20_capital_city)	C++17	100 / 100	708 ms	34260 KiB

capital_city

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#include <bits/stdc++.h>
using namespace std;
// #define int long long
#define sp << ' ' <<
#define nl << '\n'
 
const int MAXN = 2e5;
 
int n, k, color[MAXN], par[MAXN], s[MAXN], ans = MAXN;
vector<int> g[MAXN], h[MAXN];
bitset<MAXN> r, vis, bad;
 
void calcSize(int u){
  s[u] = 1;
  for(int v : g[u]) if(!s[v]) calcSize(v), s[u] += s[v];
}
 
int find(int u, int p, int sz){
  bool f = 1;
  while(f){
    f = 0;
    s[p] -= s[u], s[u] = sz;
    for(int v : g[u]){
      if(!r[v] && s[v] > sz/2){
        p = u, u = v;
        f = 1;
        break;
      }
    }
  }
 
 
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• Subtask 1: 1 / 1
• Subtask 2: 10 / 10
• Subtask 3: 30 / 30
• Subtask 4: 59 / 59