제출 #879762

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
879762	2023-11-28 05:24:12	TAhmed33	Papričice (COCI20_papricice)	C++98	50 / 110	184 ms	25640 KiB

papricice

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5 + 25;
vector <int> adj[MAXN];
int sze[MAXN], n, in[MAXN], out[MAXN], t;
set <int> dd[MAXN];
typedef long long ll;
int mn = 1e9; const int bad = -1e9;
void dfs (int pos, int par) {
  sze[pos] = 1;
  in[pos] = ++t;
    int mx = bad;
  for (auto j : adj[pos]) {
    if (j == par) continue;
    dfs(j, pos);
    sze[pos] += sze[j];
        if (dd[pos].size() < dd[j].size()) swap(dd[pos], dd[j]);
        for (auto i : dd[j]) dd[pos].insert(i);
        dd[j].clear();
  }
    dd[pos].insert(sze[pos]);
    for (auto i : dd[pos]) {
        if (abs(2 * i - sze[pos]) < abs(2 * mx - sze[pos])) {
            mx = i;
        }
    }
    if (sze[pos] != 1 && pos != 1) mn = min(mn, max({n - sze[pos], sze[pos] - mx, mx}) - min({n - sze[pos], sze[pos] - mx, mx}));
  out[pos] = t;
}
bool check (int x, int y) {
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 35 / 35
• Subtask 3: 0 / 60