제출 #578133

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
578133	2022-06-16 05:36:08	talant117408	Spring cleaning (CEOI20_cleaning)	C++17	35 / 100	334 ms	24732 KiB

cleaning

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#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
#define long                unsigned long 
#define pb                  push_back
#define mp                  make_pair
#define all(v)              (v).begin(),(v).end()
#define rall(v)             (v).rbegin(),(v).rend()
#define lb                  lower_bound
#define ub                  upper_bound
#define sz(v)               int((v).size())
#define do_not_disturb      ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define endl                '\n'
const int N = 2e5+7;
vector <vector <int>> graph(N), new_graph(N);
int root, subtree[N], depth[N], parent[N], nw[N];
ll ans;
void dfs(int v, int p) {
    subtree[v] = (sz(new_graph[v]) == 1 ? 1 : 0);
    parent[v] = p;
    for (auto to : new_graph[v]) {
        if (to == p) {
            continue;
 
 
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