제출 #897374

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
897374	2024-01-03 02:38:37	NeroZein	Designated Cities (JOI19_designated_cities)	C++17	16 / 100	188 ms	43312 KiB

designated_cities

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#include "bits/stdc++.h"
using namespace std;
#ifdef Nero
#include "Deb.h"
#else
#define deb(...)
#endif
const int N = 2e5 + 5;
long long f[N];
long long ans[N];
long long dist[N];
vector<pair<int, int>> g[N];
pair<long long, long long> dp[N];
void dfs1(int v, int p) {
  long long mx = 0, mx2 = 0;
  for (auto [u, w] : g[v]) {
    if (u == p) continue;
    dist[1] += w;
    dfs1(u, v); 
    mx2 = max(mx2, dp[u].first + w); 
    if (mx2 > mx) swap(mx, mx2);
  }
  dp[v] = make_pair(mx, mx2);
}
void dfs2(int v, int p, long long up) {
 
 
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