제출 #236295

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
236295	2020-06-01 02:11:29	super_j6	Mousetrap (CEOI17_mousetrap)	C++14	100 / 100	990 ms	174588 KiB

mousetrap

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#include <iostream>
#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<int, int>
#define f first
#define s second
 
const int maxn = 1000000;
int n, m, k;
int a[maxn], d[maxn], dp[maxn];
vector<int> graph[maxn];
vector<pi> v;
 
void dfs(int c, int p){
  pi ret;
  for(int i : graph[c]){
    if(i == p) continue;
    if(~p) dp[i] += dp[c] + graph[c].size() - 2;
    dfs(i, c);
    a[c] |= a[i];
    ret.s = max(ret.s, dp[i]);
    if(ret.s > ret.f) swap(ret.f, ret.s);
  }
  if(graph[c].size() > 2) dp[c] = ret.s;
  dp[c] += graph[c].size() > 1;
}
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 25 / 25
• Subtask 3: 20 / 20
• Subtask 4: 35 / 35