Submission #185578

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
185578	2020-01-12 01:24:13	kdh9949	Race (IOI11_race)	C++17	100 / 100	492 ms	70796 KiB

race

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#include <bits/stdc++.h>
#include "race.h"
using namespace std;
using pii = pair<int, int>;
#define x first
#define y second
const int N = 200005;
int n, k, res = N;
vector<pii> e[N];
struct SET{
  set<pii> s;
  pii ofs;
  SET(): ofs(0, 0) { s.emplace(0, 0); }
};
SET *f(int x, int y){
  if(x && e[x].size() == 1) return new SET();
  vector<SET*> v;
  SET* mx = NULL;
  for(pii i : e[x]){
    if(i.x == y) continue;
    v.push_back(f(i.x, x));
    v.back()->ofs.x += i.y;
    v.back()->ofs.y++;
    if(!mx || mx->s.size() < v.back()->s.size()) mx = v.back();
  }
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57