Submission #838333

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
838333	2023-08-26 15:33:37	Johann	Ancient Books (IOI17_books)	C++14	100 / 100	262 ms	63828 KiB

books

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#include "books.h"
#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll, ll> pii;
typedef vector<pii> vpii;
typedef vector<vpii> vvpii;
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
const ll INF = 1LL << 60;
int N;
ll safecost;
vi vis, P;
struct unionfind
{
  vi arr;
  vpii stuff;
  void init(int size)
  {
    arr.resize(size);
    stuff.resize(size);
    for (int i = 0; i < size; ++i)
      arr[i] = i, stuff[i] = {i, i};
  }
  int find(int i) { return arr[i] = (arr[i] == i) ? i : find(arr[i]); }
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 10 / 10
• Subtask 3: 28 / 28
• Subtask 4: 20 / 20
• Subtask 5: 30 / 30