Submission #282583

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
282583	2020-08-24 15:15:32	Noam13	Ancient Books (IOI17_books)	C++14	100 / 100	943 ms	148392 KiB

books

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#include "books.h"
#include <bits/stdc++.h>
#define vi vector<int>
#define vvi vector<vi>
#define vb vector<bool>
#define vvb vector<vb>
#define ii pair<int, int>
#define x first
#define y second
#define vii vector<ii>
#define pb push_back
#define all(x) x.begin(), x.end()
#define loop(i,s,e) for(int i=s;i<e;++i)
#define chkmax(a,b) a = max(a,b)
#define chkmin(a,b) a = min(a,b)
using namespace std;
const int INF = 1e9;
typedef long long ll;
struct DSU{
  int n;
  vi p, sz;
  DSU(int n):n(n), p(n,-1), sz(n,1){}
  int find(int c){
    if (p[c]==-1) return c;
    return p[c] = find(p[c]);
  }
  void uni(int a, int b){
    a = find(a), b = find(b);
    if (a==b) return  ;
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 10 / 10
• Subtask 3: 28 / 28
• Subtask 4: 20 / 20
• Subtask 5: 30 / 30