Submission #319020

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
319020	2020-11-03 17:49:35	rqi	Pipes (BOI13_pipes)	C++14	74.07 / 100	378 ms	21988 KiB

pipes

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#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
typedef long long ll;
typedef pair<int, int> pi;
typedef vector<pi> vpi;
#define mp make_pair
#define f first
#define s second
#define pb push_back
struct DSU{
  vi e;
  void init(int n){
    e = vi(n, -1);
  }
  int get(int a){
    if(e[a] < 0) return a;
    e[a] = get(e[a]);
    return e[a];
  }
  bool unite(int a, int b){
    a = get(a);
    b = get(b);
    if(a == b) return 0;
    if(-e[a] < -e[b]) swap(a, b);
    e[b] = a;
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 44.074074074074076 / 70