Submission #102998

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
102998	2019-03-28 12:28:37	wxh010910	Parachute rings (IOI12_rings)	C++17	100 / 100	3024 ms	80728 KiB

rings

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#include <bits/stdc++.h>
using namespace std;
class dsu {
 public:
  vector<int> p, sz, deg;
  bool ans;
  void init(int n) {
    p.resize(n);
    sz.resize(n);
    deg.resize(n);
    ans = true;
    for (int i = 0; i < n; ++i) {
      p[i] = i;
      sz[i] = 1;
      deg[i] = 0;
    }
  }
  inline int find(int x) {
    while (x != p[x]) {
      x = p[x] = p[p[x]];
    }
    return x;
  }
  void unite(int x, int y) {
    ++deg[x];
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 17 / 17
• Subtask 3: 18 / 18
• Subtask 4: 14 / 14
• Subtask 5: 31 / 31