Submission #667216

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
667216	2022-11-30 18:42:21	atigun	Connecting Supertrees (IOI20_supertrees)	C++17	100 / 100	214 ms	24032 KiB

supertrees

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#include<bits/stdc++.h>
#include"supertrees.h"
 
using namespace std;
typedef long long ll;
 
struct dsu{
  vector<int> parent, size;
  int N;
  void assign(int dsusize){
    N = dsusize;
    parent.assign(N, 0);
    iota(parent.begin(), parent.end(), 0);
    size.assign(N, 1);
  }
  int find(int v){
    return parent[v] = (parent[v] == v ? v : find(parent[v]));
  }
  void merge(int v, int u){
    if(find(v) == find(u))
      return;
    if(size[find(v)] < size[find(u)])
      swap(u, v);
    size[find(v)]+= size[find(u)];
    parent[find(u)] = parent[find(v)];
  }
  bool is_same(int v, int u){
    return (find(v) == find(u));
  }
};
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:96:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |       for(int i = 1; i < side.size(); i++)
      |                      ~~^~~~~~~~~~~~~
supertrees.cpp:43:8: warning: unused variable 'ok' [-Wunused-variable]
   43 |   bool ok = 1;
      |        ^~

• Subtask 1: 11 / 11
• Subtask 2: 10 / 10
• Subtask 3: 19 / 19
• Subtask 4: 35 / 35
• Subtask 5: 21 / 21
• Subtask 6: 4 / 4