Submission #560678

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
560678	2022-05-11 22:15:53	AlperenT	Keys (IOI21_keys)	C++17	37 / 100	3076 ms	65352 KiB

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#include <bits/stdc++.h>
using namespace std;
const int N = 3e5 + 5;
int cnt[N];
struct DSU{
  int par[N], setsize[N];
  void reset(int n){
    for(int i = 0; i < n; i++) par[i] = i, setsize[i] = 1;
  }
  int setfind(int a){
    if(a == par[a]) return a;
    else return par[a] = setfind(par[a]);
  }
  void setunion(int a, int b){
    a = setfind(a), b = setfind(b);
    if(a != b){
      if(setsize[b] > setsize[a]) swap(a, b);
      par[b] = par[a];
      setsize[a] += setsize[b];
    }
  }
};
 
 
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Compilation message (stderr)

keys.cpp: In function 'std::vector<int> find_reachable(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
keys.cpp:107:3: warning: label 'skip' defined but not used [-Wunused-label]
  107 |   skip:
      |   ^~~~

• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 17 / 17
• Subtask 4: 0 / 30
• Subtask 5: 0 / 33