Submission #578566

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
578566	2022-06-17 09:51:31	Jarif_Rahman	Stranded Far From Home (BOI22_island)	C++17	100 / 100	164 ms	26796 KiB

island

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#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
void merge_vector(vector<int> &a, vector<int> &b){
    if(b.size() > a.size()) swap(a, b);
    while(!b.empty()) a.pb(b.back()), b.pop_back();
}
struct rechability_tree{
    int n;
    vector<int> p;
    vector<ll> s, sum;
    vector<vector<int>> sth;
    rechability_tree(int _n){
        n = _n;
        p.assign(n, -1);
        s.assign(n, 0);
        sum.assign(n, 0);
        sth.assign(n, {});
        for(int i = 0; i < n; i++) p[i] = i;
        for(int i = 0; i < n; i++) sth[i].pb(i);
    }
    int get(int nd){
        if(p[nd] != nd) p[nd] = get(p[nd]);
        return p[nd];
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 30 / 30
• Subtask 5: 35 / 35