Submission #1094590

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1094590	2024-09-30 04:13:30	azberjibiou	Keys (IOI21_keys)	C++17	100 / 100	596 ms	216148 KiB

keys

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#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#define all(v) v.begin(), v.end()
#define pb push_back
#define lb lower_bound
#define gibon ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define pii pair<int, int>
#define pll pair<ll, ll>
typedef long long ll;
using namespace std;
const int mxN=300050;
const int mxM=10000;
const int mxK=60;
const ll INF=1e18;
struct uf{
    int par[mxN];
    set <pii> noE[mxN];
    set <int> keys[mxN];
    vector <int> okE[mxN];
    int pnt[mxN];
    int fp(int a){return par[a]==a ? a : par[a]=fp(par[a]);}
    void mrg1(int a, int b){
        int p=fp(a), q=fp(b);
        if(p==q) return;
        int szp=keys[p].size()+noE[p].size(), szq=keys[q].size()+noE[q].size();
        if(szp>szq) swap(p, q);
        for(int x : keys[p]){
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 17 / 17
• Subtask 4: 30 / 30
• Subtask 5: 33 / 33