Submission #783924

#	Time	Username	Problem	Language	Result	Execution time	Memory
783924		tolbi	Game (IOI14_game)	C++17	100 / 100	271 ms	16588 KiB

game

#pragma optimize("Bismillahirrahmanirrahim")
//█▀█─█──█──█▀█─█─█
//█▄█─█──█──█▄█─█■█
//█─█─█▄─█▄─█─█─█─█
//Allahuekber
//ahmet23 orz...
//FatihSultanMehmedHan
//YavuzSultanSelimHan
//AbdulhamidHan
//Sani buyuk Osman Pasa Plevneden cikmam diyor.
#define author tolbi
#include<bits/stdc++.h>
using namespace std;
template<typename X, typename Y> ostream& operator<<(ostream& os, pair<X,Y> pr){return os<<pr.first<<" "<<pr.second;}
ostream& operator<<(ostream& os, bool bl){return os<<(int32_t)bl;}
template<typename X> ostream& operator<<(ostream& os, vector<X> v){for(auto &it : v) os<<it<<" ";return os;}
template<typename X, size_t Y> ostream& operator<<(ostream& os, array<X,Y> v){for(auto &it : v) os<<it<<" ";return os;}
#define deci(x) int x;cin>>x;
#define endl '\n'
#define decstr(x) string x;cin>>x;
#define sortarr(x) sort(x.begin(), x.end())
#define sortrarr(x) sort(x.rbegin(), x.rend())
#define rev(x) reverse(x.begin(), x.end())
#define tol(bi) (1LL<<((int)(bi)))
typedef long long ll;
const ll INF = INT_MAX;
const int MOD = 1e9+7;
mt19937 ayahya(chrono::high_resolution_clock().now().time_since_epoch().count());
#include "game.h"
vector<vector<int>> ara;
vector<int> par;
vector<int> sz;
int find_par(int node){
	if (par[node]==node) return node;
	return par[node]=find_par(par[node]);
}
void initialize(int n) {
	ara.resize(n,vector<int>(n,0));
	par.resize(n);
	iota(par.begin(), par.end(), 0);
	sz.resize(n,1);
}
int hasEdge(int u, int v) {
	if (find_par(u)==find_par(v)){
		return 0;
	}
	u=find_par(u);
	v=find_par(v);
	if (sz[u]>sz[v]) swap(u,v);
	if (ara[u][v]==sz[u]*sz[v]-1){
		par[v]=u;
		sz[u]+=sz[v];
		sz[v]=0;
		for (int i = 0; i < par.size(); ++i)
		{
			if (find_par(i)==u || find_par(i)!=i) continue;
			ara[u][i]+=ara[v][i];
			ara[i][u]+=ara[i][v];
			ara[v][i]=ara[i][v]=0;
			ara[i][v]=ara[v][i]=0;
		}
		return 1;
	}
	else {
		ara[u][v]++;
		ara[v][u]++;
		return 0;
	}
}

Compilation message (stderr)

game.cpp:1: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    1 | #pragma optimize("Bismillahirrahmanirrahim")
      | 
game.cpp: In function 'int hasEdge(int, int)':
game.cpp:54:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |   for (int i = 0; i < par.size(); ++i)
      |                   ~~^~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 58 / 58