Submission #207139

#	Time	Username	Problem	Language	Result	Execution time	Memory
207139		aloo123	Game (IOI14_game)	C++14	0 / 100	5 ms	376 KiB

game

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define f first
#define s second
#define mp make_pair
#define pb push_back
#define vll vector<ll>
#define pll pair<ll,ll>
using namespace std;

const ll N = 2e6+5;
const ll MOD = 1e9+7;
ll sz[1505];
ll par[1505];
ll cc;
bool fl = false;
ll a=-1,b=-1;
void make_set(ll nd){
	sz[nd] = 1;
	par[nd] = nd;
}

ll findpar(ll nd){
	if(par[nd] == nd) return nd;
	else return par[nd] = findpar(par[nd]);
}

void merge(ll u,ll v){
	u = findpar(u),v = findpar(v);
	if(u == v) return ;
	if(sz[u] > sz[v]) swap(u,v);
	sz[v] += sz[u];
	par[u] = v;
	cc--;
}

void initialize(int n){
	for(int i = 1;i<=n;i++) make_set(i);
	cc =n;
	
}

int hasEdge(int u, int v){
	++u,++v;
	if(fl == false) {
		fl = true;
		merge(u,v);
		a = u;
		return 1;
	}
	if(findpar(u) == findpar(v)){
		return 1;
	}
	if(b == -1){
		if(findpar(u) == findpar(a)){
			return 0;
		}	
		if(findpar(v) == findpar(a)){
			return 0;
		}
		b= u;
		merge(u,v);
		return 1;
	}
	else{
		if(findpar(u) == findpar(a) || findpar(a) == findpar(v)){
			merge(u,v);
			return 1;
		}	
		if(findpar(u) == findpar(b) || findpar(b) == findpar(v)){
			merge(u,v);
			return 1;
		}
		return 0;
	}

}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 27
• Subtask 3: 0 / 58