Submission #149760

#	Time	Username	Problem	Language	Result	Execution time	Memory
149760		Greedy left the chat. (#200)	Bulb Game (FXCUP4_bulb)	C++17	36 / 100	1051 ms	10140 KiB

bulb

#include "bulb.h"
#pragma GCC target("avx2")
#pragma GCC optimization("O3")
#pragma GCC optimization("unroll-loops")
#include<bits/stdc++.h>
#define rc(x) return cout<<x<<endl,0
#define pb push_back
#define mkp make_pair
#define in insert
#define er erase
#define fd find
#define fr first
#define sc second
typedef long long ll;
typedef long double ld;
const ll INF=0x3f3f3f3f3f3f3f3f;
const ll llinf=(1LL<<61);
const int inf=(1<<30);
const int nmax=3e5+50;
const int mod=1e9+7;
using namespace std;
int n,t,i,j,b,s[nmax],l[nmax],r[nmax];
int dfs(int x)
{
	if(x<0)return x;
	if(s[x])return dfs(r[x]);
	else return dfs(l[x]);
}
int FindWinner(int T,vector<int> L,vector<int> R)
{
	n=L.size(),t=T;
	for(i=0;i<n;i++)
	{
		l[i]=L[i];
		r[i]=R[i];
	}
	for(i=0;i<n;i++)
	{
		s[i]^=1;
		b=0;
		for(j=0;j<n;j++)
		{
			s[j]^=1;
			if(dfs(0)==-2)
			{
				b=1;
				s[j]^=1;
				break;
			}
			s[j]^=1;
		}
		if(!b)return 1;
		s[i]^=1;
	}
	return 0;
}

Compilation message (stderr)

bulb.cpp:3:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization("O3")
 
bulb.cpp:4:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization("unroll-loops")

• Subtask 1: 11 / 11
• Subtask 2: 25 / 25
• Subtask 3: 0 / 64