Submission #148758

#	Time	Username	Problem	Language	Result	Execution time	Memory
148758		test team (#200)	Bulb Game (FXCUP4_bulb)	C++17	0 / 100	2 ms	376 KiB

bulb

#include "bulb.h"
#include<bits/stdc++.h>
using namespace std;
int l[300100],r[300100];
vector<int> wen,owe;
void dfs(int node)
{
    if(wen[node]==-1)
        l[node]=1;
    if(wen[node]==-2)
        l[node]=2;
    if(wen[node]>=0)
    {
        dfs(wen[node]);
        l[node]=l[wen[node]];
    }
    if(owe[node]==-1)
        r[node]=1;
    if(owe[node]==-2)
        r[node]=2;
    if(owe[node]>=0)
    {
        dfs(owe[node]);
        r[node]=l[owe[node]];
    }
}
int FindWinner(int T, std::vector<int> L, std::vector<int> R){
	int N = L.size();
	for(int i=0;i<N;i++)
    {
        wen.push_back(L[i]);
        owe.push_back(R[i]);
    }
    dfs(0);
    if(l[0]==1)
        return 0;
    int first=0,node=0;
    while(r[node]==2)
    {
        if(wen[node]<0)
            return 1;
        node=wen[node];
    }
    if(owe[node]<0)
        return 1;
    node=owe[node];
    while(r[node]==2)
    {
        if(wen[node]<0)
            return 1;
        node=wen[node];
    }
    return 0;
}

Compilation message (stderr)

bulb.cpp: In function 'int FindWinner(int, std::vector<int>, std::vector<int>)':
bulb.cpp:37:9: warning: unused variable 'first' [-Wunused-variable]
     int first=0,node=0;
         ^~~~~

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