Cod sursa(job #2157352)

Utilizator bogdanbenteaBentea Bogdan bogdanbentea Data 9 martie 2018 15:50:40
Problema Perle Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.64 kb
#include <fstream>
using namespace std;
ifstream cin("perle.in");
ofstream cout("perle.out");

int l,i,j,n,v[10002],x;

void c(int &x);
void b(int &x);

void b(int &x)
{
    if(x<=l)
    {
        if(v[x]==2)
        {
            x++;
            b(x);
        }
        else
        {
            if(v[x]==1&&x+2<=l)
            {
                x=x+2;
                if(v[x]==3&&x+2<=l)
                {
                    x=x+2;
                    c(x);
                }
            }
        }
    }
}

void c(int &x)
{
    if(x<=l)
    {
        if(v[x]==2)
            x++;
        else
        {
            if(v[x]==3)
            {
                x++;
                b(x);
                x++;
                c(x);
            }
            else
            {
                if(v[x]==1&&x+1<=l)
                {
                    x++;
                    if(v[x]==2&&x+1<=l)
                        x++;
                }
            }
        }
    }
}

int main()
{
    cin>>n;
    for(i=1;i<=n;i++)
    {
        cin>>l;
        for(j=1;j<=l;j++)
            cin>>v[j];
        if(l==1)
        {
            if(v[1]<=3)
                cout<<1<<'\n';
            else
                cout<<0<<'\n';
        }
        else
        {
            x=1;
            b(x);
            if(x==l+1)
                cout<<1<<'\n';
            else
            {
                x=1;
                c(x);
                if(x==l+1)
                    cout<<1<<'\n';
                else
                    cout<<0<<'\n';
            }
        }
    }
    return 0;
}