Cod sursa(job #1153681)

Utilizator sorynsooSorin Soo sorynsoo Data 25 martie 2014 17:33:19
Problema Bool Scor 20
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.83 kb
#include <fstream>
#include <string.h>
using namespace std;
ifstream cin("bool.in");
ofstream cout("bool.out");
char v[1003],*p=v,aux[10],x;
int i,n;
bool var[30];
bool a(); // a pentru OR
bool b(); // b pentru AND
bool c(); // eva
void spatiu();
int main()
{
    cin.getline(v,1001);
    cin>>n; cin.getline(aux,9);
    for(i=1; i<=n; i++)
    {
        cin>>x;
        if(var[x-'A']==0)
            var[x-'A']=1;
        else
            var[x-'A']=0;
        p=v;
        cout<<a();
    }
}
bool a() // OR
{
    int val=b(); spatiu();
    while(*p=='O' || *(p+1)=='R')
    {
        *p++; *p++;
        if(val==1 || b()==1)
            val=1;
        else
            val=0;
    }
    return val;

}
bool b() // AND
{
    int val=c(); spatiu();
    while(*p=='A' && *(p+1)=='N' && *(p+2)=='D')
    {
        *p++; *p++; *p++;
        if(val==1 && c()==1)
            val=1;
        else
            val=0;
    }
    return val;
}
bool c()
{
    bool inv=false;
    int val=0; spatiu();
    while(*p=='N' && *(p+1)=='O' && *(p+2)=='T')
        {
            if(inv==false)
                inv=true;
            else
                inv=false;
            *p++; *p++; *p++;
            spatiu();
        }
    if(*p=='(')
    {
        p++;
        val=a();
        ++p;
    }
    if(*p>='A' && *p<='Z')
    {
        val=var[*p-'A'];
        p++;
    }
    if(*p=='T' && *(p+1)=='R' && *(p+2)=='U' && *(p+3)=='E')
    {
        p++; p++; p++; p++;
        val=1;
    }
    if(*p=='F' && *(p+1)=='A' && *(p+2)=='L' && *(p+3)=='S' && *(p+4)=='E')
    {
        p++; p++; p++; p++; p++;
        val=1;
    }
    if(inv==true)
    {
        if(val==1)
            val=0;
        else
            val=1;
    }
    return val;
}
void spatiu()
{
    while(*p==' ')
        p++;
}