Cod sursa(job #3268723)

Utilizator Mihai_999Diaconeasa Mihai Mihai_999 Data 16 ianuarie 2025 20:03:29
Problema Bool Scor 10
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.62 kb
#include <iostream>
#include <fstream>
#define nl '\n'

using namespace std;

const int DMAX = 1201;

char S[DMAX], *p;
int V[26];

ifstream fin("bool.in");
ofstream fout("bool.out");

int expresie();
int termen();
int factor();

int expresie()
{
    int r = termen();
    while (*p == 'O' && *(p + 1) == 'R')
    {
        p += 3;
        r |= termen();
    }
    return r;
}

int termen()
{
    int r = factor();
    while (*p == 'A' && *(p+1) == 'N' && *(p+2) == 'D')
    {
        p+=4;
        r &= factor();
    }
    return r;
}

int factor()
{
    int r;
    if (*p == '(')
    {
        p++;
        r = expresie();
        p++;
    }
    else
    {
        if (*p == 'N' && *(p+1) == 'O' && *(p+2) == 'T')
        {
            p+=4;
            r = !factor();
        }
        else
        {
            if (*p == 'T' && *(p+1) == 'R' && *(p+2) == 'U' && *(p+3) == 'E')
            {
                p+=5;
                r = 1;
            }
            else
            {
                if (*p == 'F' && *(p+1) == 'A' && *(p+2) == 'L' && *(p+3) == 'S' && *(p+4) == 'E')
                {
                    p+=6;
                    r = 0;
                }
                else
                {
                    p+=2;
                    r = V[*p-'A'];
                }
            }
        }
    }
    return r;
}

int main()
{
    int  N;
    char c;
    fin.getline(S, DMAX);
    fin >> N;
    fin.get();
    while (N--)
    {
        fin.get(c);
        V[c-'A'] ^= 1;
        p = S;
        fout << expresie();
    }
    return 0;
}