Cod sursa(job #1882707)

Utilizator sandupetrascoPetrasco Sandu sandupetrasco Data 17 februarie 2017 13:51:46
Problema Bool Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.27 kb
#include <bits/stdc++.h>
#define IOS ios_base::sync_with_stdio(0);
#define tie cin.tie(0);
#define mp make_pair
#define ll long long
#define PII pair<int, int>
#define PLL pair<ll, ll>
#define zeros(x) ( (x ^ (x - 1)) & x )
  
using namespace std;
 
int n, cnt;
string s;
char rs[2005], c;
bool u[2005];

bool evaluate(int p);
bool ter(int p);

bool fac(int p)
{
	bool r;
	if (rs[p] == 'N' && rs[p+1] == 'O'){ p += 3; return !fac(p);}
	else if (rs[p] == 'T' && rs[p+1] == 'R'){ p += 4; return true;}
	else if (rs[p] == 'F' && rs[p+1] == 'A'){ p += 5; return false;}
	else if (rs[p] == '(') ++p, r = evaluate(p), ++p;
	else r = u[rs[p]], ++p;
	return r;
}

bool ter(int p)
{
	bool r = fac(p);
	while (rs[p] == 'A' && rs[p+1] == 'N') p += 3, r &= fac(p);
	return r;
}


bool evaluate(int p)
{
	bool r = ter(p);
	while (rs[p] == 'O' && rs[p+1] == 'R') p += 2, r |= ter(p);
	return r;
}
int main(){
    IOS tie
    ifstream cin("bool.in");
    ofstream cout("bool.out");
    getline(cin, s);
    for (int i = 0; i < s .size(); i++)
	{
		if (s[i] == ' ') continue;
		rs[++cnt] = s[i];
	}
	cin >> n;
	for (int i = 1; i <= n; i++)
	{
		cin >> c;
		u[c] = !u[c];
		int p = 0;
		cout << evaluate(p);
	}
    cerr << "Fucking time elapsed: " << clock() * 1000.0 / CLOCKS_PER_SEC << " ms" << '\n';
    return 0;
}