Spoj/Normalized Form.cpp at master · SharmaManish/Spoj · GitHub

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#include<iostream>
#include<cstring>
#include<list>
#include<stdio.h>

using namespace std;

struct node
{
       public:
       int val;
       bool b;
};

int main()
{
    string s;

    while(true)
    {
               list<node> l1;
               int count=0;

               int b1=-1;

               cin>>s;

               if(s=="()")
               break;

               for(int i=0;i<s.length();i++)
               {
                       if(s[i]=='(')
                       {
                                    count++;
                                    node temp;

                                    temp.val=-1;
                                    temp.b=0;

                                    l1.push_front(temp);
                       }

                       else if(s[i]=='T')
                       {
                                    node temp;

                                    temp.val=count;
                                    temp.b=1;

                                    l1.push_front(temp);
                       }

                       else if(s[i]=='F')
                       {
                            node temp;

                            temp.val=count;

                            temp.b=0;

                            l1.push_front(temp);
                       }

                       else if(s[i]==')')
                       {
                            int count2=-1;

                            do
                            {
                                             node t1=l1.front();

                                             count2=t1.val;

                                             if((t1.val)%2==0)
                                             {
                                                            if(b1==-1)
                                                            b1=0;

                                                            b1=t1.b|b1;
                                             }

                                             else
                                             {
                                                 if(b1==-1)
                                                 b1=1;

                                                 b1=t1.b|b1;

                                             }

                                             count--;

                                             l1.pop_front();

                            } while(count2!=-1);

                            node temp;

                            temp.val=count;
                            temp.b=b1;

                            l1.push_front(temp);


                       }

               }

               if(b1==1)
               printf("true\n");

               else if(b1==0)
               printf("false\n");

    }

    system ("pause");

    return 0;

}