Question

c++ launguage please help

The game Pico Fermi Bagel is a number guessing game. The computer picks a secret number: the secret number must be 3 digits, none of the digits can be the same, and it cannot start with a zero. 104 is OK, but 091 and 212 are not. The user tries to guess the secret number - if none of the digits in the user's number are in the secret number, then the program replies with BAGEL (or B). For each digit in the user's number that is in the secret number but not in the right place value, the program replies PICO (or P). For each digit in the user's number that is in the secret number and is in the right place, the program replies FERMI (or F). When the user has Fermi Fermi Fermi (FFF) the secret number has been found.

In a file, write the secret number, then write the user guess and its result (e.g. 123 B, 456 FF, 789 P, 846 FFF). When the user wins, write the number of guesses it took. Allow the user to quit the program and allow the user to play again. If the user quits, display the secret number.

After your project is complete, you will be assessed on the following:

• Generating random numbers
• Use of the modulus
• Text file operations : writing a file
• Conditionals : if, if-else, switch
• Loops : while, do-while, for

Answer 1

#include<iostream>
#include<math.h>
#include<stdlib.h>
#include<fstream>
using namespace std;
//method to generate the random number
int generate()
{
    int n,a,b,c,opt;
    while(1)
    {
    n = rand() % ( 999 - 100 + 1 ) + 100;
    a=n%10;
    b=(n/10)%10;
    c=n/100;
    if(a!=b && b!=c && a!=c && c!=0)
    break;
   }
    return n;
}
//driver program
int main()
{
   int n,a,b,c,m,i,j,opt,count=0,x,y;
   //declare file object for write purpose
    ofstream outfile;
    //open a file for write purpose
    outfile.open("output.txt");
    //condition for unable to open
    if(!outfile)
    {
       cout<<endl<<"Unable to open the file";
       exit(0);
   }
   //loop to control the menu operations
   while(1)
   {
      cout<<endl<<"1. PLAY 0. EXIT";
      cout<<endl<<"Enter your choice";
      cin>>opt; //read the choice
      count=0;
      if(opt==1) //condition for play
      {
      n=generate(); //generate the random number
      cout<<endl<<"Generated number "<<n;
        
      for(;;count++) //loop till user enter the correct number
      {
      //read the number from user
      do
      {
      cout<<endl<<"Enter a three digit number";
      cin>>m;  
       }while(m<100 || m>999);//validate the users entry number
   if(n==m)   //if the number same with generated number
   {
   cout<<endl<<n<<" "<<m<<" "<<"FFF"; //write FFF
   outfile<<endl<<n<<" "<<m<<" "<<"FFF"; //write FFF
   cout<<endl<<"Number of guesses : "<<count+1;
   outfile<<"Number of Guesses : "<<count+1;
   break;  
   }
   else
       {
           c=0;//set count to 0
           i=n;//assign the generated numbet to i
           j=m;//assign user entry number to j
           while(j!=0)
           {
              a=(j%10);
              i=n;
              while(i!=0)
              {
                 if(a==i%10)
                 c++;
                 i=i/10;
               }
               j=j/10;
           }
             
       b=0;//count the similarity of digits in relative position
           //check for relative positions
           for(i=n,j=m;i!=0;i/=10,j/=10)
           {
               x=i%10;
               y=j%10;
               if(x==y)
               b++;  
           }
             
               if(c==3)//digits of guessed number is in generated number but not in relative position
               {
                  //cout<<endl<<n<<" "<<m<<" "<<"P";//write into console
                  outfile<<endl<<n<<" "<<m<<" "<<"P";//write into file
               }
                        
           else
           if(b==2)//two digits are in relative positions
           {
           // cout<<endl<<n<<" "<<m<<" "<<"FF";
               outfile<<endl<<n<<" "<<m<<" "<<"FF";  
               }
             
           else
           if(b==1)//single digit is relative positions
           {
           // cout<<endl<<n<<" "<<m<<" "<<"F";
                   outfile<<endl<<n<<" "<<m<<" "<<"F";  
                   }
             
           else
           {
               //cout<<endl<<n<<" "<<m<<" "<<"B";
               outfile<<endl<<n<<" "<<m<<" "<<"B";
           }
             
          
       }
  
           }
   }
   else
   if(opt==0)
   break;
}
outfile.close();//close the file
}

output

contents of file