Question

*********C Language*******

Write a file final_main.c

4. Inside main(void):

Write a loop that oops until the entered number is 0 or negative

5. Ask the user to enter a positive int between 0 and 10 inclusive

6. If the number is < 1, it terminates.

7. Else: call the above four functions

8. Print the result of each function after its call.

Q2. Write a program that removes the punctuations letters from a file and display the output to the screen. It will only keep lettes, digits, and spaces, tabs, new lines.

Q1. Write a C program that has tools.h, tools.c, and final_main.c

1. In a file tools.h write the headers of these functions:

unsigned long long fac_rec(unsigned int x);

unsigned long long fac(unsigned int x);

unsigned long long fib_rec(int n);

unsigned long long fib(int n);

2. In a file tools.c, write the definitions of these functions:

unsigned long long fac_rec(unsigned int x)

unsigned long long fac(unsigned int x)

unsigned long long fib_rec(int n)

unsigned long long fib(int n)

3. Write a file final_main.c

4. Inside main(void):

Write a loop that oops until the entered number is 0 or negative

5. Ask the user to enter a positive int between 0 and 10 inclusive

6. If the number is < 1, it terminates.

7. Else: call the above four functions

8. Print the result of each function after its call.

Q2. Write a program that removes the punctuations letters from a file and display the output to the screen. It will only keep lettes, digits, and spaces, tabs, new lines.

Answer 1

please do upvote.If you have any problem do comment and i shall be happy to help you.Thanks for using HomeworkLib.

Note: I have answered the first question only as per HomeworkLib's policy

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//tools.h

unsigned long long fac_rec(unsigned int x);
unsigned long long fac(unsigned int x);
unsigned long long fib_rec(int n);
unsigned long long fib(int n);

-----------------------------

//tools.c

#include "tools.h"

unsigned long long fac_rec(unsigned int x)

{
   if (x == 1) //factorial of 1 is 1
   {
       return 1;
   }
   else
   {
       unsigned long long answer = fac_rec(x - 1); //calculate factorial of previous number
       return x *answer;
   }
}

unsigned long long fac(unsigned int x)
{
   int a;
   int answer = 1;

   //calculate factorial of x using loop
   for (a = x; a > 1; a--)
   {
       answer = answer * a;
   }
   if (x == 0)
   {
       answer = 1;
   }
   return answer;
}

unsigned long long fib_rec(int n)
{
   if (n == 0)
   {
       return 0;
   }
   if (n == 1)
   {
       return 1;
   }

   //calculate fibonacci of previous two numbers
   unsigned long long a = fib(n - 1);
   unsigned long long b = fib(n - 2);

   return a + b;
}

unsigned long long fib(int n)
{

   int old = 1;
   int present = 1;
   int upcoming = 1;
   int a = 0;

   //calculate fibonacci of nth number using loop
   for (a = 3; a <= n; ++a)
   {
       upcoming = present + old;
       old = present;
       present = upcoming;
   }
   return upcoming;
}

---------------------

//final_main.c

#include<stdio.h>
#include<conio.h>
#include"tools.h"

void main()
{
   int num = 0;
   long result = 0;
   while (1)
   {
       //get input
       printf("enter a positive int between 0 and 10 inclusive: ");
       scanf_s("%d", &num);

       if (num < 1)
       {
           break;
       }

       //outputs
       result=fac_rec(num);
       printf("result of fac_rec : %ld \n", result);
       result = fac(num);
       printf("result of fac : %ld \n", result);
       result = fib_rec(num);
       printf("result of fib_rec : %ld \n", result);
       result = fib(num);
       printf("result of fib : %ld \n", result);

   }
}

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