C Answers

Write a  C program to get all possible two digit letter combinations from a digit (1 to 9) string. 

Write a C program to remove and print every third number from a list of numbers until the list becomes empty. 

One large chemical company pays its salespeople on a commission basis. The salespeople receive $200 per week plus 9% of their gross sales for that week. For example, a salesperson who sells $5000 worth of chemicals in a week receives $200 plus 9% of $5000, or a total of $650. Develop a program that will prompt the user for a salesperson’s gross sales and will calculate and display that salesperson's earnings. Process one salesperson's figures at a time, use the sentinel value -1 to terminate the program. A sample input/output dialog for the program is below:

Write a program that let's you input a string. The program then should push the characters of the string onto a stack, one by one, and then pop the characters from the stack and display them. This results is displaying the string in reverse order.

Devise a c programming interface for a stack, i.e a (stack.h) header file. Your stack should not arbitrarily add constraint(i.e: max depth of stack).

Taylor series expands function into a finite sequence of a variable x or a finite series plus a

remainder. A complex electromagnetic signal transmitted from a radio transmitter can be

decomposed into its components by using Taylor approximation, which is equivalent to estimating

the parameters of complex exponential functions. Let x(t) be a signal transmitted. Develop a C-

script that calculates the following Taylor series approximation of function f(x) for N number of

terms. Where N is the largest whole number which is a factor of both 42 and 98. You can select any

positive real value of x.

f (x) = ∑

𝒙

𝒏

𝒏!

𝑵

𝒏=𝟎

= 1 +

𝒙

𝟏!

+

𝒙

𝟐

𝟐!

+

𝒙

𝟑

𝟑!

........

Note : Don't use arrays, do with loops

Octal number system has been popularly used as a potential number system in computing texts,

graphics, and especially file protection systems in UNIX operating system. Develop a C- script that

takes a decimal number as an input and produces its equivalent octal number.

[DoB]10 = (----)8

DoB: Date of birth

Note : Don't use array, do with loops

A toy company manufactures electronic learning boards for kids to learn alphabets. Accordingly,

when a kid presses 1 alphabet a is shown on the screen, and when 2 is pressed ab is shown along

with the previous alphabet and so on. The patterns are likely to be as follow:

a

ab

abc

abcd

abcde

:

:

:

:

a

Develop a C-script which generates the above-mentioned pattern.

Note : Don't use array ,just use loops

A toy company manufactures electronic learning boards for kids to learn alphabets. Accordingly,

when a kid presses 1 alphabet a is shown on the screen, and when 2 is pressed ab is shown along

with the previous alphabet and so on. The patterns are likely to be as follow:

a

ab

abc

abcd

abcde

:

:

:

:

abcdefghijklmnopqrstuvwxyz

Develop a C-script which generates the above-mentioned pattern

Note: Don't use array , do with loops

Write a program to implement the Merge sort algorithm with the space optimization for

auxiliary space O(n/2)