Programming: Write the following programs using C language. Each program should date of creation on the top (use comments). Write a clear and properly indented code and use comments properly.

1. Simple if statement program.

2. Read from a file and do computation and write the output to a file.

3. Write a program that computes the factorial or the power with the use of functions.

4. Write a conversion program. (e.g. kilos to pounds, feet to inches, uk pounds to us dollars). The program must have different functions for:

a. input.

b. conversion

c. output

5. Write a program that creates a two-dimensional array and prints a specific output.

6. Array of Strings (creation, manipulation).