Lab 03

Classifying a value
At the end of this problem you should submit to Laulima:
- a file named UHusername_classifying_a_value.c
- Create a program that will accept a number and then print a message depending on it's value and also print out the value of the entered number
  Here are some addition requirements:
  - [value] = the value of the entered number
  - if the value is less than 0, then print out
```
You've entered [value], and it is a negative number.
```
    - example:
      You've entered -1.1, and it is a negative number.
  - if the value is (equal and greater than 0) and also (equal and less than 100), then print out
```
You've entered [value], and it is a valid exam score.
```
    - example:
      You've entered 80.12, and it is a valid exam score.
  - if the value is greater than 100, then print out
```
You've entered [value], and it is an invalid exam score.
```
  - the program must handle decimal numbers and negative numbers
Comparing two values
At the end of this problem you should submit to Laulima:
- a file named UHusername_comparing_two_values.c
- Create a program that will accept 2 numbers and then print the difference between the two numbers as well as a message depending on which number is greater
  Here are some addition requirements:
  - [difference] = the difference between the 2 values
  - if the first value is greater, then print out
```
The first value is greater than the second value by [difference]
```
    - example:
      The first value is greater than the second value by 2.3."
  - if the second value is greater, then print out
```
The second value is greater than the first value by [difference]
```
    - example:
      The seconde value is greater than the first value by 2.3
  - The difference should never be displayed as a negative number
    - this should not happen:
      The first value is greater than the first value by -2.3
  - if the first and second value are equal, then print out
```
Both values are equal.
```
Classifying characters
At the end of this problem you should submit to Laulima:
- a file named UHusername_classifying_characters.c
- Create a program that will accept a character and then print out a message that contains the character and informs the user if the character is uppercase or lowercase
  Here are some addition requirements:
  - [character] = the character entered
  - if the character is uppercase, then print out
```
You've entered "[character]", and it is uppercase.
```
    - example:
      You've entered "A", and it is uppercase.
  - if the character is lowercase, then print out
```
You've entered "[character]", and it is lowercase.
```
    - example:
      You've entered "a", and it is lowercase.
  - if the is a special character like #, *, (, ^, or etc then print out
```
You've entered an invalid character, "[character]".
```
    - example:
      You've entered an invalid character, "*".