Algorithm Analysis: Swapping Variables

Code Segments and Variable Swapping

• The program swaps the value of x and y using a temporary variable temp.
• The code segment temp ← x; x ← y; y ← temp is used for swapping.

User Input and Display

• The program displays "What is your name?" and waits for user input.
• The input is stored in name and then displayed with "Hello".
• If the user inputs "Karel", the output will be "What is your name? Hello Karel".

Procedures and Conditional Statements

• The Mystery procedure returns whether a number is even using the modulo operator %.
• The code segment IF (b = 0) { ... } ELSE { ... } is used for conditional statements.

Program Flow and Display

• The program will display "Dog Turtle" as a result of the conditional statements.
• The Mystery procedure is called with an input of 3, resulting in "WOW !!!".

Random Number Generation

• The program generates random numbers x between 1 and 10, and y between 10 and 20.
• The program displays the result of x = y, which can be true or false.

List Operations

• The Mystery procedure returns whether or not a word is in a list.
• The procedure iterates through the list and returns true if the word is found, and false otherwise.

Counting and Indexing

• The Mystery procedure returns the maximum count of consecutive occurrences of a word in a list.
• The procedure iterates through the list and updates the maximum count.

Arithmetic Operations

• The Mystery procedure returns the result of multiplying a number by 5.
• The procedure uses a repeat loop to add the number to a result variable 5 times.

Nested Loops and Counting

• The Mystery procedure returns the result of multiplying two numbers.
• The procedure uses nested repeat loops to increment a result variable.

Input and Output Procedures

• The Mystery procedure returns the input value.
• The procedure uses a repeat loop to increment a result variable by 1 for each input.

List Filtering

• The Mystery procedure filters a list based on a condition.
• The procedure iterates through the list and appends items that meet the condition to a result list.

List Transformation

• The Mystery procedure transforms a list by applying a function to each item.
• The procedure iterates through the list and appends the result of the function to a result list.