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#include <stdio.h>

void display(int arr[], int length) {
  for (int i = 0; i < length; i++) {
    printf("%d ", arr[i]);
  }
  printf("\n");
}

// 1

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Misconception: "Waiting" if and while

Researchers have found that some students hold the following misconception: if statements "wait" for their conditional statement to become true. When that happens (at whichever point in the program), the corresponding block of code is executed.

For instance, consider this program:

size = 0
if size == 5:

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>>>def twice(x):
...   return x * 2
...
>>>

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# Create a function that given a number, 
# computes the value of the number times 2


# def twice(n):
#     """
#     (number) -> number
#     Produce twice the value of the given number
#     """

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# The Kapehan coffee shop sells coffee 
# beans at P850 per kilo plus the 
# cost of shipping. Each order ships 
# for P185 per kilo + P250 fixed cost
# per shipment for overhead. 
# Write a function that calculates the 
# cost of an order. 


# def order_cost(kilos):
#     """

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someFunction :: [a] -> [a]
someFunction (_:_:_:xs) = xs
someFunction _          = []

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-- from Don Sanella
-- http://www.inf.ed.ac.uk/teaching/courses/inf1/fp/

searchRec :: Eq a => [a] -> a -> [Int] 
searchRec xs y = srch xs y 0
where
    srch :: Eq a => [a] -> a -> Int -> [Int]
    srch [] y i     = []
    srch (x:xs) y i
        | x == y    = i : srch xs y (i+1)

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public class AList {
  private String[] items;
  private int count;
  
  public AList() {
    items = new String[10];
    count = 0;
  }
  
  public void add(String item) {

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import junit.framework.TestCase;

/**
 * A JUnit test case class.
 * Every method starting with the word "test" will be called when running
 * the test with JUnit.
 */
public class AListTest extends TestCase {
  
  

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public class BoatRide implements Chargeable {
  private double baseFare;
  private double distance;
  
  public BoatRide(double baseFare, double distance) {
    this.baseFare = baseFare;
    this.distance = distance;
  }
  
  public double cost() {