Day 3

#Day 3 Challenge focused on fixing code when the items are not intialized

#Code Fix #1
#Original Code
def count_down(start_number):
  while (current > 0):
    print(current)
    current -= 1
  print("Zero!")

count_down(3)

#Fixed Code 
def count_down(start_number):
  current = 3
  while (current > 0):
    print(current)
    current -= 1
  print("Zero!")

count_down(3)
#Output 3, 2, 1, Zero!


#Code Fix #2
#Original Code
x = 1
sum = 0
while x < 10:
	sum = sum + x
	x = x + 1
product = 1
while x < 10:
    product = product * x
    x = x + 1
print(sum, product)
#Ouput 45 1-->incorrect because x for product has not been defined for the second block, so x=10 for the second block which is false

#Correct Code
x = 1
sum = 0
while x < 10:
	sum = sum + x
	x = x + 1
product = x
while x < 10:
    product = product * x
    x = x + 1
print(sum, product)
#Output 45, 10-->this is correct

#In the IDLE
def sum():
    x = 1
    sum = 0
    while x < 10:
        sum = sum + x
        x = x + 1
        def product():
            product = x
            while x < 10:
                product = product * x
                x = x + 1
    print(sum, product)

#Code Fix #3
#Original Code
def print_range(start, end): 
    #loop through the numbers from start to end
    n = start
    while n <=end: 
        print (n)

print_range (1,5) 
#Output should be 1 2 3 4 5 each number on its own line

#Correct Code
def print_range(start, end): 
    #loop through the numbers from start to end
    n = start
    while n <=end: 
        print (n)
        n=n+1 #or n+=1# #Without incrementing through n, this will always be true-->must remember to increment through an iterative
print_range (1,5) 


#Code Fix #4
#Original Code
def is_power_of_two(number):
    while number % 2 == 0:
        number = number/2
    if number == 1:
        return True
    return False

#Output should be 
print(is_power_of_two(0)) # Should be False
print(is_power_of_two(1)) # Should be True
print(is_power_of_two(8)) # Should be True
print(is_power_of_two(9)) # Should be False

#Correct Code
def is_power_of_two(number):
    while number % 2 == 0 and number != 0: # issue is ZeroDivisionError-->must set the while statment to not equal 0
        number = number/2
    if number == 1:
        return True
    return False

#Output should be 
print(is_power_of_two(0)) # Should be False
print(is_power_of_two(1)) # Should be True
print(is_power_of_two(8)) # Should be True
print(is_power_of_two(9)) # Should be False


#Code Completion #1
"The function accepts a variable “number” through its parameters." 
"This “number” variable should be multiplied by the numbers 1 through 5," 
"and printed in a format similar to “1x6=6” (“number” x “multiplier” = “result”)." 
"The code should also limit the “result” to not exceed 25."
#Original Code
def multiplication_table(number):
    # Initialize the appropriate variable
    _=_


    # Complete the while loop condition.
    while _:
        result = number * multiplier 
        if  result > 25:
            # Enter the action to take if the result > 25
            _
        print(str(number) + "x" + str(multiplier) + "=" + str(result))
        
        # Increment the appropriate variable
        _ += 1
#Output
multiplication_table(3) 
# Should print: 
# 3x1=3 
# 3x2=6 
# 3x3=9 
# 3x4=12 
# 3x5=15


multiplication_table(5) 
# Should print: 
# 5x1=5
# 5x2=10
# 5x3=15
# 5x4=20
# 5x5=25


multiplication_table(8) 
# Should print:
# 8x1=8
# 8x2=16
# 8x3=24


#Completed Code
def multiplication_table(number):
    # Initialize the appropriate variable
    multiplier = 1


    # Complete the while loop condition.
    while multiplier <=5: #use this to ensure that the code runs only when the multiplier is less than or equal to 5
        result = number * multiplier 
        if  result > 25:
            # Enter the action to take if the result > 25
            break
        print(str(number) + "x" + str(multiplier) + "=" + str(result))
        
        # Increment the appropriate variable
        multiplier += 1 #incrementing the multplier so that you it only takes numbers 1-5
#Output
multiplication_table(3) 
# Should print: 
# 3x1=3 
# 3x2=6 
# 3x3=9 
# 3x4=12 
# 3x5=15


multiplication_table(5) 
# Should print: 
# 5x1=5
# 5x2=10
# 5x3=15
# 5x4=20
# 5x5=25


multiplication_table(8) 
# Should print:
# 8x1=8
# 8x2=16
# 8x3=24