Question

1-Please complete the below python programs. Use spaces for indentations since the website does not take tabs.

#inputs to the function are 2 numbers x and y. Print "Sum 6!" if the sum of x and y is bigger or equal to 6. Print "Sum too small!" otherwise.

def sum_6(x,y):

#your answer here, can be multiple lines

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#input to the function is a list of integers. The function will calculate and return a resultlist with the square of each number in the input list saved in it. For example: if mylist has numbers 1,2,3,4,5, the returned value should be a list with 1,4,9,16,25.

def square_num (mylist):

#your answer here, can be multiple lines

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#in this main function, create a list with 6 numbers, call the second function in this question, print out the returned result.

def main ():

#your answer here, can be multiple lines

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2-Write down the regular expression that can match: a string with 1 or more digits followed by exactly 2 small case letters. Sample string: 5678yr. (You do not need to consider the " ")

(same as the below question) Make sure you only write down the regex. Please do NOT include other things like / / around it. You do not need to consider any blanks before or after the regex, nor sentence starting/ending symbols.

Answer:

3-Write down the regular expression that can match: a float with 1 or more digits before the decimal point and exactly 2 digits after. Sample: 2345.34

(same as the below question) Make sure you only write down the regex. Please do NOT include other things like / / around it. You do not need to consider any blanks before or after the regex, nor sentence starting/ending symbols.

Answer:

Answer 1

#QUESTION 1:
Below is a screen shot of the python program to check indentation. Comments are given on every line explaining the code.

Below is the output of the program:


Below is the code to copy:
#CODE STARTS HERE----------------

# 1 a.
def sum_6(x,y): #Function sum 6
   if x+y>=6: #Find if sum is greater than or equal to
      print("Sum 6!")
   else:
      print("Sum too small!")
sum_6(5,1) #Function called here

#1 b.
def square_num(mylist):
   new_list = [] #New list to store squared numbers
   for num in mylist: #Loop through the list
      new_list.append(num**2) #Store squared numbers in new_list
   return new_list #Return new list

#1 c.
def main(): #main function
   li = [1,2,3,4,5,6] #List created with 6 numbers
   print(square_num(li)) #Call square_num function and print returned result

main() #Main function call
#CODE ENDS HERE------------------

QUESTION 2:

REGULAR EXP: \d+[a-z]{2}

• \d matches any digit character
• '+' matches 1 or more occurence of preceding character
• [a-z] matches any lowercase alphabet
• {2} matches exactly 2 numbers of preceding characters

EXAMPLE:

MATCHES:

• 12565464as
• 55sa
• 1ko

DOES NOT MATCH:

• 45a4s
• 554kkkk
• jhh

QUESTION 3:

REGULAR EXP: \d+\.\d{2}

• \d matches any digit character
• '+' matches 1 or more occurence of preceding character
• \. matches a '.'
• {2} matches exactly 2 numbers of preceding characters

EXAMPLE:

MATCHES:

• 45.45
• 888888.99
• 0.11
• 115.25

DOES NOT MATCH:

• 888
• 122.3