If Statement on SourFox

Atm Bill Dispenser

Fri, 09 Aug 2024 19:17:12 +1000

Today, I was given an assignment to write a program to implement an atm dispenser in the following notes: 100, 50, 20, 10, and 5. If the amount is not a multiply of 5, the atm will return a list of 0.

In the code are short explanations of why I used it.

# asks the customer to enter an amount of number.
atm = int(input("Enter an amount in a multiple of 5: "))

# This takes in a amount parameter which is the input  from the user and return an array of bills in the following orders: [$100, $50, $20, $10, $5]. 
def dispenser(amount):
    
    # if statement to check if number entered is divisible by 5. If not, return with 0, if yes, continue code.
    if atm % 5 != 0:
        return [0, 0, 0, 0, 0]
    
    result = []
    bill_types = [100, 50, 20, 10, 5]

# starts with the starting amount being divided by each number in bill_types.
    for each_note in bill_types:
        note_counts = amount // each_note
        result.append(note_counts)

        # get the remainder and overwrite the previous.
        amount = amount % each_note

    return result

# The code below is what will be given back as a sentence to the customer.
print(f"You entered ${atm}: {dispenser(atm)}")

Finding the GCD of two numbers

Fri, 12 Jul 2024 12:43:30 +1000

In this assignment, it’ll be finding the GCD(Greatest Common Divisor). This means I need to write a program to find the GCD of two numbers. Below, I have written the program and next to the hashtags are just a sentence that’ll explain to you what each part of the code is doing.

#The two variables 'num' and 'ber' will be where the inputs will be stored in. When it starts it will show '(num)a: ' and you'll have to put a number in. This goes the same for '(ber)b: '

num = int(input("a: "))
ber = int(input("b: "))

#Then once the variable has gotten their information, they will go through this: 

def gcd(num, ber):
    if ber == 0:
        return num
    else:
        return gcd(ber, num % ber)
    
#And last, it'll gather their answer and print it for you as a sentence.

print(f"The GCD {num}, {ber} is {gcd(num, ber)}.")

That’s all today. Bye!

Check if a year is a leap year

Tue, 14 May 2024 17:43:09 +1000

Today, I just got back to python after a few months. So when coming back, I got an assignment. My assignment was to check if a year is a leap year. In the assignment, it also gave hints. These were the hints:

A leap year is a calendar year that contains an additional day (February 29th) compared to a common year. It occurs once every four year. s This is how you can determine if a year is a leap year or not:

Make a Frequency Dictionary From the Elements Of a List

Sun, 25 Feb 2024 18:00:14 +1100

Halo! Today I have to make a python program that meets these conditions:

Write a Python program that creates and print a dictionary that maps each element in a list to its corresponding frequency (how many times it occurs in the list).
The test should be case-sensitive. Therefore, “A” should not be considered the same element as “a”.

I think for today, I’m just going to make it short. Yea…

Finding the Second Largest Value in a List

Sat, 10 Feb 2024 19:35:52 +1100

Halooo! Today I’ll be teaching you how to find the second largest value in a list. The conditions -

Write a Python program that prints the second largest value in a list.
If the list is empty or only has one element, print None.SSS

To do this, we’ll have to make a list and then sort it and then we use the if statement and else.

Input:

lista = [1, 4, 8, 9, 100, 200, 30]
lista.sort()

if len(lista) > 1:
    print(lista[-2])
else:
    print("None")

Output -

Bonus assignment: Challenge Add a Key-Value Pair Only if the Key is Not in the Dictionary

Sat, 18 Nov 2023 18:51:34 +1100

Today I was very bored so I checked my bonus assignments and I got this.

Write a Python program that adds a new key-value pair to a dictionary only if the key doesn’t exist already.
If the key-value pair exists in the dictionary, do not update the existing value. The dictionary should not be modified in this case.
Store the new key in the new_key variable and the new value in the new_value variable. Print the final value of the dictionary.

Check if a Key Is in a Dictionary

Wed, 15 Nov 2023 20:31:21 +1100

The next one I’ll actually explain thoroughly.

So I had enough time to make another program. This time I had to meet the condtitions:

Write a Python program that checks if a key exists in a dictionary or not.
 
If the key exists in the dictionary, print True. Else, print False.

The key should be stored in the variable key.

Here is how I did it:

Input:

dict = {"toy": "dino", "sport": "soccer", "food": "ramen"}
key = "toy"
if key in dict:
    print(True)
else:
    print(False)

Output:

Assignment 5: Elements and Indices

Sat, 11 Nov 2023 19:08:38 +1100

Today I had to do another assignment which is to create a python program which prints the elements of a list followed by their corresponding indices. Each element and its index must be on the same line seperated by a space. And if the list is empty, print “Empty List”.

I’m going to make a list called num and put 1 to 4 inside.

num = [1, 2, 3, 4]

Then I’ll use the if statement to do:

Assignment 4: Checking if a list is empty

Sun, 29 Oct 2023 18:42:54 +1100

I was given an assignment for the fourth time. My goal was to write a python program that checks if a list is empty or not. If the list is empty, then it’ll print empty, if not, it’ll print not empty.

I’m going to start with an empty list.

emp = []

So that I can start the next step. I’m going to use

if statement
len()
else
print()

When using if, there must be a condition met. My condition is: