Introduction to Programming 2025/2026 (CC1024) - DCC/FCUP

Practical Class #03 - Functions (06/10 to 10/10)

Exercises for submission

In what concerns the "exercises during classes" component of the evaluation, the exercises that you can submit for this class are:

[IP023] Summing Numbers (weight 10%) (main exercise)
[IP024] Freezing in here (weight 15%) (main exercise)
[IP025] All in one (weight 15%) (main exercise)
[IP026] And may the odds... (weight 20%) (main exercise)
[IP027] Like the frog, get it? (weight 20%) (main exercise)
[IP028] Factorial Frenzy (weight 20%) (main exercise)
[IP029] Collatz Sequence (weight 25%) (extra exercise)
[IP030] Numerus Maximus! (weight 25%) (extra exercise)
[IP031] Just an Average Party (weight 30%) (challenge exercise)
[IP032] The Prime Suspects (weight 30%) (challenge exercise)

Deadline for submission: October 25th (submit to IP's Mooshak)

You are encouraged to talk to the professors and your colleagues if you encounter difficulties. However, any more direct help that you have received from other colleagues or LLMs should be acknowledged in the comments of the code you submit.
After the deadline the problems will still be available on Mooshak, but the submissions will not count towards your grade.
Each practical class is worth 10% of your final component for exercices during class. Since there will be 11 classes with submissions, you can achieve maximum grade even without doing all classes.
For a problem to count you must pass all tests (that is, to have an accepted). Even if you solve all problems, the maximum on one class is 100%.
To obtain 100% it will always be enough to solve the main exercises.

With the exercises in this class you will develop the following skills:

Explore function definition and function calling
Explore argument passing and return statements
Practice breaking down problems into smaller tasks by writing functions
Explore how functions help in reusing code and making it more organized
Consolidate your knowledge of coding, debugging and problem solving

1) My first function submission

On this class all the exercises involve implementing a given function. Here are some notes:

The code you submit to Mooshak should therefore contain a function implementation as described.
Inside the function you should not print anything not explicitly asked on the problem statement.
Outside the function you can however print anything and for instance use the example function calls to test your code.
(in fact we encourage you to actually always test with at least the given examples)
The file you submit to Mooshak should not have a name starting with a digit (e.g. ip023.py is ok but 023.py is not).
(if you are curious why, it is because technically your file will be imported as a module)

To help you get started, here is some Python source code that serves as an example solution to the first problem from this class:

# [IP023] All in one
# Example Solution

# The function definition
def sum(a,b):
    return a+b

# Examples from problem statement
print( sum(1,2)   )
print( sum(-3,3)  )
print( sum(32,10) )
print( sum(7,8)   )
print( sum(4,-7)  )

# Some more examples
print("--------------------------")
print(sum(-1000,1000))
print(sum(40,3))

When executed, this python code will output the following, confirming it answers as expected:

3
0
42
15
-3
--------------------------
0
43

You are now ready to submit! 😺

Submit an Accepted the following problem. Don't forget to test first on your computer!

[IP023] Summing Numbers

2) Testing your knowledge of Python and functions

Can you now do some exercises on your own? 😉

Read the statements, code and try to submit Accepted solutions to all of the following problems. Don't forget to test first on your computer!

Extra exercises for consolidating your knowledge [extra]

Loved the main exercises and craving for more? These extra problems are here to help you sharpen your skills and reward those that are coding for the love of learning 😄

Read the statements, code and try to submit Accepted solutions to the following two problems. Don't forget to test first on your computer!

Challenge exercises [challenge]

You've made it this far, and now it's time for the final challenges! Push yourself, you've got this!

Read the statements, code and try to submit Accepted solutions to the following two problems. Don't forget to test first on your computer!

Happy coding! 😊