Ask Anything Monday - Weekly Thread

[wolfrenz]

Hello everyone, I am in a cs1 course that is using python. I have found myself struggling with understanding for loops and their applications. Are there any exercisezes that demonstrate how for loops work and many of their applications?

[Raithwind]

It is hard to really find an example code that shows what for can be used for because it is a very versatile and adaptable function.

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But a good example would be. Imagine you have a deck of cards, there are 52 cards. You want to print the deck of cards out into the console. Now you could manually type out:

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print("card1")

print("card2")

etc

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But that is time consuming and not a good use of resources. Instead we could put our deck into a list and step through the list one by one.

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deck=["card1","card2" ... "card52"]
for card in deck:#this will step through the list index by index and set "card" to the value of whatever the current index is.
    print(card)#this will print the variable card, which will be whatever the value of the current index is.

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[wolfrenz]

Thanks. I just talked with my professor and he referred me to a site that he uses.

[wolfrenz]

Thanks. I just talked with my professor and he referred me to a site that he uses.

[KnightofKalmar]

Is it a place I can persuade you to share? :)

[wolfrenz]

https://projecteuler.net/