Ludium - Learn by Doing

Build a List of Squares

Assume you are given a positive integer n. Write the function first_n_squares(n) that returns a new list containing the squares of the integers from 1 up to and including n, in increasing order.

first_n_squares(4)  ->  [1, 4, 9, 16]
first_n_squares(1)  ->  [1]

def first_n_squares(n):
    """Return a list containing the squares of the integers from 1 to n
    (inclusive), in increasing order. n is a positive integer."""
    pass

def first_n_squares(n):
    """Return a list containing the squares of the integers from 1 to n
    (inclusive), in increasing order. n is a positive integer."""
    pass

Scratchpad— run any Python to test ideas

# Scratchpad — run any Python here to test ideas.
# Anything you write below stays separate from the problem's tests.

print("hello, world")

# Scratchpad — run any Python here to test ideas.
# Anything you write below stays separate from the problem's tests.

print("hello, world")

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Visible tests · 2Examples — click to expand

first_n_squares(4) returns [1, 4, 9, 16]

first_n_squares(1) returns [1]

Hidden tests · 3Bodies hidden — pass/fail only

Hidden test 1

Hidden test 2

Hidden test 3

Coding challenges on mutating lists: append, sort, split/join, and object identity

Build a List of Squares

Coding challenges on mutating lists: append, sort, split/join, and object identity

Build a List of Squares