Simple Counter clear solution for Follow Instructions by r_tchaik - python coding challenges

Enable Javascript in your browser and then refresh this page, for a much enhanced experience.

Simple Counter solution in Clear category for Follow Instructions by r_tchaik

from collections import Counter


def follow(instructions):
    totals = Counter(instructions)
    return totals['r'] - totals['l'], totals['f'] - totals['b']


if __name__ == '__main__':
    print("Example:")
    print(follow("fflff"))
    
    # These "asserts" are used for self-checking and not for an auto-testing
    assert follow("fflff") == (-1, 4)
    assert follow("ffrff") == (1, 4)
    assert follow("fblr") == (0, 0)
    print("Coding complete? Click 'Check' to earn cool rewards!")

Nov. 4, 2020

Comments:

letwolf on Sept. 18, 2024, 6:57 a.m.
<p>Clear, but unneccessary module used. Could use just count() method of str.</p>

r_tchaik on Oct. 5, 2024, 4:20 p.m.
<p>With count you read the same object a lot of times while counter does it just once. For small numbers you will not see any difference. But for huge sets... So it's better to get used to Counter.</p>

List but not the least

0 %

You ClassRoom Demo is Ready With the new tool CheckiO ClassRoom, you will be able to analyze your students' progress, have your own leaderboard, change missions order on the map, and so on.