First clear solution for Follow Instructions by Lemur21 - python coding challenges

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First solution in Clear category for Follow Instructions by Lemur21

def follow(instructions):
    # your code here
    ops = { 'f': lambda x, y: (x, y + 1), 'b': lambda  x, y: (x, y - 1),
    'l': lambda  x, y: (x - 1, y), 'r': lambda x, y: (x + 1, y)
    }
    x, y = 0, 0
    for i in instructions:
       x, y = ops[i](x, y)
    return (x, y)


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!")

Dec. 8, 2020

Comments:

DinRigtigeFar on May 16, 2021, 7:57 p.m.
<p>Clever, but not very clear to people not familiar with lambda.</p>

letwolf on Sept. 18, 2024, 6:56 a.m.
<p>Not clear.</p>

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