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if...elif solution in Clear category for Follow Instructions by nickgryg
def follow(instructions):
target = [0, 0]
for direction in instructions:
if direction == 'f':
target[-1] += 1
elif direction == 'b':
target[-1] -= 1
elif direction == 'l':
target[0] -= 1
elif direction == 'r':
target[0] += 1
return tuple(target)
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!")
June 7, 2020