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readable, I guess solution in Clear category for Pawn Brotherhood by andreydenisov
def safe_pawns(pawns: set) -> int:
safe_cnt = 0
for pawn in pawns:
letter, digit = list(pawn)
left_bottom_position = chr(ord(letter) - 1) + str(int(digit) - 1)
right_bottom_position = chr(ord(letter) + 1) + str(int(digit) - 1)
if left_bottom_position in pawns or right_bottom_position in pawns:
safe_cnt += 1
return safe_cnt
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert safe_pawns({"b4", "d4", "f4", "c3", "e3", "g5", "d2"}) == 6
assert safe_pawns({"b4", "c4", "d4", "e4", "f4", "g4", "e5"}) == 1
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")
April 23, 2021
