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using def solution in Clear category for Pawn Brotherhood by kdim
def safe(pawns: set, pawn: str) -> bool:
if chr(ord(pawn[0])-1) + str(int(pawn[1])-1) in pawns: return True
if chr(ord(pawn[0])+1) + str(int(pawn[1])-1) in pawns: return True
return False
def safe_pawns(pawns: set) -> int:
return sum( safe(pawns, pawn) for pawn in pawns )
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
assert safe_pawns(["a8","b7","c6","d5","e4","f3","g2","h1"]) == 7
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")
Jan. 2, 2021
