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First solution in Clear category for Pawn Brotherhood by haulef
def safe_pawns(pawns: set) -> int:
cnt = 0
for spot in pawns:
col, row = spot[0], spot[1]
l = chr(ord(col)-1) + str(int(row)-1)
r = chr(ord(col)+1) + str(int(row)-1)
if l in pawns or r in pawns:
cnt += 1
return 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!")
March 1, 2020
