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First solution in Uncategorized category for Pawn Brotherhood by Rounin
def add(char, addend):
return chr(ord(char)+addend)
def safe_pawns(pawns):
found = dict()
safe = 0
for pawn in pawns:
found[pawn] = True
for pawn in pawns:
pawn = list(pawn)
pawn[1] = int(pawn[1])-1
if (add(pawn[0], -1)+str(pawn[1]) in found) or (add(pawn[0], 1)+str(pawn[1]) in found):
safe += 1
return safe
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
July 19, 2017