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Second solution in Clear category for Pawn Brotherhood by Bartosz_M
def safe_pawns(pawns):
counter = 0
for i in pawns:
for j in pawns:
if int(i[1]) == int(j[1]) + 1:
if ord(i[0])+1 == ord(j[0]) or ord(i[0])- 1 == ord(j[0]):
counter +=1
break
return counter
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
Nov. 10, 2016
