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First solution in Clear category for Pawn Brotherhood by nlimpid
def safe_pawns(pawns):
count = 0
for i in pawns:
temp = ord(i[0])
first = chr(temp-1)
second = chr(temp+1)
num = int(i[1])-1
if ("{0}{1}".format(first, num) in pawns) or ("{0}{1}".format(second, num) in pawns):
count +=1
return count
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
April 19, 2016
