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clear solution solution in Clear category for Pawn Brotherhood by Mateusz_Tomkowiak
def safe_pawns(pawns):
pawns_indexes, safe_pawns = set(), 0
for p in pawns:
row = int(p[1]) - 1
col = ord(p[0]) - 97
pawns_indexes.add((row,col))
print (pawns_indexes)
for row, col in pawns_indexes:
is_safe = (row-1,col-1) in pawns_indexes or (row-1, col+1) in pawns_indexes
if (is_safe):
safe_pawns+=1
return safe_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
Oct. 10, 2016
