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First solution in Clear category for Pawn Brotherhood by Sayhar
from string import ascii_lowercase as alphabet
def safe_pawns(pawns):
coords = [(alphabet.find(p[0])+1, int(p[1])) for p in pawns]
safety = 0
for x,y in coords:
if (x-1, y-1) in coords or (x + 1, y-1) in coords:
safety += 1
return safety
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. 29, 2015
