Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
First solution in Clear category for Pawn Brotherhood by stanwys
def safe_pawns(pawns):
pawns_indexes= set()
safe=0
g=False
for i in pawns:
row= int(i[1])
col = ord(i[0])-96
pawns_indexes.add((row,col))
for row,col in pawns_indexes:
if((row-1,col-1) in pawns_indexes) or ((row-1,col+1) in pawns_indexes):
g=True
else:
g=False
if(g==True):
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
Oct. 21, 2016
