aoc2017day04
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import sys
def doit(input):
phrases = list(input.strip().split("\n"))
sum = 0
for p in phrases:
words = p.split()
invalid = 0
for i in range(len(words)):
for j in range(len(words)):
if j <= i: continue
if words[i] == words[j]:
invalid += 1
if invalid == 0: sum += 1
return "%d" % sum
input = sys.stdin.read()
print(doit(input))
Python
INFO