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First solution in Clear category for Common Words by Stanislaw_Szataniak
def checkio(first, second):
first = first.replace(",", " ")
second = second.replace(",", " ")
a = first.split()
b = second.split()
result = []
result2 = ""
for i in a:
count = 0
for j in b:
if i == j:
count += 1
if count > 0:
result.append(i)
result.sort()
if len(result) == 0:
return ""
if len(result) == 1:
return result[0]
if len(result) > 1:
for i in result:
result2 += i
if i != result[len(result)-1]:
result2 += ","
return result2
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio("hello,world", "hello,earth") == "hello", "Hello"
assert checkio("one,two,three", "four,five,six") == "", "Too different"
assert checkio("one,two,three", "four,five,one,two,six,three") == "one,three,two", "1 2 3"
Oct. 23, 2016