6 lines
200 B
Python
6 lines
200 B
Python
def findPairs(self, nums, k):
|
|
if k > 0:
|
|
return len(set(nums) & set(a + k for a in nums))
|
|
elif k == 0:
|
|
return sum(v > 1 for v in collections.Counter(nums).values())
|
|
return 0 |