擅长:python、mysql、java
<p>可以这样写</p>
<pre><code> def containsDuplicate(self, nums: List[int]) -> bool:
nums.sort()
pointer2 = 0
for pointer1, num in enumerate(nums[1:], start=1):
if num == nums[pointer2]:
return True
pointer2 = pointer1
return False
</code></pre>