def remove_duplicates(nums)
nums.uniq!
return nums.length
end
First, use uniq! to remove all the duplicates in nums. Then return its length.
Time complexity: O(n)
Extra memory: O(1)
Kaitian Xie
Posted on • Updated on
LeetCode in Ruby: 26. Remove Duplicates from Sorted Array
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Discussion (1)
Interesting... And it's fast...