260. Single Number III
Given an integer array nums
, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two elements that appear only once. You can return the answer in any order.
**Follow up: **Your algorithm should run in linear runtime complexity. Could you implement it using only constant space complexity?
Example 1:
Input: nums = [1,2,1,3,2,5]
Output: [3,5]
Explanation: [5, 3] is also a valid answer.
Example 2:
Input: nums = [-1,0]
Output: [-1,0]
Example 3:
Input: nums = [0,1]
Output: [1,0]
Constraints:
1 <= nums.length <= 30000
- Each integer in
nums
will appear twice, only two integers will appear once.
# @lc code=start
using LeetCode
function single_number_iii(nums::Vector{T}) where T <: Integer
res = reduce(⊻, nums; init = zero(T))
div = one(T)
while (div & res) == 0
div <<= one(T)
end
a = b = 0
for n in nums
(div & n == 0) ? a ⊻= n : b ⊻= n
end
return a, b
end
# @lc code=end
single_number_iii (generic function with 1 method)
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