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g0201_0300.s0260_single_number_iii.readme.md Maven / Gradle / Ivy

260\. Single Number III

Medium

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**.

You must write an algorithm that runs in linear runtime complexity and uses only constant extra space.

**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:**

*   2 <= nums.length <= 3 * 104
*   -231 <= nums[i] <= 231 - 1
*   Each integer in `nums` will appear twice, only two integers will appear once.