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File:  root - text - article - 2020 - 01 - find-the-single-element-in-an-array-of-duplicates.txt
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Category: Computing | 192 Views, 29927 Search Bots | 68 Words

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Hi, here's your problem today. This problem was recently asked by Apple:

Given an array of integers, arr, where all numbers occur twice except one number which occurs once, find the number. Your solution should ideally be O(n) time and use constant extra space.
Example:
Input: arr = [7, 3, 5, 5, 4, 3, 4, 8, 8]
Output: 7


class Solution(object):
def findSingle(self, nums):
# Fill this in.

nums = [1, 1, 3, 4, 4, 5, 6, 5, 6]
print(Solution().findSingle(nums))
# 3
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Cateogry: Computing | 192 Views, 29927 Search Bots | 68 Words Subscribe to Feed Burner

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