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[LeetCode] Search in a Sorted Array of Unknown Size 在未知大小的有序数组中搜索

时间:2018-11-10 00:59:10      阅读:40      评论:0      收藏:0      [点我收藏+]

标签:write   unknown   xpl   ever   lan   leetcode   arch   elements   nbsp   

 

Given an integer array sorted in ascending order, write a function to search target in nums.  If target exists, then return its index, otherwise return -1. However, the array size is unknown to you. You may only access the array using an ArrayReader interface, where ArrayReader.get(k) returns the element of the array at index k (0-indexed).

You may assume all integers in the array are less than 10000, and if you access the array out of bounds, ArrayReader.get will return 2147483647.

 

Example 1:

Input: array = [-1,0,3,5,9,12], target = 9
Output: 4
Explanation: 9 exists in nums and its index is 4

Example 2:

Input: array = [-1,0,3,5,9,12], target = 2
Output: -1
Explanation: 2 does not exist in nums so return -1

 

Note:

  1. You may assume that all elements in the array are unique.
  2. The value of each element in the array will be in the range [-9999, 9999].

 

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[LeetCode] Search in a Sorted Array of Unknown Size 在未知大小的有序数组中搜索

标签:write   unknown   xpl   ever   lan   leetcode   arch   elements   nbsp   

原文地址:https://www.cnblogs.com/grandyang/p/9937770.html

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