文件: root - text - article - 2019 - 10 - daily-problem-first-and-last-indices-of-an-element-in-a-sorted-array.txt
标签: 每日算法题, 算法, 数据结构, 面试题, Daily Problem, Data Structures and Algorithms, | 英文 | 主页 | 类别: 计算机科学 | 427 次阅读, 36080 次搜索 | 87 个单词
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标签: 每日算法题, 算法, 数据结构, 面试题, Daily Problem, Data Structures and Algorithms, | 英文 | 主页 | 类别: 计算机科学 | 427 次阅读, 36080 次搜索 | 87 个单词
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Hi, here's your problem today. This problem was recently asked by AirBNB:
Given a sorted array, A, with possibly duplicated elements, find the indices of the first and last occurrences of a target element, x. Return -1 if the target is not found.
Example:
Input: A = [1,3,3,5,7,8,9,9,9,15], target = 9
Output: [6,8]
Input: A = [100, 150, 150, 153], target = 150
Output: [1,2]
Input: A = [1,2,3,4,5,6,10], target = 9
Output: [-1, -1]
Here is a function signature example:
标签: 每日算法题, 算法, 数据结构, 面试题, Daily Problem, Data Structures and Algorithms, | 英文 | 主页 | 类别: 计算机科学 | 427 次阅读, 36080 次搜索 | 87 个单词 Given a sorted array, A, with possibly duplicated elements, find the indices of the first and last occurrences of a target element, x. Return -1 if the target is not found.
Example:
Input: A = [1,3,3,5,7,8,9,9,9,15], target = 9
Output: [6,8]
Input: A = [100, 150, 150, 153], target = 150
Output: [1,2]
Input: A = [1,2,3,4,5,6,10], target = 9
Output: [-1, -1]
Here is a function signature example:
class Solution:
def getRange(self, arr, target):
# Fill this in.
# Test program
arr = [1, 2, 2, 2, 2, 3, 4, 7, 8, 8]
x = 2
print(Solution().getRange(arr, x))
# [1, 4]
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