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Problema: Dado um array ordenado arr[] de n elementos,
escreva uma função para pesquisar um determinado elemento x em arr[]
e retorne o índice de x no array. Considere que a matriz é um índice de base…
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Ask for task assignment
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# Aim :- Binary Search
- Write Binary Search Algorithm in Python
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### Programming language
- [ ] C
- [ ] C++
- [ ] Java
- [x] Python
Please Assign me this Task under LGM-Soc-21
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Tell me you solve this problem first
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- [x] C
- [x] C++
- [x] C#
- [x] CoffeeScript
- [x] Dart - @keshakaneria
- [x] Go
- [x] Java
- [x] Julia
- [x] JS
- [x] Kotlin
- [x] Php
- [x] Python
- [x] Readme
- [x] Ruby
- [x] Rust -…
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Change all search functions to binary.
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# Binary Search
To add notes and simple/basic questions for binary search folder
## Prerequisites
Before we work on your issue, can you help us a bit more but completing this checklist?
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Suvoo updated
4 years ago
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I want to add Binary Search
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## 主要题型
给定数组，寻找某个数第一次出现/第n次出现/最后一次出现的下标
## 时间复杂度
- O(1) 极少
- **O(logn) 几乎都是二分法**
- 如果通过O(n)遍历即可得出的，一般都会存在O（logn）的优化方案
- O(√n) 几乎是分解质因数
- **O(n) 高频**
- O(nlogn) 一般都可能要**排序**
- O(n^2) 数组，枚举，动…