Design an algorithm to find the first unique element in an array.
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Como você agiria se um colega de trabalho estivesse fazendo uma coisa muito errada?
How do you get a plastic ball out of a cup without touching the cup.
Question was "Given a pattern and a string input - find if the string follows the same pattern and return 0 or 1. Examples: 1) Pattern : "abba", input: "redblueredblue" should return 1. 2) Pattern: "aaaa", input: "asdasdasdasd" should return 1. 3) Pattern: "aabb", input: "xyzabcxzyabc" should return 0. I saw someone else had a similar question, but it was much much easier as the other candidate was given spaces between words to help identify individual words to pattern match.
1. pattern question n=1 * *** n=2 * *** * * ***** n=3 * *** * * ***** * * * *******
If you were building a search tool and wanted search results to pop up as you typed but the server call was taxing, write a function that gets called on every key down but calls the server when the user stops typing for 400ms.
given an array of words, how to eliminate the duplicates? You have a simple tree structure Ⓐ and its clone ⓐ. Each node in the tree has a pointer to it's parent as well as an array of its children. Given an original tree's node Ⓑ and cloned tree ⓐ, implement a method that returns ⓑ (the clone of Ⓑ). (Imagine finding the matching UIButton/UISlider/UIView in a separate cloned view controller.) Original Ⓐ ┏━┻━━┓ ◯ ◯ ┏┻┓ ┏━╋━┓ ◯ ◯ ◯ ◯ ◯ ┏┻┓ ┃ ◯ Ⓑ ◯ Clone ⓐ ┏━┻━━┓ ◯ ◯ ┏┻┓ ┏━╋━┓ ◯ ◯ ◯ ◯ ◯ ┏┻┓ ┃ ◯ ⓑ ◯
If 70% of Facebook users on iOS use Instagram, but only 35% of Facebook users on Android use Instagram, how would you investigate the discrepancy?
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