Longest Palindromic Substring

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Hive case when example

Let's say you have table like following. You want to query the nums of each level.

Roman to Integer

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Palindrome Number

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Reverse Integer

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Hive group by get last record

Let's say you have a table like following.

Hive not in example

We can use left join in Hive to implements in or not in operation. Now we have two tables A and B like following.

Implement Stack using Queues

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Valid Parentheses

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First Missing Positive

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Combination Sum II

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Combination Sum

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git delete remote file

I push my project to remote but I forget add .gitignore file. I use these commands to delete remote file(.idea and target).

Search Insert Position

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Find First and Last Position of Element in Sorted Array

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