Two Pointers

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Leetcode - Count Good Meals Solution

A good meal is a meal that contains exactly two different food

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Leetcode - Long Pressed Name Solution

Your friend is typing his name into a keyboard. Sometimes, when typing

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Leetcode - Backspace String Compare Solution

Given two strings s and t, return true if they are equal

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Leetcode - Reverse Vowels of a String Solution

Given a string s, reverse only all the vowels in the string

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Leetcode - Reverse String Solution

Write a function that reverses a string. The input string is given

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Leetcode - Minimum Size Subarray Sum Solution

Given an array of positive integers nums and a positive integer target,

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Leetcode - Sort Colors Solution

Given an array nums with n objects colored red, white, or blue,

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Leetcode - Implement strStr() Solution

Implement strStr(). Return the index of the first occurrence of needle in

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Leetcode - Remove Element Solution

Given an array nums and a value val, remove all instances of