Coding Practice Arena
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Two Sum
EasyArraysGiven an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.
Reverse String
EasyStringsWrite a function that reverses a string. The input string is given as an array of characters.
Valid Palindrome
MediumStringsA phrase is a palindrome if it reads the same forward and backward. Determine if a given string is a palindrome.
Merge Two Sorted Lists
EasyLinked ListsMerge two sorted linked lists and return it as a sorted list.
Binary Search
EasyBinary SearchGiven a sorted array of integers, write a function to search for a target value using binary search.