#competitive-programming
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Problem Description: Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input...
Problem Description: Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to the target. You...
Problem Description: Given an integer x, return true if x is palindrome integer. An integer is a palindrome when it reads the same backward as...
