Interview Questions

1. Two Sum

   coding

   Practice

   Title: Two Sum

   Problem: Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

2. Valid Parentheses

   coding

   Practice

   Title: Valid Parentheses

   Problem: Given a string containing parentheses and letters, determine if the parentheses are valid (every opening bracket has a matching closing bracket in the correct order).