Add Binary
Vicky Chhetri
Given two binary strings a and b, return their sum as a binary string. Example 1: Input: a = "11", b = "1" Output: "100" Example 2: Input: a =…
Remove Element
Given an integer array nums and an integer val, remove all occurrences of val in nums in-place. The relative order of the elements may be changed. Since it is impossible…
Search Insert Position
Given a sorted array of distinct integers and a target value, return the index if the target is found. If not, return the index where it would be if it…
Length of Last Word
Given a string s consisting of words and spaces, return the length of the last word in the string. A word is a maximal substring consisting of non-space characters only.…
Plus One – C#
You are given a large integer represented as an integer array digits, where each digits is the ith digit of the integer. The digits are ordered from most significant to…
Valid Parentheses
Given a string s containing just the characters '(', ')', '{', '}', '', determine if the input string is valid. An input string is valid if: Open brackets must be…
Longest Common Prefix
Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string Example 1: Input: strs =…
SQL Joins
INNER JOIN: is used when retrieving data from multiple tables and will return only matching data. LEFT OUTER JOIN: is used when retrieving data from multiple tables and will return…
Day 8: C# Casting and type conversions
C# is statically-typed at compile time, after a variable is declared, it cannot be declared again or assigned a value of another type unless that type is implicitly convertible to…
SQL query to find the third highest salary in the company
The question is a bit confusing for the developer, Interviewer Always asks this question in SQL. The most straightforward way that should work in any database is to do the…