Coding Problems

Check if a binary tree is balanced

Flatten a nested list structure

Implement binary search on a sorted array

Count the number of uppercase letters in a string

Find the longest word in a sentence

Check if a string reads the same forwards and backwards

Remove duplicate values from a list

Find common elements between two lists

Combine two dictionaries into one

Calculate area of a rectangle

Convert a numeric string to integer

Find the maximum of three numbers

Combine two strings into one

Check if a number is even or odd

Write a program to print "Hello, World!"

Check if a string reads the same forwards and backwards (ignoring case).

Determine if a given number is prime.

For numbers from 1 to n, print "Fizz" for multiples of 3, "Buzz" for multiples of 5, and "FizzBuzz" for …

Determine if a given year is a leap year.

Given an array of integers, find the maximum value.