C++ Coding Exercise – How to Merge Two Binary Trees?
Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are …
Category: c / c++
C/C++ Coding Exercisse – How to Implement ToLowerCase Function?
Implement function ToLowerCase() that has a string parameter str, and returns the same string in lowercase. Allocate a string and assign input string to it. Change uppercase letters to …
C++ Coding Exercise – Find All Duplicates in an Array
Given an array of integers, 1 ≤ a ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements that appear …
C++ Coding Exercise – Find Letter Case Permutation with DFS
Given a string S, we can transform every letter individually to be lowercase or uppercase to create another string. Return a list of all possible strings we could create. …
Algorithms to Find Maximum Depth of N-ary Tree (C++)
Given a n-ary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf …