Category: c / c++

This problem was inspired by this original tweet by Max Howell: Google: 90% of our engineers use the software you wrote (Homebrew), but you can’t invert a binary tree …

You are given an array x of n positive numbers. You start at point (0,0) and moves x metres to the north, then x metres to the west, x …

This is classified as a hard puzzle: https://leetcode.com/problems/palindrome-pairs/ A palindrome string is a string whose reverse string is exactly the same, e.g. ABBA, 1, UIU… Brute Force Almost every …

Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1’s in their binary representation and …

The thief has found himself a new place for his thievery again. There is only one entrance to this area, called the “root.” Besides the root, each house has …