How to Exchange the Odd and Even Bits of a 32-bit Integer?
Write a program to swap odd and even bits in an integer with as few instructions as possible (e.g., bit 0 and bit 1 are swapped, bit 2 and …
Tag: c++
Breadth First Search Algorithm to Compute the Leftmost Deepest Tree Node in a Binary Tree
Given a binary tree root, find the value of the deepest node. If there’s more than one deepest node, then return the leftmost one. Constraints n ≤ 100,000 where …
Hash Algorithm to Check A List Containing Almost Same Strings (Differ By One Character)
You are given a list of lowercase alphabet strings words where each string is of the same length. Return whether there’s two strings that differ only in one index. …
Two Pointer Algorithm to Count the Sum of Three Numbers Less than Target
Given a list of integers nums and an integer target, return the number of triples i < j < k that exist such that nums + nums + nums …
Binary Tree Algorithm: Checking Leaves in the Same Level
Given a binary tree root, return whether all leaves are at the same level. Constraints n ≤ 100,000 where n is the number of nodes in root Breadth First …