8. Loop Detection Given a singly linked list, detect whether a cycle exists and return the node where the cycle begins 1) Brute Force Assume every node(i) could be the cycle start ...

1) Dual-Pivot QickSort Used (Java Arrays.sort(int[])) Three-way partitioning strategy, making it faster than single-pivot QuickSort Select two pivots (p and q) and divides ...

1. Is Unique 1) Brute Force Compare all pairs when to use? : Never, only education public static boolean isUniqueBruteForce(String s) { if (s == null) return true; ...

Continuous Subarrays Leetcode Website Let i, i + 1, …, j be the indices in the subarray Then, for each pair of indices i <= i1, i2 <= j, 0 <= |nums[i1] - nums[i2]| ...

Triple Step: A child is running up a staircase with n steps and can hop either 1 step, 2 steps, or 3 steps at a time. Implement a method to count how many possible ways the child can run up the...

iOS Backup code Python from PIL import Image, ExifTags import os import sqlite3 import shutil from datetime import datetime import pillow_heif # pip insatll pillow-heif pillow_heif.register_heif...

Call Center: Imagine you have a call center with three levels of employees: respondent, manager, and director. An incoming telephone call must be first allocated to a respondent who is fre...

Steps 1. Git Clone iOS Backup git repository git clone https://github.com/syjoe02/iOS-Backcup.git 2. Install Packages pip install pillow-heif pillow 3. Run python3 backup...

BackUp Scripts After downgrading the IPhone iOS version, Backup files from higher iOS versions cannot be restored My iPhone 18.2v -> 18.1v (downgrade) It is the reason w...

Basketball You have a basketball hoop and someone says that you can play one of two games. Game 1: You get one shot to make the hoop. Game 2: You get three shots and you ...