# Explore the Programming Blog

### Find the maximum sum of any continuous subarray of size K

Introduction You are given an array of integers…

### Graph Topological Sorting - Build System Order Example

Graph Topological Sorting This is a well known…

### Binary Tree - Level Order Traversal

Problem Statement Given a Binary tree, print out…

### Four Sum - Leet Code Solution

Problem Statement Given an array nums of n…

### Leetcode - Rearrange Spaces Between Words

Problem Statement You are given a string text of…

### Leetcode - Maximum Non Negative Product in a Matrix

Problem Statement You are given a rows x cols…

### Leetcode - Split a String Into the Max Number of Unique Substrings

Problem Statement Given a string s, return the…

### Crawler Log Folder - minimum number of operations needed to go back to the main folder after the change folder operations.

Problem The Leetcode file system keeps a log each…

### Replace all spaces in a string with %20

Problem Statement Replace all spaces in a string…

### Determine if a string has all unique characters

Problem Implement an algorithm to determine if a…

### Valid Palindrome - Leet Code Solution

Problem Statement Given a string, determine if it…