Software Engineering Fixed width integer types (int8) in C++ C99 has defined a set of fixed-width integers that are guaranteed to have the same size on any architecture. These can be found in stdint.h header. This enables to use INT8 in C++.
Algorithms Finding 2 elements with difference k in a sorted array This article discusses how to check the existence of and find 2 elements with difference k in sorted array. We have explored 3 approaches and solved it in linear time O(N).
Algorithms Minimum number of nodes to be removed such that no subtree has more than K nodes The article contains editorial + implementation for Finding minimum number of nodes to be removed such that no sub tree has more than K nodes.
Algorithms Number of substrings with exactly k distinct characters In this problem, we are given a string and our job is to count the total number of substrings of the given string that contains exactly k distinct characters. We have explored 3 approaches to solve this.
Algorithms Different ways to sort a Queue We will be discussing 4 different ways to sort a queue. This involves sorting a Queue using auxiliary array, O(1) space, using recursion and using a stack.
Software Engineering endl vs \n (New Line) in C++ In C++, endl and /n are used to break lines or move the cursor to a new line. Both endl and \n may seem to be similar but has distinct differences which we have explored in this article in depth.
Software Engineering Regular Expression (Regex) in Python We have explained Regex in Python in depth. Everyone has used the feature of CTRL+F to find some text in documents, Regex also known as Regular Expression is advance form of that it allows the user to search for a pattern defined by him/her in the given set of input.
Algorithms Implementing two stacks in one array We will demonstrate how to implement 2 stacks in one array. Both stacks are independent but use the same array. We need to make sure one stack does not interfere with the other stack and support push and pop operation accordingly.
Algorithms Reverse first K elements of Queue using Stack To reverse the first K elements of a queue, we can use an auxiliary stack. We push the first k elements in the stack and pop() them out so and add them at the end of the queue.
Algorithms Time Complexity of Insertion Sort The average code and worst case time complexity of Insertion Sort is O(N^2) and the best case time complexity is O(N). The space complexity is O(N) for N elements.
Software Engineering Set vs Map containers in C++ This article is to discuss the difference between a set and a map which are both containers in the Standard Template Library in C++.
Software Engineering How to phish? or Phishing Campaigns We have explored the basic idea behind Phishing and different types like Email Phishing, Spear, Clone, Page and Web Page Phishing.
Algorithms Intersection point of two linked lists Given two linked lists, where the tail of the second list points to a node in the first list, find the node where both the lists intersect. We need to find the intersection point.
Software Engineering Different ways to insert elements in Deque in C++ We have explored different ways to insert elements in Deque in C++ such as deque::push_back(), insert(), assign(), emplace(), swap() and much more.
Software Engineering Flask API using Flask RestFul We will be developing a flask API using flask restful in which we will be performing all the basic CRUD operations.
Algorithms Column Sort Algorithm Column Sort Algorithm is a non-traditional sorting algorithm for Distributed Memory Clusters (DMC) (means multiple processors). It is a generalization of odd-even merge sort and is used in a parralel system where multiple CPUs are available for use.
Algorithms Shift OR algorithm for String Matching Shift OR algorithm uses bitwise techniques to check whether the given pattern is present in the string or not. It is efficient if the pattern length is lesser than the memory-word size of the machine
Software Engineering Uploading files to FireBase storage from iOS apps In this article, we have illustrated how to upload files to FireBase cloud storage from iOS app.
Software Engineering Using strings and characters in C++ safely Secure Coding in C++ or why we have to use strings and characters in C++ safely? What is C++, what are Strings and Buffer Overflows? And something about software vulnerabilities and exploits
System Design System Design of Online Coding Judge (Competitive Programming Platform) In this article, we have explored the system design of an online coding judge like HackerRank and CodeForces in depth and explored the best choices.
System Design Memory Pool with C++ Implementation Memory Pool is an optimization technique of allocating a specific amount of memory beforehand and handle all allocation and deallocation of memory from a concerned software system from this pre-allocated memory (which is known as Memory Pool).
Algorithms Move the first element of the linked list to the end In this problem, given a linked list, we move the first element of the linked list to the end of the linked list.
Problems on Binary Tree Construct Binary Tree from Inorder and Preorder traversal We present two approaches to Construct Binary Tree from Inorder and Preorder traversal. We start with background information on constructing Binary Tree from a given traversal or a set of traversals.
Software Engineering Different ways to initialize an array in C++ We have covered Different ways to initialize an array in C++ including both the standard array and array container in STL.
Algorithms Variants of Stable Marriage Problem We have explored the variants of stable marriage problem like Egalitarian Stable Matching, Minimum Regret Stable Matching, Stable marriage with ties, Stable marriage with incomplete lists and others.
