A page table is a data structure used by virtual memory system in a computer operating system to store the mapping between the virtual addresses and physical addresses. Multilevel page tables are split into two or more levels.The multi-level page tables are tree-like structures to hold page table. The entries of the level-0 page table are pointers to… Read More »
Single row character function are those function which accepts character values as arguments and return either a numeric or character values. These are two types: Case Manipulation Character Manipulation These are explained as following below. 1. Case Manipulation: It accept the character values and return the character value. UPPER(string1): Converts all letters of string1 into upper case. LOWER(string1):… Read More »
Given a multi-set of n integers. We have to select exactly k of them in a such way that the difference between any two of them is divisible by m, if it is not possible we will simply return “no” and if it is we will print yes. Examples: Input : 3 2 3 //n,k,m respectively 1 8… Read More »
Given an array of n elements and we have to find the standard deviation of numbers. Examples: Input : arr[] = {9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4} Output : 2.983 Input : arr[] = {10, 5, 4, 7, 9, 34, 16, 23, 28} Output… Read More »
Given N = no of rows and M = no of columns, print the hollow pattern. ********** * * * * * * ********** Given above is an example of hollow pattern of 5 x 10. Given below is the approach to built hollow pattern: To iterate through rows, run an outer loop from 1 to rows. Define… Read More »
In this article we are going to learn a few basic queries for Creating, Updating and Deleting the database components. Learning Queries to play around with the database: We will classify the queries into 2 groups: Queries to handle the database hierarchy. Queries to search and retrieve records using some search parameter. Queries to handle the database… Read More »
You may be surfing Internet every day, but,have you ever wondered how your favorite websites work? When you click on something, do you know what happens behind the scenes? If you know little bit about technology, you may know that your request goes to a web server. Web server does all the work and sends results back to… Read More »
Here are 25 important machine learning interview questions along with short answers: Question Answer What is machine learning? AI training for predictions based on data. Supervised vs. unsupervised learning? Labeled vs. unlabeled data for model training. Classification vs. regression? Predicting categories vs. continuous values. What is overfitting? Model fits data closely, fails on new data; prevent. What is… Read More »
Data structures are fundamental tools that every programmer must be familiar with. They are used to organize and manipulate data in a way that makes programming more efficient and effective. In this article, we will explore some of the most important data structures that every programmer should know, along with examples in C++. 1. Arrays Arrays are one… Read More »
Prerequisite – Loops in C A nested loop is a loop inside another loop. In C programming language, you can nest a loop inside another loop to perform repetitive tasks. The inner loop executes its entire cycle each time the outer loop executes one cycle. Here is an example of a nested loop in C that prints a… Read More »
