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Parallelism in Query in DBMS	13 Apr, 2022 Parallelism in a query allows us to parallel execution of multiple queries by decomposing them into the parts that work in parallel. This can be achieved by shared-nothing architecture. Parallelism is also used in fastening the process of a query execution as more and more resources like processors and dis...	[ { "code": null, "e": 54, "s": 26, "text": "\n13 Apr, 2022" }, { "code": null, "e": 443, "s": 54, "text": "Parallelism in a query allows us to parallel execution of multiple queries by decomposing them into the parts that work in parallel. This can be achieved by shared-nothing ar...
Python \| Creating a 3D List	04 Dec, 2017 A 3-D List means that we need to make a list that has three parameters to it, i.e., (a x b x c), just like a 3 D array in other languages. In this program we will try to form a 3-D List with its content as “#”. Lets look at these following examples: Input : 3 x 3 x 3 Output : [[['#', '#', '#'], ['#', '#',...	[ { "code": null, "e": 54, "s": 26, "text": "\n04 Dec, 2017" }, { "code": null, "e": 304, "s": 54, "text": "A 3-D List means that we need to make a list that has three parameters to it, i.e., (a x b x c), just like a 3 D array in other languages. In this program we will try to form...
Program to find all Factors of a Number using recursion	30 Jan, 2022 Given a number N, the task is to print all the factors of N using recursion.Examples: Input: N = 16 Output: 1 2 4 8 16 Explanation: 1, 2, 4, 8, 16 are the factors of 16. A factor is a number which divides the number completely. Input: N = 8 Output: 1 2 4 8 Approach: The idea is to create a function t...	[ { "code": null, "e": 53, "s": 25, "text": "\n30 Jan, 2022" }, { "code": null, "e": 141, "s": 53, "text": "Given a number N, the task is to print all the factors of N using recursion.Examples: " }, { "code": null, "e": 314, "s": 141, "text": "Input: N = 16 Out...
Python OpenCV \| cv2.blur() method	29 Nov, 2019 OpenCV-Python is a library of Python bindings designed to solve computer vision problems. cv2.blur() method is used to blur an image using the normalized box filter. The function smooths an image using the kernel which is represented as: Syntax: cv2.blur(src, ksize[, dst[, anchor[, borderType]]])Parameters...	[ { "code": null, "e": 52, "s": 24, "text": "\n29 Nov, 2019" }, { "code": null, "e": 290, "s": 52, "text": "OpenCV-Python is a library of Python bindings designed to solve computer vision problems. cv2.blur() method is used to blur an image using the normalized box filter. The func...
C# \| Inverting all bit values in BitArray	01 Feb, 2019 The BitArray class manages a compact array of bit values, which are represented as Booleans, where true indicates that the bit is on i.e, 1 and false indicates the bit is off i.e, 0. This class is contained in System.Collections namespace.BitArray.Not method inverts all the bit values in the current BitArr...	[ { "code": null, "e": 28, "s": 0, "text": "\n01 Feb, 2019" }, { "code": null, "e": 437, "s": 28, "text": "The BitArray class manages a compact array of bit values, which are represented as Booleans, where true indicates that the bit is on i.e, 1 and false indicates the bit is off ...
Understanding PEAS in Artificial Intelligence	12 Jul, 2022 We know that there are different types of agents in AI. PEAS System is used to categorize similar agents together. The PEAS system delivers the performance measure with respect to the environment, actuators, and sensors of the respective agent. Most of the highest performing agents are Rational Agents. Rat...	[ { "code": null, "e": 52, "s": 24, "text": "\n12 Jul, 2022" }, { "code": null, "e": 356, "s": 52, "text": "We know that there are different types of agents in AI. PEAS System is used to categorize similar agents together. The PEAS system delivers the performance measure with respe...
C \| Input and Output \| Question 13	31 Aug, 2021 Which of the following is true(A) gets() can read a string with newline characters but a normal scanf() with %s can not.(B) gets() can read a string with spaces but a normal scanf() with %s can not.(C) gets() can always replace scanf() without any additional code.(D) None of the aboveAnswer: (B)Explanation...	[ { "code": null, "e": 54, "s": 26, "text": "\n31 Aug, 2021" }, { "code": null, "e": 480, "s": 54, "text": "Which of the following is true(A) gets() can read a string with newline characters but a normal scanf() with %s can not.(B) gets() can read a string with spaces but a normal ...
Python – Concatenate two list of lists Row-wise	03 Aug, 2021 Given two matrices, the task is to write a Python program to add elements to each row from initial matrix. Input : test_list1 = [[4, 3, 5,], [1, 2, 3], [3, 7, 4]], test_list2 = [[1, 3], [9, 3, 5, 7], [8]] Output : [[4, 3, 5, 1, 3], [1, 2, 3, 9, 3, 5, 7], [3, 7, 4, 8]] Explanation : Matrix is row wise merge...	[ { "code": null, "e": 53, "s": 25, "text": "\n03 Aug, 2021" }, { "code": null, "e": 160, "s": 53, "text": "Given two matrices, the task is to write a Python program to add elements to each row from initial matrix." }, { "code": null, "e": 258, "s": 160, "text":...
How to display XML data in web page using PHP ?	31 Mar, 2021 In this article, we are going to display data present in an XML file on a web page using PHP through the XAMPP server. PHP is a server-side scripting language that is mainly for processing web data. The XML stands for an extensible markup language. Requirements: XAMPP server XAMPP server Syntax: <root> ...	[ { "code": null, "e": 28, "s": 0, "text": "\n31 Mar, 2021" }, { "code": null, "e": 277, "s": 28, "text": "In this article, we are going to display data present in an XML file on a web page using PHP through the XAMPP server. PHP is a server-side scripting language that is mainly f...
No. of vowels and consonants in a given string in PL/SQL	05 Jul, 2018 Prerequisite – PL/SQL introduction In PL/SQL code groups of commands are arranged within a block. A block group related declarations or statements. In declare part, we declare variables and between begin and end part, we perform the operations. Given a string and the task is to find the number of vowels an...	[ { "code": null, "e": 28, "s": 0, "text": "\n05 Jul, 2018" }, { "code": null, "e": 63, "s": 28, "text": "Prerequisite – PL/SQL introduction" }, { "code": null, "e": 273, "s": 63, "text": "In PL/SQL code groups of commands are arranged within a block. A block gr...
Python Program to Construct n*m Matrix from List	30 Jun, 2021 Given a list, the task is to write a python program that can construct nm matrix. Input : test_list = [6, 3, 7, 2, 6, 8, 4, 3, 9, 2, 1, 3], n, m = 3, 5 Output : “Matrix Not Possible” Explanation : List has 12 elements and 35 is 15, hence Matrix not possible. Input : test_list = [6, 3, 7, 2, 6, 8], n, m =...	[ { "code": null, "e": 54, "s": 26, "text": "\n30 Jun, 2021" }, { "code": null, "e": 137, "s": 54, "text": "Given a list, the task is to write a python program that can construct n*m matrix." }, { "code": null, "e": 315, "s": 137, "text": "Input : test_list = [6...
Pygame – Random Movement of Object	24 Sep, 2021 Prerequisite: How to draw rectangle in Pygame? In this article, we will learn how we can add random movements in objects using PyGame in Python. To add random movement in our object we are going to use randint method of the random module. Syntax: random.randint(a, b) Parameters: a and b : Two integers Ret...	[ { "code": null, "e": 54, "s": 26, "text": "\n24 Sep, 2021" }, { "code": null, "e": 101, "s": 54, "text": "Prerequisite: How to draw rectangle in Pygame?" }, { "code": null, "e": 199, "s": 101, "text": "In this article, we will learn how we can add random movem...
How to Convert String to Datetime in R?	27 Dec, 2021 In this article, we will discuss how to convert String to Datetime in R Programming Language. We can convert string to DateTime by using the POSIXct function Syntax: as.POSIXct(string, format=”%Y-%m-%d %H:%M:%S”, tz=”UTC”) where string is the input string format represents the datetime format tz specifies ...	[ { "code": null, "e": 28, "s": 0, "text": "\n27 Dec, 2021" }, { "code": null, "e": 186, "s": 28, "text": "In this article, we will discuss how to convert String to Datetime in R Programming Language. We can convert string to DateTime by using the POSIXct function" }, { "co...
Find a point such that sum of the Manhattan distances is minimized	19 May, 2021 Given N points in K dimensional space where and . The task is to determine the point such that the sum of Manhattan distances from this point to the N points is minimized. Manhattan distance is the distance between two points measured along axes at right angles. In a plane with p1 at (x1, y1) and p2 at (x2...	[ { "code": null, "e": 52, "s": 24, "text": "\n19 May, 2021" }, { "code": null, "e": 395, "s": 52, "text": "Given N points in K dimensional space where and . The task is to determine the point such that the sum of Manhattan distances from this point to the N points is minimized. Ma...
Sorting a HashMap according to keys in Java	29 Apr, 2021 We are given the details of marks scored by students in form of a HashMap, where the name of the student is the Key and the marks scored is the Value. Our task is to sort the map according to the key values i.e the names of the students in the alphabetical(lexicographical) order.Examples: Input : Key = Ja...	[ { "code": null, "e": 54, "s": 26, "text": "\n29 Apr, 2021" }, { "code": null, "e": 345, "s": 54, "text": "We are given the details of marks scored by students in form of a HashMap, where the name of the student is the Key and the marks scored is the Value. Our task is to sort the...
How to create Jumbotron using Bootstrap 5 ?	15 Sep, 2020 Bootstrap Jumbotron is a responsive component whose main goal is to draw the visitor’s attention or highlight a special piece of information. Inside a Jumbotron, you can make use of almost any other Bootstrap code to further increase its engagement value. Uses of Jumbotron: Image showcase Highlighting cont...	[ { "code": null, "e": 28, "s": 0, "text": "\n15 Sep, 2020" }, { "code": null, "e": 284, "s": 28, "text": "Bootstrap Jumbotron is a responsive component whose main goal is to draw the visitor’s attention or highlight a special piece of information. Inside a Jumbotron, you can make ...
How to remove duplicates from an array of objects using JavaScript ?	25 Sep, 2019 Given an array of objects and the task is to remove the duplicate object element from the array list. There are two methods to solve this problem which are discussed below: Method 1: Using one of the keys as index: A temporary array is created which stores the objects of the original array using one of its...	[ { "code": null, "e": 28, "s": 0, "text": "\n25 Sep, 2019" }, { "code": null, "e": 201, "s": 28, "text": "Given an array of objects and the task is to remove the duplicate object element from the array list. There are two methods to solve this problem which are discussed below:" ...
Implementing Patricia Trie in Java	12 May, 2022 A Patricia Trie or prefix Tree or radix Tree is an ordered structured tree, which takes the applications of usually the data it stores. A node’s position in the tree defines the key with which that node is associated, which makes tries different in comparison to binary search Trees, in which a node stores ...	[ { "code": null, "e": 52, "s": 24, "text": "\n12 May, 2022" }, { "code": null, "e": 401, "s": 52, "text": "A Patricia Trie or prefix Tree or radix Tree is an ordered structured tree, which takes the applications of usually the data it stores. A node’s position in the tree defines ...
SQL SERVER \| Bulk insert data from csv file using T-SQL command	09 Mar, 2021 In this article, we will cover bulk insert data from csv file using the T-SQL command in the SQL server. And will also cover the way is more useful and more convenient to perform such kind of operations. Let’s discuss it one by one. Introduction :Sometimes there is a scenario when we have to perform bulk ...	[ { "code": null, "e": 28, "s": 0, "text": "\n09 Mar, 2021" }, { "code": null, "e": 262, "s": 28, "text": "In this article, we will cover bulk insert data from csv file using the T-SQL command in the SQL server. And will also cover the way is more useful and more convenient to perf...
What is a null-terminated string in C/C++?	In C the strings are basically array of characters. In C++ the std::string is an advancement of that array. There are some additional features with the traditional character array. The null terminated strings are basically a sequence of characters, and the last element is one null character (denoted by ‘\0’). When we w...	[ { "code": null, "e": 1620, "s": 1187, "text": "In C the strings are basically array of characters. In C++ the std::string is an advancement of that array. There are some additional features with the traditional character array. The null terminated strings are basically a sequence of characters, and ...
Longest Common Substring \| Practice \| GeeksforGeeks	Given two strings. The task is to find the length of the longest common substring. Example 1: Input: S1 = "ABCDGH", S2 = "ACDGHR" Output: 4 Explanation: The longest common substring is "CDGH" which has length 4. Example 2: Input: S1 = "ABC", S2 "ACB" Output: 1 Explanation: The longest common substrings are "A", "B", ...	[ { "code": null, "e": 321, "s": 238, "text": "Given two strings. The task is to find the length of the longest common substring." }, { "code": null, "e": 333, "s": 321, "text": "\nExample 1:" }, { "code": null, "e": 452, "s": 333, "text": "Input: S1 = \"ABCDGH\...
Python – math.perm() method	23 Jan, 2020 Math module in Python contains a number of mathematical operations, which can be performed with ease using the module. math.perm() method in Python is used to get the number of ways to choose k items from n items without repetition and with order. It Evaluates to n! / (n – k)! when k <= n and evaluates to ...	[ { "code": null, "e": 28, "s": 0, "text": "\n23 Jan, 2020" }, { "code": null, "e": 390, "s": 28, "text": "Math module in Python contains a number of mathematical operations, which can be performed with ease using the module. math.perm() method in Python is used to get the number o...
PHP \| Separate odd and even elements from array without using loop - GeeksforGeeks	08 Mar, 2018 You are given an array of n elements in PHP. You have to separate the elements from the array based on the elements are odd or even. That is, print odd array and even array separately without traversing the original array or using any loop. Examples: Input : array(2, 5, 6, 3, 0) Output : Odd array: 5 , 3 ...	[ { "code": null, "e": 26195, "s": 26167, "text": "\n08 Mar, 2018" }, { "code": null, "e": 26436, "s": 26195, "text": "You are given an array of n elements in PHP. You have to separate the elements from the array based on the elements are odd or even. That is, print odd array and e...
Extract week number from date in Pandas-Python	10 Jul, 2020 Many times, when working with some data containing dates we may need to extract the week number from a particular date. In Python, it can be easily done with the help of pandas. Example 1: # importing pandas as pdimport pandas as pd # creating a dictionary containing a datedict = {'Date':["2015-06-17"]} ...	[ { "code": null, "e": 28, "s": 0, "text": "\n10 Jul, 2020" }, { "code": null, "e": 206, "s": 28, "text": "Many times, when working with some data containing dates we may need to extract the week number from a particular date. In Python, it can be easily done with the help of panda...
Complexity Analysis of Binary Search	11 Jul, 2022 Complexities like O(1) and O(n) are simple to understand. O(1) means it requires constant time to perform operations like to reach an element in constant time as in case of dictionary and O(n) means, it depends on the value of n to perform operations such as searching an element in an array of n elements. ...	[ { "code": null, "e": 53, "s": 25, "text": "\n11 Jul, 2022" }, { "code": null, "e": 361, "s": 53, "text": "Complexities like O(1) and O(n) are simple to understand. O(1) means it requires constant time to perform operations like to reach an element in constant time as in case of d...
Four Main Object Oriented Programming Concepts of Java	22 Nov, 2021 Object-oriented programming generally referred to as OOPS is the backbone of java as java being a completely object-oriented language. Java organizes a program around the various objects and well-defined interfaces. There are four pillars been here in OOPS which are listed below. These concepts aim to impl...	[ { "code": null, "e": 53, "s": 25, "text": "\n22 Nov, 2021" }, { "code": null, "e": 399, "s": 53, "text": "Object-oriented programming generally referred to as OOPS is the backbone of java as java being a completely object-oriented language. Java organizes a program around the var...
Matplotlib.axes.Axes.legend() in Python	19 Apr, 2020 Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text, Polygon, etc., and sets the coordinate system. And the instances of Axes supports callbacks through a callbacks attribute. The Axe...	[ { "code": null, "e": 28, "s": 0, "text": "\n19 Apr, 2020" }, { "code": null, "e": 328, "s": 28, "text": "Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text...
Lodash _.now() Method	14 Sep, 2020 The _.now() method is used to get the timestamp of the number of milliseconds that have elapsed since the Unix epoch (1 January 1970 00:00:00 UTC). Syntax: _.now() Parameters: This method does not accept any parameter. Return Value: This method returns the timestamp. Example 1: Javascript // Defining Lodas...	[ { "code": null, "e": 28, "s": 0, "text": "\n14 Sep, 2020" }, { "code": null, "e": 176, "s": 28, "text": "The _.now() method is used to get the timestamp of the number of milliseconds that have elapsed since the Unix epoch (1 January 1970 00:00:00 UTC)." }, { "code": null,...
Minimum number of towers required such that every house is in the range of at least one tower	26 Oct, 2021 Given a map of the city and the network range, the task is to determine the minimum number of the tower so that every house is within range of at least one tower. Each tower must be installed on top of an existing house. Examples: Input: range : 1 house : 1 2 3 4 5 Output: 2 Input: range : 2 ...	[ { "code": null, "e": 54, "s": 26, "text": "\n26 Oct, 2021" }, { "code": null, "e": 275, "s": 54, "text": "Given a map of the city and the network range, the task is to determine the minimum number of the tower so that every house is within range of at least one tower. Each tower ...
Python \| Custom list split	02 Jan, 2019 Development and sometimes machine learning applications require splitting lists into smaller list in a custom way, i.e on certain values on which split has to be performed. This is quite a useful utility to have knowledge about. Let’s discuss certain ways in which this task can be performed. Method #1 : Us...	[ { "code": null, "e": 54, "s": 26, "text": "\n02 Jan, 2019" }, { "code": null, "e": 347, "s": 54, "text": "Development and sometimes machine learning applications require splitting lists into smaller list in a custom way, i.e on certain values on which split has to be performed. T...
GATE \| Gate IT 2007 \| Question 12	28 Jun, 2021 The address sequence generated by tracing a particular program executing in a pure demand paging system with 100 bytes per page is0100, 0200, 0430, 0499, 0510, 0530, 0560, 0120, 0220, 0240, 0260, 0320, 0410. Suppose that the memory can store only one page and if x is the address which causes a page fault t...	[ { "code": null, "e": 28, "s": 0, "text": "\n28 Jun, 2021" }, { "code": null, "e": 236, "s": 28, "text": "The address sequence generated by tracing a particular program executing in a pure demand paging system with 100 bytes per page is0100, 0200, 0430, 0499, 0510, 0530, 0560, 012...
SQL Server LAG() function Overview	22 Jun, 2020 At many instances, user would like to access data of the previous row or any row before the previous row from the current row.To solve this problem SQL Server’s LAG() window function can be used. LAG() :SQL Server provides LAG() function which is very useful in case the current row values need to be compar...	[ { "code": null, "e": 53, "s": 25, "text": "\n22 Jun, 2020" }, { "code": null, "e": 249, "s": 53, "text": "At many instances, user would like to access data of the previous row or any row before the previous row from the current row.To solve this problem SQL Server’s LAG() window ...
How to create an image map in JavaScript ?	27 Aug, 2021 An image map is nothing but an image that is broken into various hotspots and each hotspot will take you to a different file. Hotspots are nothing but clickable areas which we create on an image by using the <area> tag. This type of map is called a client-side image map as the map is embedded in the HTML i...	[ { "code": null, "e": 28, "s": 0, "text": "\n27 Aug, 2021" }, { "code": null, "e": 342, "s": 28, "text": "An image map is nothing but an image that is broken into various hotspots and each hotspot will take you to a different file. Hotspots are nothing but clickable areas which we...
T-test	20 Jul, 2021 Prerequisites – Hypothesis Testing, p-value A t-test is a type of inferential statistic used to determine if there is a significant difference between the means of two groups, which may be related in certain features. Terminologies involved Degree of freedom (df) – It tells us the number of independent var...	[ { "code": null, "e": 28, "s": 0, "text": "\n20 Jul, 2021" }, { "code": null, "e": 72, "s": 28, "text": "Prerequisites – Hypothesis Testing, p-value" }, { "code": null, "e": 246, "s": 72, "text": "A t-test is a type of inferential statistic used to determine if...
GWT - Deploy Application	This tutorial will explain you how to create an application "war" file and how to deploy that in Apache Tomcat Websever root. If you understood this simple example then you will also be able to deploy a complex GWT application following the same steps. Let us have working Eclipse IDE along with GWT plug in place and fo...	[ { "code": null, "e": 2283, "s": 2157, "text": "This tutorial will explain you how to create an application \"war\" file and how to deploy that in Apache Tomcat Websever root." }, { "code": null, "e": 2410, "s": 2283, "text": "If you understood this simple example then you will al...
Parameter Passing Techniques in Java with Examples	14 Jul, 2021 There are different ways in which parameter data can be passed into and out of methods and functions. Let us assume that a function B() is called from another function A(). In this case A is called the “caller function” and B is called the “called function or callee function”. Also, the arguments which A s...	[ { "code": null, "e": 54, "s": 26, "text": "\n14 Jul, 2021" }, { "code": null, "e": 453, "s": 54, "text": "There are different ways in which parameter data can be passed into and out of methods and functions. Let us assume that a function B() is called from another function A(). I...
Minimum number of Parentheses to be added to make it valid	19 May, 2021 Given a string S of parentheses ‘(‘ or ‘)’ where, . The task is to find a minimum number of parentheses ‘(‘ or ‘)’ (at any positions) we must add to make the resulting parentheses string is valid.Examples: Input: str = "())" Output: 1 One '(' is required at beginning. Input: str = "(((" Output: 3 Three ...	[ { "code": null, "e": 54, "s": 26, "text": "\n19 May, 2021" }, { "code": null, "e": 262, "s": 54, "text": "Given a string S of parentheses ‘(‘ or ‘)’ where, . The task is to find a minimum number of parentheses ‘(‘ or ‘)’ (at any positions) we must add to make the resulting parent...
Probability of getting K heads in N coin tosses	24 May, 2022 Given two integers N and R. The task is to calculate the probability of getting exactly r heads in n successive tosses. A fair coin has an equal probability of landing a head or a tail on each toss. Examples: Input : N = 1, R = 1 Output : 0.500000 Input : N = 4, R = 3 Output : 0.250000 Approach Probab...	[ { "code": null, "e": 52, "s": 24, "text": "\n24 May, 2022" }, { "code": null, "e": 251, "s": 52, "text": "Given two integers N and R. The task is to calculate the probability of getting exactly r heads in n successive tosses. A fair coin has an equal probability of landing a head...
Python \| Pandas Series.itemsize	28 Jan, 2019 Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages and makes importing and analyzing data much easier. Pandas series is a One-dimensional ndarray with axis labels. The labels need not be unique bu...	[ { "code": null, "e": 53, "s": 25, "text": "\n28 Jan, 2019" }, { "code": null, "e": 267, "s": 53, "text": "Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages and makes im...
AngularJS - Forms	AngularJS enriches form filling and validation. We can use ng-click event to handle the click button and use $dirty and $invalid flags to do the validation in a seamless way. Use novalidate with a form declaration to disable any browser-specific validation. The form controls make heavy use of AngularJS events. Let us h...	[ { "code": null, "e": 3185, "s": 2833, "text": "AngularJS enriches form filling and validation. We can use ng-click event to handle the click button and use $dirty and $invalid flags to do the validation in a seamless way. Use novalidate with a form declaration to disable any browser-specific validat...