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What do you mean by static memory allocation in C programming?	Memory can be allocated in the following two ways − Static variable defines in one block of allocated space, of a fixed size. Once it is allocated, it can never be freed. Memory is allocated for the declared variable in the program. The address can be obtained by using ‘&’ operator and can be assigned to a pointer. The...	[ { "code": null, "e": 1114, "s": 1062, "text": "Memory can be allocated in the following two ways −" }, { "code": null, "e": 1233, "s": 1114, "text": "Static variable defines in one block of allocated space, of a fixed size. Once it is allocated, it can never be freed." }, { ...
Maximum sum of absolute difference of any permutation - GeeksforGeeks	24 May, 2021 Given an array, we need to find the maximum sum of absolute difference of any permutation of the given array.Examples: Input : { 1, 2, 4, 8 } Output : 18 Explanation : For the given array there are several sequence possible like : {2, 1, 4, 8} {4, 2, 1, 8} and some more. Now, the absolute differe...	[ { "code": null, "e": 24513, "s": 24485, "text": "\n24 May, 2021" }, { "code": null, "e": 24634, "s": 24513, "text": "Given an array, we need to find the maximum sum of absolute difference of any permutation of the given array.Examples: " }, { "code": null, "e": 25078...
16 Must-Know Bash Commands for Data Scientists \| by Giorgos Myrianthous \| Towards Data Science	It is very important for Data Scientists to have a basic understanding around bash and its commands. Often referred to as the terminal, console or command line, Bash is a Unix shell that can help you navigate within your machine and perform certain tasks. In today’s article, we are going to explore a few of the most co...	[ { "code": null, "e": 428, "s": 172, "text": "It is very important for Data Scientists to have a basic understanding around bash and its commands. Often referred to as the terminal, console or command line, Bash is a Unix shell that can help you navigate within your machine and perform certain tasks....
Machine Learning ‘on the rocks’ 🥃 [Whiskey Dataset] \| by Gerasimos Plegas \| Towards Data Science	“Always carry a flagon of whisky in case of snakebite, and furthermore, always carry a small snake.” \| W.C. Fields Apparently, the project’s domain relies on the most popular liquor in the world — Whiskey. A dark spirit coming from a great variety of grains, distilled throughout the world and arriving at quite a number...	[ { "code": null, "e": 287, "s": 172, "text": "“Always carry a flagon of whisky in case of snakebite, and furthermore, always carry a small snake.” \| W.C. Fields" }, { "code": null, "e": 701, "s": 287, "text": "Apparently, the project’s domain relies on the most popular liquor in t...
PL/SQL \| User Input - GeeksforGeeks	03 Oct, 2018 Prerequisite – PL/SQL IntroductionIn PL/SQL, user can be prompted to input a value using & character. & can be used to prompt input for different data types. Consider, following table: Following queries will create a new table named GFG in the database. SQL> create table GFG (id number(4), author varchar2(...	[ { "code": null, "e": 23973, "s": 23945, "text": "\n03 Oct, 2018" }, { "code": null, "e": 24158, "s": 23973, "text": "Prerequisite – PL/SQL IntroductionIn PL/SQL, user can be prompted to input a value using & character. & can be used to prompt input for different data types. Consi...
Natural Language Toolkit - Word Replacement	Stemming and lemmatization can be considered as a kind of linguistic compression. In the same sense, word replacement can be thought of as text normalization or error correction. But why we needed word replacement? Suppose if we talk about tokenization, then it is having issues with contractions (like can’t, won’t, etc...	[ { "code": null, "e": 2563, "s": 2384, "text": "Stemming and lemmatization can be considered as a kind of linguistic compression. In the same sense, word replacement can be thought of as text normalization or error correction." }, { "code": null, "e": 2828, "s": 2563, "text": "But...
How to create a function in MATLAB ? - GeeksforGeeks	26 May, 2021 A function is a block of statements that intend to perform a specific task. Functions allow the users to reuse the code frequently. MATLAB has several predefined functions which are ready to use such as sin(), fact(), cos() etc. MATLAB also allows the users to define their own functions. Syntax: function o...	[ { "code": null, "e": 24468, "s": 24440, "text": "\n26 May, 2021" }, { "code": null, "e": 24757, "s": 24468, "text": "A function is a block of statements that intend to perform a specific task. Functions allow the users to reuse the code frequently. MATLAB has several predefined f...
Fast I/O for Competitive Programming - GeeksforGeeks	08 Nov, 2021 In competitive programming, it is important to read input as fast as possible so we save valuable time. You must have seen various problem statements saying: “Warning: Large I/O data, be careful with certain languages (though most should be OK if the algorithm is well designed)”. The key for such problems ...	[ { "code": null, "e": 24750, "s": 24722, "text": "\n08 Nov, 2021" }, { "code": null, "e": 24854, "s": 24750, "text": "In competitive programming, it is important to read input as fast as possible so we save valuable time." }, { "code": null, "e": 25091, "s": 24854,...
How to Change Colours in Command Prompt in Windows? - GeeksforGeeks	23 Mar, 2020 Command Prompt is a neat command-line interpreter that comes in-built with the Windows operating system. Command prompt is still used for performing various functions such as, collecting information on the network state of the computer, troubleshooting the system, deleting files, formatting computers, etc....	[ { "code": null, "e": 24964, "s": 24936, "text": "\n23 Mar, 2020" }, { "code": null, "e": 25608, "s": 24964, "text": "Command Prompt is a neat command-line interpreter that comes in-built with the Windows operating system. Command prompt is still used for performing various functi...
4 Ways To Replace Items In Python Lists \| by AnBento \| Towards Data Science	Update: Many of you contacted me asking for valuable resources to nail Python coding interviews. Below I share 4 courses that I strongly recommend to keep exercising after practicing the algorithms in this post: LeetCode In Python: 50 Algorithms Coding Interview Questions → Best For Coding Rounds Prep! Python advanced ...	[ { "code": null, "e": 258, "s": 46, "text": "Update: Many of you contacted me asking for valuable resources to nail Python coding interviews. Below I share 4 courses that I strongly recommend to keep exercising after practicing the algorithms in this post:" }, { "code": null, "e": 350, ...
11 Dimensionality reduction techniques you should know in 2021 \| by Rukshan Pramoditha \| Towards Data Science	In both Statistics and Machine Learning, the number of attributes, features or input variables of a dataset is referred to as its dimensionality. For example, let’s take a very simple dataset containing 2 attributes called Height and Weight. This is a 2-dimensional dataset and any observation of this dataset can be plo...	[ { "code": null, "e": 386, "s": 47, "text": "In both Statistics and Machine Learning, the number of attributes, features or input variables of a dataset is referred to as its dimensionality. For example, let’s take a very simple dataset containing 2 attributes called Height and Weight. This is a 2-di...
Environments in R Programming - GeeksforGeeks	05 Aug, 2020 The environment is a virtual space that is triggered when an interpreter of a programming language is launched. Simply, the environment is a collection of all the objects, variables, and functions. Or, Environment can be assumed as a top-level object that contains the set of names/variables associated with...	[ { "code": null, "e": 29044, "s": 29016, "text": "\n05 Aug, 2020" }, { "code": null, "e": 29616, "s": 29044, "text": "The environment is a virtual space that is triggered when an interpreter of a programming language is launched. Simply, the environment is a collection of all the ...
Exploring Pathfinding Graph Algorithms \| by Tomaz Bratanic \| Towards Data Science	In the first part of the series, we constructed a knowledge graph of monuments located in Spain from WikiData API. Now we’ll put on our graph data science goggles and explore various pathfinding algorithms available in the Neo4j Graph Data Science library. To top it off, we’ll look at a brute force solution for a Santa...	[ { "code": null, "e": 852, "s": 172, "text": "In the first part of the series, we constructed a knowledge graph of monuments located in Spain from WikiData API. Now we’ll put on our graph data science goggles and explore various pathfinding algorithms available in the Neo4j Graph Data Science library...
Learn Bayes Theorem by Detecting SPAM \| by GreekDataGuy \| Towards Data Science	This tutorial has 2 parts:1. Deriving Bayes theorem from conditional probability2. Predicting if an SMS message is a spam I covered conditional probability in more depth here. Conditional probability tells us the probability of an event occurring, given another event. P(A\|B) = P(A ∩ B) / P(B) is the probability A occur...	[ { "code": null, "e": 293, "s": 171, "text": "This tutorial has 2 parts:1. Deriving Bayes theorem from conditional probability2. Predicting if an SMS message is a spam" }, { "code": null, "e": 347, "s": 293, "text": "I covered conditional probability in more depth here." }, { ...
Python \| Convert a list of lists into tree-like dict - GeeksforGeeks	18 Feb, 2019 Given a list of lists, write a Python program to convert the given list of lists into a tree-like dictionary. Examples: Input : [[1], [2, 1], [3, 1], [4, 2, 1], [5, 2, 1], [6, 3, 1], [7, 3, 1]] Output : {1: {2: {4: {}, 5: {}}, 3: {6: {}, 7: {}}}} Input : [['A'], ['B', 'A'], ['C', 'A'], ['D', 'C', 'A']] Ou...	[ { "code": null, "e": 23901, "s": 23873, "text": "\n18 Feb, 2019" }, { "code": null, "e": 24011, "s": 23901, "text": "Given a list of lists, write a Python program to convert the given list of lists into a tree-like dictionary." }, { "code": null, "e": 24021, "s": ...
Connecting to SQL Database using SQLAlchemy in Python	19 Dec, 2021 In this article, we will see how to connect to an SQL database using SQLAlchemy in Python. To connect to a SQL database using SQLAlchemy we will require the sqlalchemy library installed in our python environment. It can be installed using pip – $ pip install sqlalchemy The create_engine() method of sqlalch...	[ { "code": null, "e": 28, "s": 0, "text": "\n19 Dec, 2021" }, { "code": null, "e": 119, "s": 28, "text": "In this article, we will see how to connect to an SQL database using SQLAlchemy in Python." }, { "code": null, "e": 273, "s": 119, "text": "To connect to a...
Delete alternate nodes of a Linked List	03 Jul, 2022 Given a Singly Linked List, starting from the second node delete all alternate nodes of it. For example, if the given linked list is 1->2->3->4->5 then your function should convert it to 1->3->5, and if the given linked list is 1->2->3->4 then convert it to 1->3. Method 1 (Iterative) Keep track of previou...	[ { "code": null, "e": 52, "s": 24, "text": "\n03 Jul, 2022" }, { "code": null, "e": 317, "s": 52, "text": "Given a Singly Linked List, starting from the second node delete all alternate nodes of it. For example, if the given linked list is 1->2->3->4->5 then your function should c...
SortedMap Interface in Java with Examples	20 Aug, 2020 SortedMap is an interface in the collection framework. This interface extends the Map interface and provides a total ordering of its elements (elements can be traversed in sorted order of keys). The class that implements this interface is TreeMap. The main characteristic of a SortedMap is that it orders t...	[ { "code": null, "e": 54, "s": 26, "text": "\n20 Aug, 2020" }, { "code": null, "e": 303, "s": 54, "text": "SortedMap is an interface in the collection framework. This interface extends the Map interface and provides a total ordering of its elements (elements can be traversed in so...
Matplotlib.axes.Axes.text() in Python	13 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": "\n13 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...
How to use Glob() function to find files recursively in Python?	To use Glob() to find files recursively, you need Python 3.5+. The glob module supports the "" directive(which is parsed only if you pass recursive flag) which tells python to look recursively in the directories. import glob for filename in glob.iglob('src//*', recursive=True): print(filename) You can check th...	[ { "code": null, "e": 1403, "s": 1187, "text": "To use Glob() to find files recursively, you need Python 3.5+. The glob module supports the \"**\" directive(which is parsed only if you pass recursive flag) which tells python to look recursively in the directories. " }, { "code": null, "e"...
Docker – LABEL Instruction	28 Oct, 2020 Labels are used in Dockerfile to help organize your Docker Images. Labels are key-value pairs and simply adds custom metadata to your Docker Images. Some key points associated with the LABEL instructions are as follows: To include spaces inside a label, you can use quotes. For multi line labels, you can us...	[ { "code": null, "e": 28, "s": 0, "text": "\n28 Oct, 2020" }, { "code": null, "e": 248, "s": 28, "text": "Labels are used in Dockerfile to help organize your Docker Images. Labels are key-value pairs and simply adds custom metadata to your Docker Images. Some key points associated...
Sort an array of strings based on count of distinct characters	18 Dec, 2020 Given a string array arr[] as input, the task is to print the words sorted by number of distinct characters that occur in the word, followed by length of word. Note: If two words have same number of distinct characters, the word with more total characters comes first. If two words have same number of di...	[ { "code": null, "e": 52, "s": 24, "text": "\n18 Dec, 2020" }, { "code": null, "e": 213, "s": 52, "text": "Given a string array arr[] as input, the task is to print the words sorted by number of distinct characters that occur in the word, followed by length of word. " }, { ...
How to create responsive stacked cards hover effect using CSS ?	25 Aug, 2021 Introduction: Cards are a very important part of any website. It is used to display some important information in short to viewers. In this article, we will create responsive stackend cards hover effect using HTML and CSS. In order to achieve a multi-layer stacking effect, you have to follow certain steps ...	[ { "code": null, "e": 28, "s": 0, "text": "\n25 Aug, 2021" }, { "code": null, "e": 358, "s": 28, "text": "Introduction: Cards are a very important part of any website. It is used to display some important information in short to viewers. In this article, we will create responsive ...
Python – Extract Unique values dictionary values	22 Apr, 2020 Sometimes, while working with data, we can have problem in which we need to perform the extraction of only unique values from dictionary values list. This can have application in many domains such as web development. Lets discuss certain ways in which this task can be performed. Method #1 : Using sorted() ...	[ { "code": null, "e": 53, "s": 25, "text": "\n22 Apr, 2020" }, { "code": null, "e": 333, "s": 53, "text": "Sometimes, while working with data, we can have problem in which we need to perform the extraction of only unique values from dictionary values list. This can have applicatio...
JavaScript and Cookies	Web Browsers and Servers use HTTP protocol to communicate and HTTP is a stateless protocol. But for a commercial website, it is required to maintain session information among different pages. For example, one user registration ends after completing many pages. But how to maintain users' session information across all t...	[ { "code": null, "e": 2934, "s": 2600, "text": "Web Browsers and Servers use HTTP protocol to communicate and HTTP is a stateless protocol. But for a commercial website, it is required to maintain session information among different pages. For example, one user registration ends after completing many...
Find two prime numbers with given sum	02 May, 2022 Given an even number (greater than 2 ), print two prime numbers whose sum will be equal to given number. There may be several combinations possible. Print only first such pair. An interesting point is, a solution always exist according to Goldbach’s conjecture.Examples : Input: n = 74 Output: 3 71 Input...	[ { "code": null, "e": 54, "s": 26, "text": "\n02 May, 2022" }, { "code": null, "e": 328, "s": 54, "text": "Given an even number (greater than 2 ), print two prime numbers whose sum will be equal to given number. There may be several combinations possible. Print only first such pai...
GATE \| GATE CS 2021 \| Set 2 \| Question 10	23 May, 2021 Six students P, Q, R, S, T and U, with distinct heights, compare their heights and make the following observations. Observation I: S is taller than R. Observation II: Q is the shortest of all. Observation III: U is taller than only one student. Observation IV: T is taller than S but is not the tallest. The...	[ { "code": null, "e": 28, "s": 0, "text": "\n23 May, 2021" }, { "code": null, "e": 144, "s": 28, "text": "Six students P, Q, R, S, T and U, with distinct heights, compare their heights and make the following observations." }, { "code": null, "e": 179, "s": 144, ...
Scales of Measurement	02 Jul, 2018 Data can be classified as being on one of four scales: nominal, ordinal, interval or ratio. Each level of measurement has some important properties that are useful to know. Properties of Measurement Scales: Identity – Each value on the measurement scale has a unique meaning. Magnitude – Values on the measu...	[ { "code": null, "e": 28, "s": 0, "text": "\n02 Jul, 2018" }, { "code": null, "e": 201, "s": 28, "text": "Data can be classified as being on one of four scales: nominal, ordinal, interval or ratio. Each level of measurement has some important properties that are useful to know." ...
Queries for bitwise AND in the index range [L, R] of the given array	26 Nov, 2021 Given an array arr[] of N and Q queries consisting of a range [L, R]. the task is to find the bit-wise AND of all the elements of in that index range.Examples: Input: arr[] = {1, 3, 1, 2, 3, 4}, q[] = {{0, 1}, {3, 5}} Output: 1 0 1 AND 3 = 1 2 AND 3 AND 4 = 0Input: arr[] = {1, 2, 3, 4, 5}, q[] = {{0, 4},...	[ { "code": null, "e": 54, "s": 26, "text": "\n26 Nov, 2021" }, { "code": null, "e": 216, "s": 54, "text": "Given an array arr[] of N and Q queries consisting of a range [L, R]. the task is to find the bit-wise AND of all the elements of in that index range.Examples: " }, { ...
Linear Convolution using C and MATLAB	13 Jul, 2021 A key concept often introduced to those pursuing electronics engineering is Linear Convolution. This is a crucial component of Digital Signal Processing and Signals and Systems. Keeping general interest and academic implications in mind, this article introduces the concept and its applications and implemen...	[ { "code": null, "e": 53, "s": 25, "text": "\n13 Jul, 2021" }, { "code": null, "e": 386, "s": 53, "text": "A key concept often introduced to those pursuing electronics engineering is Linear Convolution. This is a crucial component of Digital Signal Processing and Signals and Syste...
How to make a timezone aware datetime object in Python	26 Sep, 2021 In this example, we are going to see how to make a timezone-aware DateTime object in Python. Timezone-aware objects are Python DateTime or time objects that include timezone information. An aware object represents a specific moment in time that is not open to interpretation. We can easily check if a dateti...	[ { "code": null, "e": 52, "s": 24, "text": "\n26 Sep, 2021" }, { "code": null, "e": 145, "s": 52, "text": "In this example, we are going to see how to make a timezone-aware DateTime object in Python." }, { "code": null, "e": 328, "s": 145, "text": "Timezone-awa...
How to use NULL in MySQL SELECT statement?	In MySQL, the length of NULL is 0. Here, we will see how NULL can be used with SELECT statement. Let us create a table with the help of CREATE command − Creating a table − mysql> CREATE table NullWIthSelect -> ( -> Name varchar(100) -> ); Query OK, 0 rows affected (0.62 sec) Above, I have created a table successfully. ...	[ { "code": null, "e": 1340, "s": 1187, "text": "In MySQL, the length of NULL is 0. Here, we will see how NULL can be used with SELECT\nstatement. Let us create a table with the help of CREATE command −" }, { "code": null, "e": 1359, "s": 1340, "text": "Creating a table −" }, {...
Java.util.Timer Class in Java	14 Nov, 2021 Timer class provides a method call that is used by a thread to schedule a task, such as running a block of code after some regular instant of time. Each task may be scheduled to run once or for a repeated number of executions. Each timer object is associated with a background thread that is responsible for...	[ { "code": null, "e": 53, "s": 25, "text": "\n14 Nov, 2021" }, { "code": null, "e": 418, "s": 53, "text": "Timer class provides a method call that is used by a thread to schedule a task, such as running a block of code after some regular instant of time. Each task may be scheduled...
How to Convert Excel to XML Format in Python?	17 Feb, 2021 Python proves to be a powerful language when the requirement is to convert a file from one format to the other. It supports tools that can be employed to easily achieve the functionality. In this article, we’ll find out how we will convert from an Excel file to Extensible terminology (XML) files with Pytho...	[ { "code": null, "e": 28, "s": 0, "text": "\n17 Feb, 2021" }, { "code": null, "e": 339, "s": 28, "text": "Python proves to be a powerful language when the requirement is to convert a file from one format to the other. It supports tools that can be employed to easily achieve the fu...
PyQtGraph – Adding Qt Widgets with the Bar Graph	30 Nov, 2021 In this article we will see how we can add Qt widgets with the bar graph in the PyQtGraph module. PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in designing and science applications. Its primary goals are to provide fast, interactive graphics fo...	[ { "code": null, "e": 28, "s": 0, "text": "\n30 Nov, 2021" }, { "code": null, "e": 977, "s": 28, "text": "In this article we will see how we can add Qt widgets with the bar graph in the PyQtGraph module. PyQtGraph is a graphics and user interface library for Python that provides f...
Treap (A Randomized Binary Search Tree)	22 Mar, 2017 Like Red-Black and AVL Trees, Treap is a Balanced Binary Search Tree, but not guaranteed to have height as O(Log n). The idea is to use Randomization and Binary Heap property to maintain balance with high probability. The expected time complexity of search, insert and delete is O(Log n). Every node of Trea...	[ { "code": null, "e": 54, "s": 26, "text": "\n22 Mar, 2017" }, { "code": null, "e": 343, "s": 54, "text": "Like Red-Black and AVL Trees, Treap is a Balanced Binary Search Tree, but not guaranteed to have height as O(Log n). The idea is to use Randomization and Binary Heap property...
Scala List init() method with example	29 Jul, 2019 The init() method is utilized to find all the elements of the list except the last one. Method Definition: def init: List[A] Return Type: It returns all the elements of the list except the last one. Example #1: // Scala program of init()// method // Creating objectobject GfG{ // Main method def m...	[ { "code": null, "e": 28, "s": 0, "text": "\n29 Jul, 2019" }, { "code": null, "e": 116, "s": 28, "text": "The init() method is utilized to find all the elements of the list except the last one." }, { "code": null, "e": 153, "s": 116, "text": "Method Definition:...
Python Program to print digit pattern	16 Jun, 2022 The program must accept an integer N as the input. The program must print the desired pattern as shown in the example input/ output. Examples: Input : 41325 Output : \|**** \|* \|* \| \|***** Explanation: for a given integer print the number of *’s that are equivalent to each digit in the integer. Here the ...	[ { "code": null, "e": 53, "s": 25, "text": "\n16 Jun, 2022" }, { "code": null, "e": 196, "s": 53, "text": "The program must accept an integer N as the input. The program must print the desired pattern as shown in the example input/ output. Examples:" }, { "code": null, ...
Building an End-to-End Defect Classifier Application for Printed Circuit Boards \| by Sean McClure \| Towards Data Science	The Printed Circuit Board (PCB) is in most electronic products, mechanically supporting and connecting components along conductive tracks. Their prevalence underlies the modern electronics industry, with a world market exceeding $60 billion1. PCBs are prone to a variety of defects that impede proper manufacturing, cost...	[ { "code": null, "e": 414, "s": 171, "text": "The Printed Circuit Board (PCB) is in most electronic products, mechanically supporting and connecting components along conductive tracks. Their prevalence underlies the modern electronics industry, with a world market exceeding $60 billion1." }, { ...
Angular Google Charts - Tree Map	TreeMap is a visual representation of a data tree, where each node may have zero or more children, and one parent (except for the root). Each node is displayed as a rectangle, can be sized and colored according to values that we assign. Sizes and colors are valued relative to all other nodes in the graph. Following is ...	[ { "code": null, "e": 2147, "s": 1796, "text": "TreeMap is a visual representation of a data tree, where each node may have zero or more children, and one parent (except for the root). Each node is displayed as a rectangle, can be sized and colored according to values that we assign. Sizes and colors...