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Create a mirror tree from the given binary tree - GeeksforGeeks	12 Oct, 2021 Given a binary tree, the task is to create a new binary tree which is a mirror image of the given binary tree. Examples: Input: 5 / \ 3 6 / \ 2 4 Output: Inorder of original tree: 2 3 4 5 6 Inorder of mirror tree: 6 5 4 3 2 Mirror tree will be: 5 / \ 6 3 / \ 4 ...	[ { "code": null, "e": 24938, "s": 24910, "text": "\n12 Oct, 2021" }, { "code": null, "e": 25049, "s": 24938, "text": "Given a binary tree, the task is to create a new binary tree which is a mirror image of the given binary tree." }, { "code": null, "e": 25060, "s":...
How to Create Dynamic WebView in Android with Firebase? - GeeksforGeeks	15 Jan, 2021 Converting a website into an application seems like a basic task to do on Android. With the help of WebView, we can show any webpage in our Android Application. We just have to implement the widget of WebView and add the URL inside the WebView which we have to load. So if you are looking for loading a webs...	[ { "code": null, "e": 26491, "s": 26463, "text": "\n15 Jan, 2021" }, { "code": null, "e": 27103, "s": 26491, "text": "Converting a website into an application seems like a basic task to do on Android. With the help of WebView, we can show any webpage in our Android Application. We...
Descriptive Statistic - GeeksforGeeks	22 Apr, 2020 In Descriptive statistics, we are describing our data with the help of various representative methods like by using charts, graphs, tables, excel files etc. In descriptive statistics, we describe our data in some manner and present it in a meaningful way so that it can be easily understood. Most of the tim...	[ { "code": null, "e": 25036, "s": 25008, "text": "\n22 Apr, 2020" }, { "code": null, "e": 25602, "s": 25036, "text": "In Descriptive statistics, we are describing our data with the help of various representative methods like by using charts, graphs, tables, excel files etc. In des...
Python \| Pandas Index.where - GeeksforGeeks	20 Feb, 2019 Pandas Index is an immutable ndarray implementing an ordered, sliceable set. It is the basic object which stores the axis labels for all pandas objects. Pandas Index.where function return an Index of same shape as self and whose corresponding entries are from self where cond is True and otherwise are from ...	[ { "code": null, "e": 25665, "s": 25637, "text": "\n20 Feb, 2019" }, { "code": null, "e": 25818, "s": 25665, "text": "Pandas Index is an immutable ndarray implementing an ordered, sliceable set. It is the basic object which stores the axis labels for all pandas objects." }, { ...
C# Program to Find Sum of Digits of a Number Using Recursion - GeeksforGeeks	22 Apr, 2022 Given a number, we need to find the sum of digits in the number using recursion. In C#, recursion is a process in which a function calls itself directly or indirectly and the corresponding function is known as a recursive function. It is used to solve problems easily like in this article using recursion we...	[ { "code": null, "e": 24302, "s": 24274, "text": "\n22 Apr, 2022" }, { "code": null, "e": 24651, "s": 24302, "text": "Given a number, we need to find the sum of digits in the number using recursion. In C#, recursion is a process in which a function calls itself directly or indirec...
GraphQL - Resolver	Resolver is a collection of functions that generate response for a GraphQL query. In simple terms, a resolver acts as a GraphQL query handler. Every resolver function in a GraphQL schema accepts four positional arguments as given below − fieldName:(root, args, context, info) => { result } An example of resolver functi...	[ { "code": null, "e": 2189, "s": 1951, "text": "Resolver is a collection of functions that generate response for a GraphQL query. In simple terms, a resolver acts as a GraphQL query handler. Every resolver function in a GraphQL schema accepts four positional arguments as given below −" }, { "...
Efficient way to install and load R packages - GeeksforGeeks	09 May, 2021 The most common method of installing and loading packages is using the install.packages() and library() function respectively. Let us see a brief about these functions – Install.packages() is used to install a required package in the R programming language. Syntax: install.packages(“package_name”) library(...	[ { "code": null, "e": 25242, "s": 25214, "text": "\n09 May, 2021" }, { "code": null, "e": 25412, "s": 25242, "text": "The most common method of installing and loading packages is using the install.packages() and library() function respectively. Let us see a brief about these funct...
Spring Boot - Runners	Application Runner and Command Line Runner interfaces lets you to execute the code after the Spring Boot application is started. You can use these interfaces to perform any actions immediately after the application has started. This chapter talks about them in detail. Application Runner is an interface used to execute ...	[ { "code": null, "e": 3294, "s": 3025, "text": "Application Runner and Command Line Runner interfaces lets you to execute the code after the Spring Boot application is started. You can use these interfaces to perform any actions immediately after the application has started. This chapter talks about ...
MySQL - DAY() Function	The DATE, DATETIME and TIMESTAMP datatypes in MySQL are used to store the date, date and time, time stamp values respectively. Where a time stamp is a numerical value representing the number of milliseconds from '1970-01-01 00:00:01' UTC (epoch) to the specified time. MySQL provides a set of functions to manipulate the...	[ { "code": null, "e": 2664, "s": 2333, "text": "The DATE, DATETIME and TIMESTAMP datatypes in MySQL are used to store the date, date and time, time stamp values respectively. Where a time stamp is a numerical value representing the number of milliseconds from '1970-01-01 00:00:01' UTC (epoch) to the ...
What is Box Model in CSS?	Every element in an HTML document is rendered as a rectangular box by the browser. The width, height, padding and margin determine the space allocated in an around the element. The following diagram illustrates the box model concept − Source: w3.org Content This includes the actual data in the form of text, image or o...	[ { "code": null, "e": 1297, "s": 1062, "text": "Every element in an HTML document is rendered as a rectangular box by the browser. The width, height, padding and margin determine the space allocated in an around the element. The following diagram illustrates the box model concept −" }, { "cod...
Construct String from Binary Tree in Python	Suppose we have a binary tree we have to make a string consists of parenthesis and integers from a binary tree with the preorder traversing way. A null node will be represented by empty parenthesis pair "()". And we need to omit all the empty parenthesis pairs that don't affect the one-to-one mapping relationship betwe...	[ { "code": null, "e": 1426, "s": 1062, "text": "Suppose we have a binary tree we have to make a string consists of parenthesis and integers\nfrom a binary tree with the preorder traversing way. A null node will be represented by empty\nparenthesis pair \"()\". And we need to omit all the empty parent...
Finding Distant Pairs in Python with Pandas \| by Chris Morrow \| Towards Data Science	An occasional problem that comes up in Computer Science and Data Science is the need to find a pair of numbers in a set of unique numbers that are the farthest from one another. These pair of numbers are referred to as distant pairs, or max distant pairs. Thankfully, with Python and Pandas, we can find the distant pair...	[ { "code": null, "e": 428, "s": 172, "text": "An occasional problem that comes up in Computer Science and Data Science is the need to find a pair of numbers in a set of unique numbers that are the farthest from one another. These pair of numbers are referred to as distant pairs, or max distant pairs....
java.time.Instant.parse() Method Example	The java.time.Instant.parse(CharSequence text) method obtains an instance of Instant from a text string such as 2007-12-03T10:15:30.00Z. Following is the declaration for java.time.Instant.parse(CharSequence text) method. public static Instant parse(CharSequence text) text − the text to parse, not null. an instant, not...	[ { "code": null, "e": 2052, "s": 1915, "text": "The java.time.Instant.parse(CharSequence text) method obtains an instance of Instant from a text string such as 2007-12-03T10:15:30.00Z." }, { "code": null, "e": 2136, "s": 2052, "text": "Following is the declaration for java.time.In...
CakePHP - Working with Database	Working with database in CakePHP is very easy. We will understand the CRUD (Create, Read, Update, Delete) operations in this chapter. Further, we also need to configure our database in config/app_local.php file. 'Datasources' => [ 'default' => [ 'host' => 'localhost', 'username' => 'my_app', 'passw...	[ { "code": null, "e": 2376, "s": 2242, "text": "Working with database in CakePHP is very easy. We will understand the CRUD (Create, Read, Update, Delete) operations in this chapter." }, { "code": null, "e": 2454, "s": 2376, "text": "Further, we also need to configure our database ...
Can main() be overloaded in C++?	In C++, we can use the function overloading. Now the question comes in our mind, that, can we overload the main() function also? Let us see one program to get the idea. #include <iostream> using namespace std; int main(int x) { cout << "Value of x: " << x << "\n"; return 0; } int main(char *y) { cout << "Value...	[ { "code": null, "e": 1191, "s": 1062, "text": "In C++, we can use the function overloading. Now the question comes in our mind, that, can we overload the main() function also?" }, { "code": null, "e": 1231, "s": 1191, "text": "Let us see one program to get the idea." }, { ...
Churn Prediction using Neural Networks and ML models \| by Devarsh Raval \| Towards Data Science	This story is a walk-through of a notebook I uploaded on Kaggle. Originally, it only used machine learning models and since then I have added a couple of basic neural network models. The churn prediction topic has been extensively covered by many blogs on Medium and notebooks on Kaggle, however, there are very few usin...	[ { "code": null, "e": 741, "s": 172, "text": "This story is a walk-through of a notebook I uploaded on Kaggle. Originally, it only used machine learning models and since then I have added a couple of basic neural network models. The churn prediction topic has been extensively covered by many blogs on...
Check if a key is present in every segment of size k in an array in C++	With respect of a given array arr1[] with size of array N,one another key X and a segment size K, the task is to determine that the key X present in every segment of size K in arr1[]. Input arr1[] = { 4, 6, 3, 5, 10, 4, 2, 8, 4, 12, 13, 4} X = 4 K = 3 Output Yes There are existence of 4 non-overlapping segments of si...	[ { "code": null, "e": 1246, "s": 1062, "text": "With respect of a given array arr1[] with size of array N,one another key X and a segment size K, the task is to determine that the key X present in every segment of size K in arr1[]." }, { "code": null, "e": 1253, "s": 1246, "text":...
Display the student marks in a single column on the basis of subject in MySQL?	For this, use UNION ALL. Let us first create a table: mysql> create table DemoTable729 ( StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentName varchar(100), MySQLMarks int, CMarks int, JavaMarks int ); Query OK, 0 rows affected (0.40 sec) Insert some records in the table using insert command: my...	[ { "code": null, "e": 1087, "s": 1062, "text": "For this, use UNION ALL." }, { "code": null, "e": 1116, "s": 1087, "text": "Let us first create a table:" }, { "code": null, "e": 1325, "s": 1116, "text": "mysql> create table DemoTable729 (\n StudentId int NOT ...
HiveQL - Select-Group By	This chapter explains the details of GROUP BY clause in a SELECT statement. The GROUP BY clause is used to group all the records in a result set using a particular collection column. It is used to query a group of records. The syntax of GROUP BY clause is as follows: SELECT [ALL \| DISTINCT] select_expr, select_expr, .....	[ { "code": null, "e": 2173, "s": 1950, "text": "This chapter explains the details of GROUP BY clause in a SELECT statement. The GROUP BY clause is used to group all the records in a result set using a particular collection column. It is used to query a group of records." }, { "code": null, ...
Python List cmp() Method	Python list method cmp() compares elements of two lists. Following is the syntax for cmp() method − cmp(list1, list2) list1 − This is the first list to be compared. list1 − This is the first list to be compared. list2 − This is the second list to be compared. list2 − This is the second list to be compared. If elements...	[ { "code": null, "e": 2301, "s": 2244, "text": "Python list method cmp() compares elements of two lists." }, { "code": null, "e": 2344, "s": 2301, "text": "Following is the syntax for cmp() method −" }, { "code": null, "e": 2363, "s": 2344, "text": "cmp(list1, ...
Struts 2 - Exception Handling	Struts provides an easier way to handle uncaught exception and redirect users to a dedicated error page. You can easily configure Struts to have different error pages for different exceptions. Struts makes the exception handling easy by the use of the "exception" interceptor. The "exception" interceptor is included as ...	[ { "code": null, "e": 2439, "s": 2246, "text": "Struts provides an easier way to handle uncaught exception and redirect users to a dedicated error page. You can easily configure Struts to have different error pages for different exceptions." }, { "code": null, "e": 2702, "s": 2439, ...
How to Serve your PyTorch Models. The Newest Version of TorchServe is one... \| by Dimitris Poulopoulos \| Towards Data Science	You have collected your data, processed them, trained your model, fine-tuned it, and the results are promising. Where to go next? How do you make it available to the general public? Well, if you are a TensorFlow user, you might want to fiddle with TFX. TFX is an excellent collection of tools that helps data scientists ...	[ { "code": null, "e": 354, "s": 172, "text": "You have collected your data, processed them, trained your model, fine-tuned it, and the results are promising. Where to go next? How do you make it available to the general public?" }, { "code": null, "e": 647, "s": 354, "text": "Well...
Overlay Histogram with Fitted Density Curve in R - GeeksforGeeks	17 Jun, 2021 In this article, we will be looking at the different approaches to overlay histogram with fitted density curve in R programming language. In this approach for overlaying histogram with the fitted density curve user need not install or import any library as all the function are the base functions of the R p...	[ { "code": null, "e": 25162, "s": 25134, "text": "\n17 Jun, 2021" }, { "code": null, "e": 25300, "s": 25162, "text": "In this article, we will be looking at the different approaches to overlay histogram with fitted density curve in R programming language." }, { "code": nul...
Print Leaf Nodes at a given Level - GeeksforGeeks	06 Aug, 2021 Given a Binary tree, print all the leaf nodes of a Binary tree at a given level L.Examples: Input: 1 / \ 2 3 / / \ 4 5 6 level = 3 Output: 4 5 6 Input: 7 / \ 2 3 / \ \ 4 9 ...	[ { "code": null, "e": 24972, "s": 24944, "text": "\n06 Aug, 2021" }, { "code": null, "e": 25064, "s": 24972, "text": "Given a Binary tree, print all the leaf nodes of a Binary tree at a given level L.Examples:" }, { "code": null, "e": 25346, "s": 25064, "text":...
Building a Dynamic data pipeline with Databricks and Azure Data Factory \| by Paul Simpson \| Towards Data Science	TL;DR A few simple useful techniques that can be applied in Data Factory and Databricks to make your data pipelines a bit more dynamic for reusability. Passing parameters, embedding notebooks, running notebooks on a single job cluster. -Simple skeletal data pipeline -Passing pipeline parameters on execution -Embedding ...	[ { "code": null, "e": 407, "s": 171, "text": "TL;DR A few simple useful techniques that can be applied in Data Factory and Databricks to make your data pipelines a bit more dynamic for reusability. Passing parameters, embedding notebooks, running notebooks on a single job cluster." }, { "code...
Python Pandas - DataFrame.copy() function - GeeksforGeeks	26 Nov, 2020 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. There are many ways to copy DataFrame in pandas. The first way is a simple way of assigning a...	[ { "code": null, "e": 24237, "s": 24209, "text": "\n26 Nov, 2020" }, { "code": null, "e": 24451, "s": 24237, "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 a...
Finding and removing duplicate rows in Pandas DataFrame \| by B. Chen \| Towards Data Science	In data preprocessing and analysis, you will often need to figure out whether you have duplicate data and how to deal with them. In this article, you’ll learn the two methods, duplicated() and drop_duplicates(), for finding and removing duplicate rows, as well as how to modify their behavior to suit your specific needs...	[ { "code": null, "e": 301, "s": 172, "text": "In data preprocessing and analysis, you will often need to figure out whether you have duplicate data and how to deal with them." }, { "code": null, "e": 533, "s": 301, "text": "In this article, you’ll learn the two methods, duplicated...
How to convert dataframe columns from factors to characters in R? - GeeksforGeeks	26 May, 2021 In this article, we will discuss how to convert dataframe columns from factors to characters in R Programming Language. A dataframe can have different types of columns stacked together to form a tubular structure. Easy modification of the columns’ data as well as conversion between data types can be conduc...	[ { "code": null, "e": 24851, "s": 24823, "text": "\n26 May, 2021" }, { "code": null, "e": 25298, "s": 24851, "text": "In this article, we will discuss how to convert dataframe columns from factors to characters in R Programming Language. A dataframe can have different types of col...
C# Program to find the smallest element from an array	Declare an array − int[] arr = { 5, 9, 2, 7 }; Now to get the smallest element from an array, use the Min() method − arr.Min()); Here is the complete code − Live Demo using System; using System.Linq; class Demo { static void Main() { int[] arr = { 5, 9, 2, 7 }; Console.WriteLine(arr.Min()); } } 2	[ { "code": null, "e": 1081, "s": 1062, "text": "Declare an array −" }, { "code": null, "e": 1109, "s": 1081, "text": "int[] arr = { 5, 9, 2, 7 };" }, { "code": null, "e": 1179, "s": 1109, "text": "Now to get the smallest element from an array, use the Min() met...
Convert case of elements in a list of strings in Python	As part of data manipulation, we will come across the need to have a single case for all the letters in a string. In this article we will see how to take a list which has string elements with mixed cases. We then apply some python functions to convert them all to a single case. The lower function is a string function t...	[ { "code": null, "e": 1341, "s": 1062, "text": "As part of data manipulation, we will come across the need to have a single case for all the letters in a string. In this article we will see how to take a list which has string elements with mixed cases. We then apply some python functions to convert t...
Servlets - Annotations	So far, you have learnt how Servlet uses the deployment descriptor (web.xml file) for deploying your application into a web server. Servlet API 3.0 has introduced a new package called javax.servlet.annotation. It provides annotation types which can be used for annotating a servlet class. If you use annotation, then the...	[ { "code": null, "e": 2614, "s": 2185, "text": "So far, you have learnt how Servlet uses the deployment descriptor (web.xml file) for deploying your application into a web server. Servlet API 3.0 has introduced a new package called javax.servlet.annotation. It provides annotation types which can be u...
How to get page source as it is in browser using selenium?	We can get page source as it is in browser using Selenium webdriver using the getPageSource method. It allows us to obtain the code of the page source. String p = driver.getPageSource(); We can also obtain the page source by identifying the body tag with the help offindElement method and then apply the getText method o...	[ { "code": null, "e": 1214, "s": 1062, "text": "We can get page source as it is in browser using Selenium webdriver using the getPageSource method. It allows us to obtain the code of the page source." }, { "code": null, "e": 1249, "s": 1214, "text": "String p = driver.getPageSourc...
Infix to Postfix Converter using JavaScript - GeeksforGeeks	05 Jul, 2021 Postfix expressions are easier for a compiler to understand and evaluate. So this is a converter that converts infix expression to postfix expression using JavaScript. Pre-requisites: Stack operation Infix to Postfix conversion Basic JavaScript Approach: Button Convert call function InfixtoPostfix() and th...	[ { "code": null, "e": 25011, "s": 24983, "text": "\n05 Jul, 2021" }, { "code": null, "e": 25179, "s": 25011, "text": "Postfix expressions are easier for a compiler to understand and evaluate. So this is a converter that converts infix expression to postfix expression using JavaScr...
Tryit Editor v3.7	Tryit: HTML deleted text	[]
How to remove all non-alphanumeric characters from a string in MySQL?	Non-alphanumeric characters are as follows − @,!,#,&,(),?, / There is no inbuilt function to remove non-alphanumeric characters from a string in MySQL. Therefore, we create a function which removes all non-alphanumeric characters. The function declaration and definition is as follows. mysql> delimiter // mysql> CREATE...	[ { "code": null, "e": 1107, "s": 1062, "text": "Non-alphanumeric characters are as follows −" }, { "code": null, "e": 1124, "s": 1107, "text": "@,!,#,&,(),?, /\n" }, { "code": null, "e": 1349, "s": 1124, "text": "There is no inbuilt function to remove non-alpha...
Google Maps - Localization	By default, the city names and option names given on the map will be in English. If required, we can display such information in other languages as well. This process is known as localization. In this chapter, we will learn how to localize a map. You can customize (localize) the language of the map by specifying the la...	[ { "code": null, "e": 2079, "s": 1832, "text": "By default, the city names and option names given on the map will be in English. If required, we can display such information in other languages as well. This process is known as localization. In this chapter, we will learn how to localize a map." }, ...
How to change the color of a particular bar using geom_bar in R?	To change the color of a particular bar using geom_bar in R, we can provide the count corresponding to the value for which we want to change the color inside aes function. For Example, if we have a data frame called df that contains two columns say V and F where V is categorical and F is for frequency and we want to ch...	[ { "code": null, "e": 1234, "s": 1062, "text": "To change the color of a particular bar using geom_bar in R, we can provide the count\ncorresponding to the value for which we want to change the color inside aes function." }, { "code": null, "e": 1471, "s": 1234, "text": "For Examp...
ASP.NET Core - Create a User	In this chapter, we will discuss how to create user. To proceed with this, we need to interact with the Identity framework to make sure that the user is valid, then create that user, and then go ahead and log them in. There are two core services of the Identity framework, one is the UserManager, and the other is the Si...	[ { "code": null, "e": 2679, "s": 2461, "text": "In this chapter, we will discuss how to create user. To proceed with this, we need to interact with the Identity framework to make sure that the user is valid, then create that user, and then go ahead and log them in." }, { "code": null, "e"...
Pre-order traversal in a Javascript Tree	In this traversal method, the root node is visited first, then the left subtree and finally the right subtree. We start from A, and following pre-order traversal, we first visit A itself and then move to its left subtree B. B is also traversed pre-order. The process goes on until all the nodes are visited. The output o...	[ { "code": null, "e": 1173, "s": 1062, "text": "In this traversal method, the root node is visited first, then the left subtree and finally the right subtree." }, { "code": null, "e": 1427, "s": 1173, "text": "We start from A, and following pre-order traversal, we first visit A it...
How to query documents by a condition on the subdocument in MongoDB?	Let us first create a collection with documents − > db.demo394.insertOne( ... { ... ... details: [ ... { ... _id: '1', ... startDate: '2018-01-11T07:00:00.000Z', ... endDate: '2019-01-12T07:59:59.999Z' ... }, ... { ... _id: '2', ... startDate: '201...	[ { "code": null, "e": 1112, "s": 1062, "text": "Let us first create a collection with documents −" }, { "code": null, "e": 1574, "s": 1112, "text": "> db.demo394.insertOne(\n... {\n...\n... details: [\n... {\n... _id: '1',\n... startDate: '2018-01-...