#include <bits/stdc++.h>
using namespace std;
int main()
{
int a[150],i,j,tc,n,sum;
cin>>tc;
while(tc--)
{
sum=0;
cin>>n;
for(i=0;i<n;i++)
cin>>a[i];
sort(a,a+n);
for(i=0;i<n-1;i++)
sum+=abs(a[i]-a[i+1]);
sum*=2;
cout<<sum<<endl;
}
return 0;
}
Ready to leverage AI in your development lifecycle? Our 2025 C-level guide covers strategic implementation, process tuning, and managing expectations for real ROI.
Unlock next-level efficiency with AI workflow automation. Discover the best tools to streamline processes, reduce errors, and empower your team to innovate.
Unlock the full power of generative AI models like GPT-4. Our guide to AI prompt engineering teaches you how to craft effective prompts for better results.
Discover the top AI tools that actually boost business ROI. Our guide covers the best AI software for marketing, sales, and productivity to drive real growth.
Discover how Amazon’s new generative AI agent is revolutionizing e-commerce by automating listings, enhancing descriptions, and boosting sales for sellers.
Discover OpenAI’s new AgentKit, a revolutionary toolkit announced at DevDay 2025 for building custom AI agents to automate complex business tasks. Learn more!
Ready to leverage AI in your development lifecycle? Our 2025 C-level guide covers strategic implementation, process tuning, and managing expectations for real ROI.
Unlock next-level efficiency with AI workflow automation. Discover the best tools to streamline processes, reduce errors, and empower your team to innovate.
Unlock the full power of generative AI models like GPT-4. Our guide to AI prompt engineering teaches you how to craft effective prompts for better results.
Discover the top AI tools that actually boost business ROI. Our guide covers the best AI software for marketing, sales, and productivity to drive real growth.
Discover how Amazon’s new generative AI agent is revolutionizing e-commerce by automating listings, enhancing descriptions, and boosting sales for sellers.
Discover OpenAI’s new AgentKit, a revolutionary toolkit announced at DevDay 2025 for building custom AI agents to automate complex business tasks. Learn more!
Relational Algebra The part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formula and equations. Ex: (x + y) · z = (x · z) + (y · z). The main application of relational algebra is providing a theoretical foundation for relational databases, particularly query languages for such databases. Relational algebra...
Components of the Database System Environment There are five major components in the database system environment and their interrelationships are. Hardware Software Data Users Procedures Hardware: The hardware is the actual computer system used for keeping and accessing the database. Conventional DBMS hardware consists of secondary storage devices, usually...
Database Languages A DBMS must provide appropriate languages and interfaces for each category of users to express database queries and updates. Database Languages are used to create and maintain database on computer. There are large numbers of database languages like Oracle, MySQL, MS Access, dBase, FoxPro etc. Database Languages: Refers to the languages used to...
What is DBMS? A Database Management System (DBMS) is a collection of interrelated data and a set of programs to access those data. Database management systems (DBMS) are computer software applications that interact with the user, other applications, and the database itself to capture and analyze data. Purpose of Database Systems The collection of data, usually...
Scoping is one of the superpowers that eloquent grants to developers when querying a model. Scopes allow developers to add constraints to queries for a given model. In simple terms laravel scope is just a query, a query to make the code shorter and faster. We can create custom query with relation or anything with scopes. In any admin project we need to get data...
READING PASSAGE 1: The thylacine Q1. carnivorous keywords: Looked like a dog had series of stripes ate, diet ate an entirely 1 .......................................... diet (2nd paragraph 3rd and 4th line) 1st and 2nd paragraph, 1st paragraph,resemblance to a dog. … dark brown stripes over its back, beginning at the rear of the body and extending onto the...
PASSAGE 1 Q1 (False) (Many Madagascan forests are being destroyed by attacks from insects.) Madagascar's forests are being converted to agricultural land at a rate of one percent every year. Much of this destruction is fuelled by the cultivation of the country's main staple crop: rice. And a key reason for this destruction is that insect pests are destroying vast...
Here we will discuss pros and cons of all the questions of the passage with step by step Solution included Tips and Strategies. Reading Passage 1 –Roman Tunnels IELTS Cambridge 16, Test 4, Academic Reading Module, Reading Passage 1 Questions 1-6. Label the diagrams below. The Persian Qanat Method 1. ………………………. to direct the tunnelingAnswer: posts – First...
Reading Passage 1: Roman Shipbuilding and Navigation, Solution with Answer Key , Reading Passage 1: Roman Shipbuilding and Navigation IELTS Cambridge 16, Test 3, Academic Reading Module Cambridge IELTS 16, Test 3: Reading Passage 1 – Roman Shipbuilding and Navigation with Answer Key. Here we will discuss pros and cons of all the questions of the...
Reading Passage 1: The White Horse of Uffington, Solution with Answer Key The White Horse of Uffington IELTS Cambridge 16, Test 2, Academic Reading Module, Reading Passage 1 Cambridge IELTS 16, Test 2: Reading Passage 1 – The White Horse of Uffington with Answer Key. Here we will discuss pros and cons of all the questions of the passage with...
Cambridge IELTS 16, Test 1, Reading Passage 1: Why We Need to Protect Bolar Bears, Solution with Answer Key Cambridge IELTS 16, Test 1: Reading Passage 1 – Why We Need to Protect Bolar Bears with Answer Key. Here we will discuss pros and cons of all the questions of the passage with step by step...
PASSAGE 1: THE RETURN OF THE HUARANGO QUESTIONS 1-5: COMPLETE THE NOTES BELOW. 1. Answer: water Key words: access, deep, surface Paragraph 2 provides information on the role of the huarango tree: “it could reach deep water sources”. So the answer is ‘water’. access = reach Answer: water. 2. Answer: diet Key words: crucial,...
PASSAGE 1: HENRY MOORE (1898 – 1986 ) QUESTIONS 1-7: DO THE FOLLOWING STATEMENTS AGREE WITH THE INFORMATION GIVEN IN READING PASSAGE 1? 1. Answer: TRUE Key words: leaving school, Moore, did, father, wanted It is mentioned in the first paragraph that “After leaving school, Moore hoped to become a sculptor, but instead he complied with his father’s...
PASSAGE 1: COULD URBAN ENGINEERS LEARN FROM DANCE ? QUESTIONS 1- 6: READING PASSAGE 1 HAS SEVEN PARAGRAPHS, A-G. 1. Answer: B Key words: way of using dance, not proposing By using the skimming and scanning technique, we would find that before going into details about how engineers can learn from dance, the author first briefly mentions ways of...
0 Comments