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Operations on Arrays in Data Structure
In this blog post, we will be discussing the various operations that can be performed on 1D arrays in data structures. We have already covered the fundamentals of arrays, including why they are needed, how to declare them, and their memory representation in a previous post. Today, we will focus on how to traverse an array, how to insert data into an array, and the three types of insertion (at the beginning, at the end, or at a specific position). The most important operations we will cover are array traversal, insertion, deletion, sorting, and searching for a particular key.
Traversal and Insertion with Code Examples
We will start by discussing how to traverse an array and insert data into an array, with the help of code examples. We will also provide code for array deletion.
Array Size and Memory Allocation
Before we dive into the code, it's important to understand that the size of an array is fixed at compile time and cannot be changed at runtime. Additionally, arrays do not have any bounds checking property at runtime, so it is the programmer's responsibility to check the boundaries of the array in the program. For example, if we declare an array of size 50,200 bytes of memory would be allocated by the memory manager. The base address is 100, so 100 to 299 bytes should be allocated to this array.
Reading and Writing Data
Now, let's discuss how to read and write data in an array. The scanf function is used to take input from the user, and the printf function is used to print something on the output screen. When using scanf, we write %d for integers. We use a for loop to iterate over the array, and the value starts from 0 till the size minus one (i++).
Maximum Array Size and User Input
The maximum size of an array is determined by the limit of the size of an array. The user can insert data into the array, and the number of data they want to insert is the size of the array. For example, if the size of the array is five, the user can insert five elements only.
Inserting Data and Indexing
The user can insert data into an array by using the scanf function. The value to insert starts at 0 and goes up to 4. The length of a single element is the same as the number of bytes that will be inserted. The maximum number of elements is the total number of items that can be inserted, not the size of the array.
The index for a value is a single number, and the number is not an error. The result of the value can be an error or a number.
Deletion and Sorting
In addition to insertion, we will also cover array deletion and sorting. Searching for a particular key in an array will also be discussed.
Overall, arrays are an important data structure in computer science, and understanding how to perform operations on arrays is essential for any programmer. By following the code examples provided in this blog post, you should have a better understanding of how to traverse an array, insert and delete data, and sort an array.
Inserting Data at Specific Positions
In this tutorial, we will discuss how to insert data at specific positions in an array. We will also cover how to modify the code to insert data at the beginning and end of the array.
First, we declare a variable 'i' and the header files. Next, we write a 'for' loop to create a diary using an array. The code will look like this:
int i;
int a[50];
for(i=0;i<5;i++){
a[i]=i+1;
printf("Index: %d, Value: %d\n",i,a[i]);}
This code will create an array of size 50 and print the values of the array.
It is important to note that there is no concept of bound checking in an array. It is the programmer's responsibility to check the upper bound limit of the array. To check for an overflow condition, we can insert the following line of code after inserting the size:
if(size > 50){
printf("Overflow condition");}
If the array is not full, we can insert a new element at a specific position using the following code:
if(!full){
for(i=size;i>pos;i--){
a[i]=a[i-1];}
a[pos]=num;
size++;}
If the array is full, we cannot insert a new element. The programmer can choose to either not insert any elements or overwrite an existing element.
Operations on Arrays in Data Structure
In this blog post, we will be discussing the various operations that can be performed on 1D arrays in data structures. We have already covered the fundamentals of arrays, including why they are needed, how to declare them, and their memory representation in a previous post. Today, we will focus on how to traverse an array, how to insert data into an array, and the three types of insertion (at the beginning, at the end, or at a specific position). The most
Operations on Arrays in Data Structure In this blog post, we will be discussing the various operations that can be performed on 1D arrays in data structures. We have already covered the fundamentals of arrays, including why they are needed, how to declare them, and their memory representation in a previous post. Today, we will focus on how to traverse an array, how to insert data into an array, and the three types of insertion (at the beginning, at the end, or at a specific position). The most important operations we will cover are array traversal, insertion, deletion, sorting, and searching for a particular key. Traversal and Insertion with Code Examples We will start by discussing how to traverse an array and insert data into an array, with the help of code examples. We will also provide code for array deletion. Array Size and Memory Allocation Before we dive into the code, it's important to understand that the size of an array is fixed at compile time and cannot be changed at runtime. Additionally, arrays do not have any bounds checking property at runtime, so it is the programmer's responsibility to check the boundaries of the array in the program. For example, if we declare an array of size 50, 200 bytes of memory would be allocated by the memory manager. The base address is 100, so 100 to 299 bytes should be allocated to this array. Reading and Writing Data Now, let's discuss how to read and write data in an array. The scanf function is used to take input from the user, and the printf function is used to print something on the output screen. When using scanf, we write %d for integers. We use a for loop to iterate over the array, and the value starts from 0 till the size minus one (i++). Maximum Array Size and User Input The maximum size of an array is determined by the limit of the size of an array. The user can insert data into the array, and the number of data they want to insert is the size of the array. For example, if the size of the array is five, the user can insert five elements only. Inserting Data and Indexing The user can insert data into an array by using the scanf function. The value to insert starts at 0 and goes up to 4. The length of a single element is the same as the number of bytes that will be inserted. The maximum number of elements is the total number of items that can be inserted, not the size of the array. The index for a value is a single number, and the number is not an error. The result of the value can be an error or a number. Deletion and Sorting In addition to insertion, we will also cover array deletion and sorting. Searching for a particular key in an array will also be discussed. Overall, arrays are an important data structure in computer science, and understanding how to perform operations on arrays is essential for any programmer. By following the code examples provided in this blog post, you should have a better understanding of how to traverse an array, insert and delete data, and sort an array. Inserting Data at Specific Positions In this tutorial, we will discuss how to insert data at specific positions in an array. We will also cover how to modify the code to insert data at the beginning and end of the array. First, we declare a variable 'i' and the header files. Next, we write a 'for' loop to create a diary using an array. The code will look like this: int i; int a[50]; for(i=0;i<5;i++){ a[i]=i+1; printf("Index: %d, Value: %d\n",i,a[i]); } This code will create an array of size 50 and print the values of the array. It is important to note that there is no concept of bound checking in an array. It is the programmer's responsibility to check the upper bound limit of the array. To check for an overflow condition, we can insert the following line of code after inserting the size: if(size > 50){ printf("Overflow condition"); } If the array is not full, we can insert a new element at a specific position using the following code: if(!full){ for(i=size;i>pos;i--){ a[i]=a[i-1]; } a[pos]=num; size++; } If the array is full, we cannot insert a new element. The programmer can choose to either not insert any elements or overwrite an existing element.
I 'was' a top tutor on studypool. I became a tutor on studypool like three weeks ago, then I was given the badge of top tutor in 11 days for excellent performance, then I got a question to write a research paper and an interview guide in 3 hours for $70. I completed the question as instructed with no mistakes and no plagiarism for the content except the 6 cited sources in the research paper. The student got the answer and didn't complain about the answer to me in the chatbox. The next day, I get a message from studypool that my answer is refunded because I submitted a plagiarised answer. I appealed to it by saying that my answer has no plagiarised content except for the sources cited which is obvious and I showed them the plagiarism report of it which clearly shows that answer has no plagiarised content except for the cited sources. They didn't reply back to the appeal even after seeing the message, but instead, they revoked my top tutor badge and suspended my account for 3 days. I again messaged them about the issue, requesting them not to revoke my top tutor badge, but no reply from them.
Do you see something very unusual about their refund? The student who they claim requested a refund for the answer did not complain to me about the answer. Do you think it is possible? A student getting a plagiarised answer from the tutor which was worth $70 and not complaining to the tutor about it.
Studypool clearly knows that the student did not ask for the refund, they have kept the money for themselves so that they don't have to pay the tutor.
Well, I learned my lesson from this and I am going to complain against studypool to the cybercrime cell for fraud.
Studypool's tutors are very underpaid.
I made $107 in the first week by bidding on questions from early mornings to late nights. I bid on 150 questions every day on average to win just one question.
There are many websites available where you can solve students' doubts, tutor them and get paid accordingly. Don't waste your valuable time on this fraud website.
I will attach some screenshots of the chats showing that they don't respond even after seeing the message and how my account was suspended, my top tutor badge got revoked and how they took money from me in the name of a refund.
I have read about many frauds that studypool has done to the tutors and some of them have agreed to complain about their fraud to the Cyber Crime Cell.
I request you to speak up against these fraudsters and complain against them, so that their website gets banned.
Don't use Studypool to become a tutor.
I signed up as a tutor on Studypool kind of on a whim. Advertisements for the service, I noticed, boast that there's no waiting period to receive payments, and some students are willing to pay good money for a tutor to do their homework for them.
So, I signed up. If I remember correctly, there was a short grammar/writing assessment, and then I came to a screen stating my application was under review and I would have a decision on it within 24 hours.
The next day, when the same screen popped up upon login, I opened the chat box in the lower right hand corner to inquire about the delay, but instead of getting an in-chat answer, I received an email a little while later responding to my question, which I found kind of wonky. The studypool rep told me to give it another 24-48 hours.
Okay. No problemo.
A couple days later, after I'd already forgotten all about my application with Studypool, I was unceremoniously approved.
The first thing I did was go to look through the student questions. I liked how many topics there were to choose from. I had to do 3 "newbie" questions as an, uh, assessment. A post-assessment assessment, I guess.
Okay. No problemo.
The newbie questions are easier to "score" than non-newbie questions, which you have to bid on competitively against other tutors. I wrote my first answer -- a general explainer on Florida's child support laws (500 words, cite sources following the APA style guidelines) -- for $5, which I assumed would be transferred into my account automatically, per the aforementioned payout guarantees.
I finished the essay and submitted it to the student. Then I got scolded by pop-up text boxes about not introducing myself to the student first, using contempo-casual lingo to make the student feel comfortable. There was also a message above my text box where I could type messages to the student helpfully urging me to use gifs and emojis liberally, again, to make the student feel comfortable.
I wrote something like, "Hey there! All done with your assignment! Please let me know if you have any questions!" And then I tacked on three of those "ok" sign emojis.
The student never responded. My payment didn't come, either. As it turns out, the student has 72 hours after an answer is submitted to review it.
Okay. No problemo.
I moved on. Next question: "Explain the rise and fall of the Byzantine Empire." Same style guidelines. $5.
This time, I sent the student an introductory message that was almost identical to the message I'd sent the last student about finishing up. I looked for a good gif to add but I couldn't find one so I just added more "ok" emojis instead so the student wouldn't get anxiety.
I completed the assignment and submitted it. 72 hours. I began looking for the next question. I noted before beginning my next search that the student never responded to my introduction.
The third assignment was something medical-related for $4, but had no minimum word count. I finished it and turned it in. This time I did not bother with an introduction. It didn't seem to matter. None of the students responded to any of my messages at all.
The assignments, however, were all approved, and I was congratulated for submitting high quality answers and promoted to "rising star" status. I still have not received payment for answers about one week after submitting them. There's also something about a commission rate, so I'm fairly certain I'll be getting my $14 total minus 20% commission the site "earns" on each of my answers, leaving me instead with $11.20 for over 1,000 words, which I've still yet to receive.
I've never received an assignment since those first three newbie questions. The students are prompted to submit a "range" they're willing to pay, and most of the questions I'm qualified -- as a "rising star" -- to answer are in the $1-$20 range. I always bid at the top dollar amount, because even then, the rate the student is paying for the amount of work they're demanding is laughably low. There *is* an option to bid higher than the student's range if they're being unrealistic, but that's probably studypool suicide considering other tutors are willing to answer questions within the student's price range.
The website itself is what bothered me the most about Studypool. There is a drop-down menu at the top right corner where you can view your profile, your tutor panel, your questions, etc., but your tutor panel and your questions are the same thing, and you are taken to the same page when you click either one. Your profile is this wonky looking page with something you wrote in your application plastered to the bio section. When I once again opened the chat box to ask how I could change it, I received an email again hours later that said "you can do it through us" -- that's it.
I also downloaded the app, and it seems to be an improvement, if only they had a way to access your profile (and update your bio yourself), review your tutor panel, see your messages, see your questions (past and present), and read your reviews from students. I also can't find anywhere -- online or in the app -- to view my earnings. And I've looked and looked (though admittedly, I have not asked).
Overall, Studypool is an okay concept, although I have a moral aversion to helping students cheat. What can I say? It's hard out here.
Suggested improvements: Make the website interface more seamless, clean up the useless buttons on the drop-down menu that all go to the same place, force students to be more realistic with regard to pricing, respond to technical issues in-chat or don't offer a chat box at all, and be more clear about how everything works from the beginning.
Update 2/18: Being that I was unwilling to partake in the "race to the bottom" that bidding on assignments consists of, I decided not to pursue Studypool any further and instead cash out the pittance I earned.
I have been informed that I cannot withdraw my funds until I reach $50 (so like, never), and after emailing several different people -- quite politely, I might add -- I have arrived at the following realization:
Studypool makes money by advertising a service to students, and offers tutors the opportunity to earn money by fulfilling that service. Tutors sign up, perform Studypool's services, the students pay Studypool so that Studypool can pay the tutors, and Studypool just keeps the money instead.
I attempted to escalate my claim to receive the payouts I earned, but was simply told by a bored Studypool rep that if I wanted to see the money I already earned, they suggest I continue working on the platform until I reach $50. In the meantime, they will simply be keeping my earnings.
The students whose assignments I did were quite pleased with the work I provided, and I'm afraid they will leave Studypool a good review, thus generating more business for this site.
Final judgement: I wish I knew which VC firm funded this POS service at the startup stage so I could go chuck a rock through their window.
For students: You can receive high-quality, college-level work for super cheap on this site. But please be aware that the money you pay for this work is not going to the person who's actually doing the work for you. They are getting scammed.
I wasn't using Studypool as a consumer. I was part of the business model. I provided content as a "tutor" which the students I helped paid for, and the site kept. I did three assignments and have never been paid for them.
Studypool and its CHEAT on university club for FAKE sponsorship:
Personally, my club at univesrity of michigan has been contact by alex scott which is believed
--------------------------evidence of email ------------------------------------------------
Hey there,
Im Alex, Im the head of outreach at Studypool. Were an on demand tutoring service.
Wed like to sponsor your club! As an education business we are passionate about helping students and are always looking for ways to further support them beyond our tutoring service.
We'd love to make a financial contribution (sponsorship).
Would this be of interest to you?
Regards,
Alex
--------------------------evidence of email ------------------------------------------------
Hello Shaowu,
We are glad to hear that youre interested! We are interested in starting by contributing $100 now and make larger contributions in the future. You can view some of the clubs that we have sponsored in the past https://www.studypool.com/sponsorship. Typically clubs that we sponsor will mention us on their website. Following this criteria:
Share a link back to Studypool (https://www.studypool.com/online-tutor-job) by adding the following two sentences to your webpage. This is the sentence Studypool is an online marketplace that connects students with questions with tutors who can answer them. Using Studypool gives you access to thousands of verified tutors to help you with any question at any time.".
Make sure the word - Studypool in the sentence is clickable and redirects to the this link - (https://www.studypool.com/online-tutor-job).
Heres an example: Stanford Womens Volleyball Team http://web.stanford.edu/.../womensc.../cgi-bin/wordpress/...
Look at the attached document for more details.
Does this sound good?
About us: Studypool is the largest online tutoring platform. We have helped over 1.4 million students and have close to 45 thousand tutors on our platform. Our mission is to use technology to help students learn more efficiently.
We are really excited to work with you guys! As our partnership grows, we are interested in making larger sponsorships.
Cheers,
Alex
Head of Public Outreach | Studypool
--------------------------------------------------------------------------------------------------------------
Then we replied several times there is no response at all. I post this here in order to let other clubs know what they are doing and waste our time.
Other similar cases of other university clubs I have found on the internet
http://imgur.com/a/yKqsS