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[C++] Tutorial #1 Simple Sum/Average
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coolbunny1234,
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By Mighty Pen · Posted
Poorly or not, you're confronted to a decision when you visit this kind of website. -
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This tool is for ripping CDs not burning them. So it's to save cd audio tracks as files. Simple old tool to do it. For burning I used to use Nero Burning Tools back in the day rather than the ones you listed. -
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"The company has recently announced the forming of a new agentic AI team to develop an agentic AI framework for use in robotics." I wonder if any of their executives attented, "Microsoft Build 2025" last month? -
By pradeepviswav · Posted
Microsoft Build conference to leave Seattle after years in the city by Pradeep Viswanathan Microsoft Build is a flagship annual developer conference held by Microsoft since 2011. In 2017, Microsoft relocated Build from San Francisco to its home turf in Seattle. The proximity to its main campus allowed greater participation from its own engineers and executives, offering attendees a more integrated experience. Today, Jonathan Choe revealed on X that Microsoft has decided to move its Build developer conference out of Seattle. He discovered this information via an email sent by Visit Seattle to its members. Visit Seattle is a private, non-profit destination marketing organization that promotes travel to Seattle and King County. As a result of the move, Seattle-based hotels could lose approximately 9,314 room nights annually. Surprisingly, Visit Seattle’s message included several details about Microsoft’s reasons for the change. The primary reason appears to have come from within Microsoft itself. The company feels that Build lost momentum post-COVID, and the scheduling conflict with Google I/O, a competing event, has made it harder to attract the intended audience. Microsoft’s leadership believes they can better re-energize the program and boost attendance by moving it out of Seattle. The note even suggests that Build will likely be relocated to San Francisco or Las Vegas in 2026. Another factor contributing to the decision is the condition of the city. Last month, during the conference, Microsoft leadership and attendees walked between the Hyatt Regency and the Arch building on 8th Street. Reportedly, there were complaints about the general uncleanliness of the area, the visible presence of individuals using drugs, and unhoused individuals in a recurring tent in the Arch Tunnel. Visit Seattle believes these concerns also played a role in Microsoft’s final decision to relocate Build. Given Microsoft's high-profile presence and the economic impact of the event, this relocation may spark a political storm within the Seattle mayor’s office, drawing criticism over the city’s handling of downtown conditions. -
By MrSinister · Posted
This is very exciting, happy to see it come back to RC.
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Question
coolbunny1234
As I do on most forums that I join, I usually post a series of tutorials for programming, specifically C++. I'll be creating tutorials at random or by request, and usually cover most of the basics, advancing into intermediate programming and later scratching the surface of more advanced programs.
This tutorial assumes you have basic, minimal knowledge of C++.
What you will need:
And that's it! I currently use Visual Studio 2013 Professional, I got it for free via Dreamspark (if you're a college student like myself, go grab it now) or download the evaluation software.
http://www.visualstudio.com/downloads/download-visual-studio-vs
Now for the tutorial! This program is a simple program that asks the user to specify the amount of grades you want averaged and summed. It then asks for the actual grade of each, followed by the logic of average/sum of the user specified grades.
Step 1
Open Visual Studio, and click File > New Project. A pop up window will appear, and on the left hand tab, select Visual C++, and then Win32 Console Application.
A screen will appear, click next, but do not click finish on the next screen!
Before clicking Finish, make sure you check off the box that says "Empty Project"
Next, Click the tab Project > Add New Item
A screen will appear like this one, chose the .cpp and name it whatever you'd like. This file is the source code file for your program.
You now have a blank workspace for your program, time to dive into the language.
Step 2
We're now going to add the file headers to the source. There are many functions and inputs in the language of C++, and these headers allow us access to them so we don't have to code them individually in each program. I.e the function "cout" , or command output, allows us to print whatever we want on screen.
So go ahead and add these file headers.
And here's an image for the visual learners of what it should be so far.
Step 3
After we add the headers, we need to initiate a start up function, and the default function that's called when a program is ran is int main(). Your entire source for your program, or the entire logic of the program, is within these parameters.
(I'll be adding code to previous code so it's chronological and makes more sense).
Boom! This is our entire program. Within those brackets, you can do whatever, such as say hello..
And if you ran this, it would create a program that says Hello Neowin. Simple, helloworld crap.
Step 4
However, we want to create a program that does averages/sums of user specified input. So how do we do that?
First, we're going to need to init and double a few variables.
The variables above are as follows:
Step 5
We now need to have the program ask the user how many grades are going to be inputted.
Let's break this down a little if you're lost. Currently, the code above simply is going to print out on screen "How many grades are you going to enter?", and n_grades will record whatever number you input.
Step 6
Now for the hardest part of the program. How are we going to code something that gives the user infinite amount of options (how many grades he can input... 1- infinity)? This is where the for loop comes in handy. I'm going to post the code first, then explain.
As you can see, the for loop above does it all for us. If you can't see however, read on. The first line of the loop
Simply inits the variable count, which we use to determine how many times we ask the user to enter a grade, based on his input before. Then, if count is less than or equal to n_grades, then we increment count by one, or count++.
Within the loop, we also take care of the math part of figuring out the sum of the grades, using
which is the same as
Step 7
The rest of the program is a cruise from this point on. We just need to to the math logic for the average, and output the results!! I'll post the full source below, as I've got to finish this up quickly.
And voila! We have a simple program that allows us to find the average and the sum of a user specified number. Sorry for the shortness and briefness of the tutorial, gotta run out the door as we speak. Let me know any areas that could be improved, tutorial wise or code wise. Thank you!
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