Need help fixing simple C calculator

Need help fixing up a C calculator. I wrote it as an exercise, but it simply crashes when given unexpected input. I am a beginner in C coding, but this should be something any experienced C developer could fix.

The project you receive includes the source code and a few compiled binaries. The root EXE contains the application as far as I have come,.

The project has been attached - zip source code is 1234.

Skills: C++ Programming, C Programming, C# Programming, Software Architecture, Windows Desktop

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About the Employer:
( 0 reviews ) Stockholm, Sweden

Project ID: #30522664

45 freelancers are bidding on average $104 for this job


Hi there, I do C programming. I went through your requirements and I would like to do this project if given the opportunity. Let me know if you are interested.

$140 USD in 1 day
(1038 Reviews)
(256 Reviews)

Dear Client! I've read your all description carefully and understood your requirement, so i think i can do your project perfectly. I have good experience in this field. So far, I have accomplished many tasks like this. More

$30 USD in 1 day
(86 Reviews)

###### Experienced in C, C++, Java, Python, Data structure, Algorithm Design and Analysis ######## Hi, Greetings. I am a computer engineer having masters in Mathematics, Computer Science and PhD in Computer Science. More

$40 USD in 5 days
(56 Reviews)
(27 Reviews)
(7 Reviews)

I have gone through your description. "This is my area of specialization, i can get it done 100 % perfectly well. Please ping me in person. I can help you to complete all tasks. I have hands-on experience in this More

$40 USD in 1 day
(28 Reviews)

Dear employer, Hi I can fix your calculator's problem. I am an expert in C. I can help you with your project. Would you please send me a message so that we can talk about it more accurately? I am a computer programme More

$150 USD in 3 days
(16 Reviews)

I am programmer in C language I can work on the c language calculator Please send details of work to be done

$140 USD in 7 days
(26 Reviews)

Dear sir! I'm interested in your project. I have 5 years experience of dealing with C/C++, JAVA and Python. I can finish your project on time. I hope to work on the project with you. Regards.

$30 USD in 1 day
(11 Reviews)

Dear Client! I run your project. I already revised your project. So I suggest 30~50 to do your project. Lets discuss more detail in chat. The output I got is like: op:* num1:2 num2:3 2 * 3 = 6 1 op:+ num1:12 num2:35 More

$30 USD in 1 day
(2 Reviews)

Hi, antonfagerstrom I am able to start asap: Now I have no tasks. I have rich experience with C/C++ programming. I am also expert in data structure and algorithm. I can do it as perfect. I will wait for your contact. B More

$50 USD in 1 day
(5 Reviews)

Hello I can fix your calculator that be written by C perfectly. I can finish this project in a day. I am a senior C/C++ and C# programmer with rich 5+years of experience. I have already enough experience in which I hav More

$50 USD in 1 day
(1 Review)

Hello. Thanks for your job posting. I just checked your project carefully. So it is very motivated and interesting for me. It is an ideal match for my skill and experience. I have rich experience in C/C++ Programming. More

$140 USD in 7 days
(5 Reviews)
(4 Reviews)

*** EXPERT C#.NET DEVELOPER *** I may fix up your calculator written in C# for windows. My expertise includes the following : - .NET - ASP.NET - C#.NET - MYSQL - MS SQL - WPF - WEB FORMS - WINDOWS FORMS - Android - PH More

$30 USD in 1 day
(5 Reviews)
(2 Reviews)

I am a Full Stack Developer with good knowledge and extensive experience of C#[login to view URL], PHP-MYSQL, Python, C/C++, jQuery, JavaScript, CSS-XHTML, Bootstrap etc. I have created many different types of applications using More

$140 USD in 7 days
(2 Reviews)

Hi , I am a CS grad from IIT and I have given many competitive coding tests. I am proficient in C/C++. Do let me know if you need my help.

$167 USD in 1 day
(2 Reviews)

Dear, Client. As a c/c++ expert, I can say that I will complete your project perfectly. Please contact me and discuss in detail. Thank you.

$250 USD in 7 days
(2 Reviews)