Do not use same name as global and local variable.

Not sure whether you can do it , but check stty manual.

Read it in a double character array.

Use a for loop and modulus operator.

Can you calculate sum of 20 integers manually ? if no first , you may first try that.

Use a for loop and modulus operator.

No we cannot give you the code.

What is the prize for doing your homework ?

There is no need to convert by default unsigned char will be promoted to unsigned int .

You may not pass this time , good luck next time.

Calculator requires a stack not a queue .

Move the fork outside any if .

Something like

do {

/* your code here */
} while (condition)

Search for C programming interview question and answer , if the interviewer is as lazy as you are , he may also ask the questions from some job interview question and answer website.

You took a wrong example
a + b + c will be interpreted as (a+b) +c if left to right associativity is assumed.

Num will be always 0 :D

You need to check device driver apis for your cd rom.

Use lex , yacc , bison, etc. it is not that difficult , give it a try.

I vote for yatra.com :D

In prt_even_odd can you not do away with the extra variable ?

The title should have been "if you want to do something in life then do my homework for free , god will bless you and you will go to heaven. "

rand generates an integer but you need a float random number.

In C map, set ,etc are not defined.

which can pick up executable if it is available in PATH
like

int execv(const char *path, char *const argv[]);

I do not want to specify full path , I want it to search in my PATH and execute .

You can keep all servers ip addresses in a config file , you can then ping them one by one.

man exec , execve , fork ,etc.

Just take a real life scenario(e.g. library, ticket booking, hospital) and simulate in your software project assignment.

Is it filling the bucket ? what problems are you facing ?

You can use lex and yacc.

#pragma extern_prefix (push, "")
#pragma extern_prefix (pop) worked , marking it as solved.

Hi C experts,
In my code I have got
#pragma extern_prefix (push, "");
Some extern function declarations
#pragma extern_prefix (pop, "");
So that compiler does not prepend anything to those...

after first for loop u need to initialize total.

Use char string[10] .

That is lot of homework , are you not planing to join software industry after completing your degree , if yes do not expect others to code for you.

Yes , replace that piece of code with direct assembly code

Kilometer should be float as well.

The function largest has got bunch of syntax errors .

Exam consists of exam papers , students , teachers , marks . Just write down how it works story first.

If you do not know the algo used to encrypt the file , you cannot decrypt it, it could be also illegal.

why do you need it ?