Explain what header files do I need in order to define the standard library functions I use?

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When should we use pointers in a c program?

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please give code for this 1 2 4 7 11 16

11 Answers   Intel, Wipro,

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main() { int a,b; printf("%d,%d",scanf("%d%d",&a,&b)); } => do u mean above program's output... =>output will be:2,whatever you enter value for b. =>because scanf is a library fn which will return how many arguements it processes, and second value you are right mr.Satya but i found my self unable to understand that for the first time scanf returns the no of successful matches but how for the second time it returns the value of 'b'.while a function should return the same 'r' value every time.

1 Answers   Cisco,

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if a is an integer variable, a=5/2; will return a value a) 2.5 b) 3 c) 2 d) 0

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what type of errors are checked during compilation

3 Answers  

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What are the types of type specifiers?

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What is the package for freshers(Non IIT) in amazon(hyderabad). And what is the same for those who are a contract employee.

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write a function to swap an array a[5] elements like a[0] as a[5],a[1] as a[4],....a[5] as a[0].without using more than one loop and use one array not to use temp array?

1 Answers   Zensar,

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int i=10; printf("%d %d %d", i, i=20, i);

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Describe the order of precedence with regards to operators in C.

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Why do we need functions in c?

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