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C Programming

C Programming
Which of the following function calculates the square of 'x' in C?

pow(2, x)
power(2, x)
sqr(x)
power(x, 2)
pow(x, 2)

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C Programming
What does the following declaration mean?int (*ptr)[10];

ptr is a pointer to an array of 10 integers
ptr is an pointer to array
ptr is array of pointers to 10 integers
ptr is an array of 10 integers

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C Programming
What is the correct value to return to the operating system upon the successful completion of a program?

1
-1
Program do no return a value.
2

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C Programming
Determine Output:void main(){ struct xx { int x=3; char name[] = "hello"; }; struct xx *s = malloc(sizeof(struct xx)); printf("%d", s->x); printf("%s", s->name); }

Linking error
Compiler Error
3 hello
None of these

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C Programming
What number will z in the sample code given below?int z, x=5, y= -10, a=4, b=2;z = x++ - --y*b/a;

6
9
11
10
5

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C Programming
Which of the following is the correct way of declaring a float pointer:

float ptr;
float *ptr;
None of these
*float ptr;

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