C Programming
What will be the output of the program code?#include#define a 10void main(){ #define a 50 printf("%d", a);}

Compiler Error
None of These
50
10

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C Programming
What is the difference between a declaration and a definition of a variable?

Both can occur multiple times, but a definition must occur first.
A declaration occurs once, but a definition may occur many times.
Both can occur multiple times, but a declaration must occur first.
A definition occurs once, but a declaration may occur many times.
There is no difference between them.

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C Programming
Which of the following statements are correct about the program below?#includevoid main(){ int size, i; scanf("%d", &size); int arr[size]; for(i=1; i<=size; i++) { scanf("%d", arr[i]); printf("%d", arr[i]); }}

The code is erroneous since the subscript for array used in for loop is in the range 1 to size.
The code is correct and runs successfully.
None of these
The code is erroneous since the values of array are getting scanned through the loop.
The code is erroneous since the statement declaring array is invalid.

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