What will be the output of the following C code?
#include<stdio.h>
#define hello 10
main()
{
#ifdef hello
#undef hello
#define hello 100
#else
#define hello 200
#endif
printf("%d",hello);
}
#include<stdio.h>
#define hello 10
main()
{
#ifdef hello
#undef hello
#define hello 100
#else
#define hello 200
#endif
printf("%d",hello);
}A. Error
B. 10
C. 100
D. 200
Answer: Option C
This Question Belongs to C Program >> C Preprocessor
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