C - Pointers - Discussion

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Q.

What will be output of following c program?

#include
int main(){
float *p=(float *)1000;
float *q=(float *)2000;
printf("Difference=%d",q-p);
return 0;
}
A. Difference= 200 B. Difference= 250
C. Difference= 500 D. Difference= 1000

Answer: Option B
Explaination:

q-p=(2000-100)/sizeof(float)

=1000/4
=250


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