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C Programming - Pointers - Discussion

Discussion Forum : Pointers - Find Output of Program (Q.No. 3)
Pointers
3.
What will be the output of the program ? 
#include<stdio.h>

int main()
{
    int x=30, *y, *z;
    y=&x; /* Assume address of x is 500 and integer is 4 byte size */
    z=y;
    *y++=*z++;
    x++;
    printf("x=%d, y=%d, z=%d\n", x, y, z);
    return 0;
}
x=31, y=502, z=502
x=31, y=500, z=500
x=31, y=498, z=498
x=31, y=504, z=504
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
92 comments Page 10 of 10.
Xyz said:   1 decade ago
Since given integer 4 bytes and above statement y and z are incrementing, y and z will take 504.
Anusha katta said:   1 decade ago
How is the answer D?.

And can anyone tell the significance of, *y++=*z++; ?.
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