Question

Given the C structure 'struct Node { int data; struct Node *next; };' on a 64-bit system where int is 4 bytes and a pointer is 8 bytes, and assuming no padding is added by the compiler for this structure, what is the value of sizeof(struct Node)?

Q: Answer-Given the C structure 'struct Node { int data; struct Node *next; };' on a 64-bit system where int i...

Without any padding, the structure size is simply the sum of its member sizes 4 bytes for the int data plus 8 bytes for the pointer next, giving 4 8 12 bytes. Note in practice, most 64-bit compilers would insert 4 bytes of padding to align the pointer on an 8-byte boundary, producing 16 bytes but this question explicitly instructs us to assume no padding is applied.