GATE 2021 · Set-2
Consider the following ANSI C program.
c
Which one of the statements below is correct about the program?
#include <stdio.h>
#include <stdlib.h>
struct Node{
int value;
struct Node *next;};
int main(){
struct Node *boxE, *head, *boxN; int index = 0;
boxE = head = (struct Node *) malloc(sizeof(struct Node));
head→value = index;
for (index = 1; index ≤ 3; index++){
boxN = (struct Node *) malloc(sizeof(struct Node));
boxE→next = boxN;
boxN→value = index;
boxE = boxN; }
for (index = 0; index ≤ 3; index++) {
printf("Value at index %d is %d\n", index, head→value);
head = head→next;
printf("Value at index %d is %d\n", index+1, head→value); } }