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#include <stdio.h>
typedef struct node
{
int val;
struct node *next;
} node_t;
void pushOnTheEnd(node_t *head, int value)
{
node_t *current = head;
while (current->next != NULL)
{
current = current->next;
}
/* now we can add a new variable */
current->next = malloc(sizeof(node_t));
current->next->val = value;
current->next->next = NULL;
}
int numberOfEvenElements(node_t *node)
{
if (node == NULL)
{
return 0;
}
else return (node->val != 0 && node->val % 2 == 0) ? 1 + numberOfEvenElements(node->next) : numberOfEvenElements(node->next) ;
}
int main()
{
node_t *head = malloc(sizeof(node_t));
head->val = 2;
pushOnTheEnd(head, 4);
pushOnTheEnd(head, 6);
// head->next = malloc(sizeof(node_t));
// head->next->val = 4;
// head->next->next = malloc(sizeof(node_t));
// head->next->next->val = 6;
printf("even count = %d", numberOfEvenElements(head));
return 0;
}
