遞歸迭代

Question

我有這個功能，我想將它改爲迭代的。有誰知道該怎麼做？

#include "list.h" 

int count(LINK head) 
{ 

if(head == NULL) 
    return 0; 
else 
    return (1 + count(head -> next)); 
} 

Answer 1

int count(LINK head) 
{ 
    int count = 0; 
    while(head != NULL) 
    { 
     head = head->next; 
     count = count + 1; 
    } 
    return count; 
}