public class Solution {
public boolean hasCycle(ListNode head) {
if(head==null || head.next==null){
return false;
}
ListNode slow=head;
ListNode fast=head;
while(fast.next!=null && fast.next.next!=null){
slow=slow.next;
fast=fast.next.next;
if(slow==fast){
return true;
}
}
return false;
}}
This is solution. In this inside while(fast.next!=null && fast.next.next!=null) why && is there,why || is not there as only one can be true to make condition true.
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