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DetectCycleLinkedList.java
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DetectCycleLinkedList.java
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/****************************************************************
Following is the class structure of the Node class:
class Node {
public int data;
public Node next;
Node()
{
this.data = 0;
this.next = null;
}
Node(int data)
{
this.data = data;
this.next = null;
}
Node(int data, Node next)
{
this.data = data;
this.next = next;
}
}
*****************************************************************/
public class Solution {
public static boolean detectCycle(Node head) {
//Your code goes here
if (head == null || head.next == null) {
return false;
}
Node slow = head;
Node fast = head.next;
while (fast != null && fast.next != null) {
if (slow == fast) {
return true;
}
slow = slow.next;
fast = fast.next.next;
}
return false;
}
}