Answer Posted / Rohit Kumar Bhadani
To check if a singly linked list contains a cycle, you can use Floyd's cycle-finding algorithm (also known as the tortoise and hare approach):n
1. Initialize two pointers: slow and fast, moving one step at a time (slow) and two steps at a time (fast).
2. If the fast pointer reaches null or the end of the list before the slow pointer catches up to it, then the list has no cycle.
3. When the fast pointer catches up with the slow pointer, they will meet at the beginning of the loop. This is where you can find the start of the cycle.
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