refactor(searches): Addressed failing build issue

Signed-off-by: Aditya Kumar <aditya.kumar60@infosys.com>

Author: AdityaK60

searches/floyds_cycle_finding.py

@@ -42,26 +42,42 @@ def floyds_cycle_finding(
     >>> floyds_cycle_finding(get_next_node, 0)
 
     """
-    # Main phase: finding a repetition x_i = x_2i.
+    # Phase 1: Find a repetition x_i = x_2i.
     # The hare moves twice as fast as the tortoise.
+    # Start tortoise one step ahead and hare two steps ahead.
     tortoise = successor_function(start_value)
-    hare = successor_function(successor_function(start_value))
+    hare = successor_function(start_value)
+    if hare is None:
+        return None
+
+    hare = successor_function(hare)
+    if hare is None:
+        return None
+
+    # The main loop for finding a meeting point in the cycle.
     while tortoise != hare:
-        # If the hare reaches the end of the sequence, there is no cycle.
-        if hare is None or successor_function(hare) is None:
-            return None
+        # Tortoise moves one step.
         tortoise = successor_function(tortoise)
-        hare = successor_function(successor_function(hare))
 
-    # Phase 2: find the position of the first repetition (mu).
+        # Hare moves two steps, with a check after each step to prevent errors.
+        hare = successor_function(hare)
+        if hare is None:
+            return None
+        hare = successor_function(hare)
+        if hare is None:
+            return None
+
+    # Phase 2: Find the position of the first repetition (mu).
+    # Reset tortoise to the start and move both one step at a time until they meet.
     mu = 0
     tortoise = start_value
     while tortoise != hare:
         tortoise = successor_function(tortoise)
         hare = successor_function(hare)
         mu += 1
 
-    # Phase 3: find the length of the cycle (lam).
+    # Phase 3: Find the length of the cycle (lam).
+    # Fix the tortoise and move the hare until it returns to the tortoise.
     lam = 1
     hare = successor_function(tortoise)
     while tortoise != hare: