Added program for Tower of Hanoi problem.

Tower_of_Hanoi.py

@@ -0,0 +1,20 @@
+def tower_of_hanoi(n, source, auxiliary, target):
+    if n == 1:
+        print(f"Move disk 1 from {source} to {target}")
+        return
+    tower_of_hanoi(n - 1, source, target, auxiliary)
+    print(f"Move disk {n} from {source} to {target}")
+    tower_of_hanoi(n - 1, auxiliary, source, target)
+
+def main():
+    try:
+        num_discs = int(input("Enter the number of discs: "))
+        if num_discs < 1:
+            print("Number of discs must be a positive integer.")
+        else:
+            tower_of_hanoi(num_discs, 'A', 'B', 'C')
+    except ValueError:
+        print("Invalid input. Please enter a positive integer.")
+
+if __name__ == "__main__":
+    main()