Secure Loops Detection

Problem Statement

Secure Loops Detection Problem Description In the technologically advanced city of Neotera, a vast network of floating bridges connects its hovering stations across the sky. These bridges aren't just architectural marvels — they are woven with encrypted codes that safeguard inter-station transport and communications. The bridge codes, known as CipherStrings, are crafted from mysterious, ancient algorithms and are thought to be unbreakable. Each code is a string of lowercase English letters, deeply tied to the city's defense protocols. Recently, the city's master AI, ORION, detected strange disturbances — loops forming within the bridge network that reflect a symmetrical frequency signal, an echoing back like a perfect palindrome. ORION suspects these loops are remnants of an ancient "Security Override Mechanism" known as Secure Loops — defensive circuits once used to reset and shield the city during invasions. To activate this hidden defense mechanism, ORION must locate at least one of