Identify Failed Login Attempts and Sort by Frequency

Given a system log file, identify all failed login attempt IPs and their corresponding machines. Sort the attempts by the number of failures and output the result. Input A series of system logs, each line containing: Timestamp Machine name IP address Status (success or fail) Output A list of IP addresses sorted by the number of failed attempts. Each IP is associated with its machine name and the number of failed attempts. Ensure the processing efficiency, as the log file can be very large. Example Input 2025-11-19 12:45:00 machine-a 192.168.1.1 fail 2025-11-19 12:46:00 machine-b 192.168.1.2 success 2025-11-19 12:47:00 machine-a 192.168.1.1 fail 2025-11-19 12:48:00 machine-c 192.168.1.3 fail 2025-11-19 12:49:00 machine-b 192.168.1.2 fail 2025-11-19 12:50:00 machine-a 192.168.1.1 fail