Find Failed Login IPs
CodingPhone ScreenSoftware EngineerReported Nov, 2025
Examples
Example 1:
Input: logs = [["192.168.1.1","server-a","failed"],["192.168.1.1","server-b","failed"],["192.168.1.1","server-a","success"],["10.0.0.2","server-a","failed"],["10.0.0.2","server-a","failed"],["10.0.0.2","server-c","failed"]]
Output: ["10.0.0.2","192.168.1.1"]
Explanation:
Example 2:
Input: logs = [["10.0.0.1","server-a","failed"],["10.0.0.2","server-a","failed"]]
Output: ["10.0.0.1","10.0.0.2"]
Explanation:
Example 3:
Input: logs = [["192.168.1.1","server-a","success"]]
Output: []
Explanation: