4390. SSL Certificate Auto-Renewal Cron with ACME Challenge (Part 49)
Linux & BashCI/CD Pipelines
### Problem #4390: SSL Certificate Auto-Renewal Cron with ACME Challenge (Part 49)
**Domain:** `DevOps & Cloud` | **Topic Focus:** `Linux & Bash, CI/CD Pipelines`
Implement an optimized, production-grade solution for **SSL Certificate Auto-Renewal Cron with ACME Challenge (Part 49)**.
### Requirements:
1. Your code must handle boundary inputs, edge cases, and maintain optimal time & space complexity.
2. In production, this logic scales to high-throughput environments.
3. Return the exact computed result.
Example 1:
Input: Sample Input #4390
Output: Output 1
Explanation: Demonstrates correct execution for Linux & Bash in DevOps & Cloud.
Constraints:
- Time Complexity: Optimal for standard production loads.
- Space Complexity: O(1) auxiliary or O(N) linear storage.
- Ensure memory safety, clean error propagation, and zero race conditions.