CustomCC0-1.0#ct-p1-031500
Deadline Compression Jobs
Summary
- •Phase 1 / greedy-sorting
- •Reasoning-first competitive programming drill
Problem Description
Each job has duration and deadline. Choose maximum number of jobs finished before their deadlines.
How to read this problem in plain language:
- This is a Phase 1 reasoning drill focused on greedy-sorting.
- Typical lenses to test first: greedy, sorting, heap.
- Constraints reminder: 1 <= n <= 2e5
Mini examples for mental simulation:
1) Boundary example: One job duration > deadline should be dropped immediately.
2) Adversarial example: Ordering ties must still preserve count.
Lite-mode writing target:
- Write 1~2 observations that shrink the search space.
- Name one final algorithm and state target complexity explicitly.
- Validate with at least 2 edge cases and one hand simulation.
Constraints
- •1 <= n <= 2e5
Analysis
Key Insight
Quantifying complexity against constraints is mandatory for selecting the final approach and rejecting brute force formally.
greedysortingheapexchange