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intermediate · order 141

LIS two ways

dp-lis-01Related book chapters: 22 (optional — this page is complete on its own)LIS

Slug: dp-lis-01 · Paired reading: Chapter 22

Prompt

Implement both:

  • fn lis_n2(nums: &[i32]) -> usize — classic O(n²) DP length
  • fn lis_nlogn(nums: &[i32]) -> usize — patience sorting / partition_point tails