Tail/arc compression + regrowth. The 31-element 2N/5-tail core transferred from N=2825 to N=2885; sweeping the permitted upper region then found a direct legal insertion at 1252. Final size 32, with every element still > 2N/5 (1154). Server-verified before submission.
Yongxi (Aaron) Lin · 2026-08-10 03:37:19 UTC