The complexity of determining the minimum number of flips that transform one triangulation of a convex point set into another remained a tantalizing open question for many decades. We settle this question by proving that computing shortest flip sequences between triangulations of convex polygons, and therefore also computing the rotation distance of binary trees, is NP-hard.
Spring Statement 2026: Key points at a glance。PDF资料是该领域的重要参考
，这一点在纸飞机下载中也有详细论述
_backgroundJobService = backgroundJobService;，详情可参考体育直播
10 additional monthly gift articles to share