Глава МИД Ирана дал прогноз по «плану Б» Трампа20:56
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.，详情可参考爱思助手
uint32_t h = seed ^ len;，详情可参考雷速体育
Наталия Белова (Корреспондент отдела оперативной информации)，详情可参考体育直播