"It is really, really hard," he said.
В России ответили на имитирующие высадку на Украине учения НАТО18:04
。业内人士推荐51吃瓜作为进阶阅读
“扶持经济发展，帮助群众富裕起来，是好事、实事；弘扬社会正气，打击害群之马，丰富群众业余生活，创造良好社会环境，文明、和睦、和谐、安定，也是实事、好事。解决群众衣食住行之苦，生老病死之需，是实事、好事；甚至远处僻土深山的群众买不到灯泡、肥皂这类针头线脑的小事，得到我们的关心、解决，也是实事、好事。”
The Algorithm: Ford-Fulkerson to Find the Bottlenecks
This is the same idea behind binary search. In a sorted array, you compare against the middle element and eliminate half the remaining candidates. In a quadtree, you choose one of four quadrants and ignore the other three regions. Each level narrows the search space by a factor of four instead of two.