洛谷 P2902 [USACO08MAR]珍珠配对Pearl Pairing https://www.luogu.org/problem/P2902 JDOJ 2577: USACO 2008 Mar Gold 3.Pearl Pairing https://neooj.com:8082/oldoj/problem.php?id=2577 Description At Bessie's recent birthday party, she received N (2 <= N <= 100,0…
Your Ride Is Here It is a well-known fact that behind every good comet is a UFO. These UFOs often come to collect loyal supporters from here on Earth. Unfortunately, they only have room to pick up one group of followers on each trip. They do, however…