USACO 2017 DECEMBER CONTEST, GOLD PROBLEM 1. A PIE FOR A PIE
USACO 2017年首轮月赛金级题1 A PIE FOR A PIE Bessie and Elsie have each baked N pies (1 ≤ N ≤ 105). Each of the 2N pies has a tastiness value according to Bessie and a (possibly different) tastiness...