背包问题
给定一组物品,每种物品都有自己的重量和价值,现有一个背包,能承受的重量有限,在受限制的重量下,去取若干物品使总价值最大。
给定一组物品,每种物品都有自己的重量和价值,现有一个背包,能承受的重量有限,在受限制的重量下,去取若干物品使总价值最大。
题目:
In order to improve their physical fitness, the cows have taken up gymnastics! Farmer John designates his favorite cow Bessie to coach the N other cows and to assess their progress as they learn various gymnastic skills.
In each of K practice sessions (1≤K≤10), Bessie ranks the N cows according to their performance (1≤N≤20). Afterward, she is curious about the consistency in these rankings. A pair of two distinct cows is consistent if one cow did better than the other one in every practice session.