原题下载 USACO2015-DEC-G2 答案 (Analysis by Nathan Pinsker) This is a standard knapsack problem with a bit of a twist. After Bessie drinks water once, her fullness value will decrease, but she won'...
原题下载 USACO2015-DEC-P1 答案 (Analysis by Nick Wu) In this problem, we're given a set of paths on a tree and want to compute the maximum number of paths some node in the tree is on. The naive sol...
原题下载 USACO2015-DEC-G1 答案 (Analysis by Nathan Pinsker) This problem seems daunting at first, but a few insights can give way to a greedy strategy for solving it: - You're free to mentally rear...
原题下载 USACO2015-DEC-S3 答案 (Analysis by Nick Wu) In this problem, we have a list of N integers, each either being 1, 2, or 3. For a list of certain intervals, we want to count how many numbers ...
原题下载 USACO2015-DEC-S2 答案 (Analysis by Nick Wu) In this problem, Bessie and Elsie each have NN unique integers ranging from 1 to 2N2N. Over NN rounds, Bessie and Elsie will each select a diffe...
原题下载 USACO2015-DEC-B3 答案 (Analysis by Nick Wu) In this problem we're given a list of the types of milk that each guest drank, when they drank each type, and when/if they got sick. Using this ...
原题下载 USACO2015-DEC-B1 答案 (Analysis by Nick Wu) In this problem, we have a fence and two sections of the fence have been painted. We need to determine how much of the fence has been painted. W...
原题下载 USACO2016-JAN-G1 答案 (Analysis by Brian Dean) One approach for solving this problem is by combining a left-to-right scan with a right-to-left scan (one could call each scan either greedy ...
原题下载 USACO2016-JAN-S2 答案 (Analysis by Nick Wu) In this problem, we have a list of numbers. We want to find a sublist of numbers where the sum of the numbers is divisible by 7. Define a prefix...
