USACO 2015 January Contest, Silver Problem 2. Cow Routing
原题下载 USACO2015JAN-S2 答案 #include <iostream> #include <vector> #include <cstring> #include <cstdio> using namespace std; #define MAXV 1010 bool vis[MAXV]; pair<long ...
USACO 2015 January Contest, Bronze Problem 4. Meeting Time
原题下载 USACO2015JAN-B4 答案 (Analysis by Nick Wu) For each of Bessie and Elsie, we will simply try all possible paths that they can take to get from field 1 to field N. Because there are only at ...
USACO 2015 January Contest, Bronze Problem 3. It's All About the Base
原题下载 USACO2015JAN-B3 答案 (Analysis by Mark Gordon) This problem gives us two three digit strings and asks us to determine the bases X and Y such that those strings evaluate to the same integer...
USACO 2015 January Contest, Bronze Problem 2. Cow Routing II
原题下载 USACO2015JAN-B2 答案 (Analysis by Mark Gordon) This problem is a harder version of the Cow Routing problem that appeared earlier in the bronze contest. In this problem Bessie may use up to...
USACO 2015 January Contest, Bronze Problem 1. Cow Routing
原题下载 USACO2015JAN-B1 答案 (Analysis by Mark Gordon) This problem asks us to find the minimum cost route that allows us to fly from city A to city B. This is a relatively straightforward problem...
USACO 2014 December Contest, Bronze Problem 4. Learning by Example
原题下载 USACO2014DEC-B4 答案: (Analysis by Jonathan Paulson - jonathanpaulson@gmail.com) The main difficulty here is that A and B are so large we cannot consider each new cow separately. We have t...
USACO 2014 December Contest, Silver Problem 2. Marathon
原题下载 USACO2014-DEC-S2 答案 (Analysis by Nick Wu) Let's define f(n,k)f(n,k) to be the smallest distance needed to end up at point nn having skipped exactly kk points. Given that we are at a spec...
USACO 2014 December Contest, Gold Problem 3. Cow Jog
原题下载 USACO2014-DEC-G3 答案 (Analysis by Mark Gordon) Two cows must be in different lanes if one cow overtakes the other at some point (or at the very end) in the jog. Viewed this way we can gre...
USACO 2014 December Contest, Gold Problem 2. Marathon
原题下载 USACO2014-DEC-G2 答案 (Analysis by Allen Chen) Seeing that we have to update point coordinates and query the minimum travel time for a sub-route, we immediately see that this problem invol...
