USACO 2015 US Open, Bronze Problem 1. Moocryption
原题下载 USACO2015OPEN-B1 答案 (Analysis by Nick Wu) There are too many substitution ciphers for us to check every single one and see which one gives the maximum number of MOOs. However, if we only...
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USACO 2015 February Contest, Gold Problem 3. Fencing the Herd
原题下载 USACO2015FEB-G3 答案 (Analysis by Richard Peng) This problem is a dynamic (insertion of points) version of "a highway and seven dwarfs" from CEOI 2002. It asks to support a point set (the ...
USACO 2015 February Contest, Gold Problem 2. Censoring (Gold)
原题下载 USACO2015FEB-G2 答案 (Analysis by Mark Gordon) This problem asks us to repeatedly delete the first occurrence of any string TiTi from a larger string S until no string Ti appears in S. Unf...
USACO 2015 February Contest, Gold Problem 1. Cow Hopscotch (Gold)
原题下载 USACO2015FEB-G1 答案 import java.io.*; import java.util.*; public class barnGold { static char[][] grid; public static void main(String[] args) throws IOException { BufferedReader br = new...
USACO 2015 February Contest, Silver Problem 3. Superbull
原题下载 USACO2015FEB-S3 答案 #include <iostream> #include <vector> #include <cstdio> using namespace std; int main() { freopen("superbull.in", "r", stdin); freopen("superbull.out...
USACO 2015 February Contest, Silver Problem 2. Cow Hopscotch (Silver)
原题下载 USACO2015FEB-S2 答案 import java.io.*; import java.util.*; public class barnjump { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new Fi...
USACO 2015 February Contest, Silver Problem 1. Censoring (Silver)
原题下载 USACO2015FEB-S1 答案 (Analysis by Mark Gordon) This problem asks us to repeatedly delete the first occurrence of the string T from a larger string S until T no longer appears in S. The lit...
USACO 2015 February Contest, Bronze Problem 3. Cow Hopscotch (Bronze)
原题下载 USACO2015FEB-B3 答案 import java.io.*; import java.util.*; public class barnjump { static char[][] grid; public static void main(String[] args) throws IOException { BufferedReader br = new...
USACO 2015 February Contest, Bronze Problem 2. COW
原题下载 USACO2015FEB-B2 答案 #include <iostream> #include <vector> using namespace std; int main() { freopen("cow.in", "r", stdin); freopen("cow.out", "w", stdout); int N; string S; ci...
USACO 2015 February Contest, Bronze Problem 1. Censoring (Bronze)
原题下载 USACO2015FEB-B1 答案 (Analysis by Mark Gordon) This problem asks us to repeatedly delete the first occurrence of the string T from a larger string S until T no longer appears in S. The lit...
USACO 2015 January Contest, Gold Problem 1. Cow Rectangles
原题下载 USACO2015JAN-G1 答案 (Analysis by Nick Wu and Brian Dean) The critical observation for this problem is that an optimal rectangle must have a Holstein on each of its four sides. This motiva...
USACO 2015 January Contest, Gold Problem 3. Grass Cownoisseur
原题下载 USACO2015JAN-G3 答案 (Analysis by Mark Gordon) This problem asks us to find the largest cycle in a directed graph going through node 1 where one of the edges may be traversed backwards. Su...
