原题下载 USACO2017-FEB-G1 答案: #include <iostream> #include <vector> #include <queue> using namespace std; int dr[] = {0, 1, 2, 3, 2, 1, 0, -1, -2, -3, -2, -1, -1, 1, 0, 0}; int ...
原题下载 USACO2017-FEB-P3 答案: import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWriter; import java.io.Buffered...
原题下载 USACO2017-FEB-P2 答案: import java.io.*; import java.util.*; public class nocross { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new F...
原题下载 USACO2017-FEB-P1 答案: #include <iostream> #include <iomanip> #include <stdio.h> #include <set> #include <vector> #include <map> #include <cmath> ...
原题下载 USACO2017-OPEN-B3 答案: #include <iostream> #include <fstream> #include <cmath> using namespace std; #define MAX_N 10 int N, B[MAX_N][MAX_N]; bool color_appears(int c) { ...
原题下载 USACO2017-OPEN-B2 答案: #include <iostream> #include <fstream> #include <cmath> using namespace std; int N, M; string spotty[100], plain[100]; bool test_location(int j) {...
原题下载 USACO2017-OPEN-B1 答案: #include <iostream> #include <cstdlib> using namespace std; typedef long long ll; int main() { ll x, y; cin >> x >> y; ll ans = 0; ll by = 1...
原题下载 USACO2017-OPEN-S3 答案: #include <iostream> #include <fstream> #include <cmath> #include <vector> using namespace std; int N; string img[20]; struct PCL { int i1,j1...
原题下载： USACO2016-OPEN-P3 答案： (Analysis by Brian Dean) Letting K=10K=10 be the maximum amount of dirt in any cell, we can ultimately solve this problem using dynamic programming in O(NK)O(NK)...
