makedata.java

要参加ACM比赛的同学一定要看

import java.io.*;
import java.util.*;

import static java.lang.Math.*;
import static java.lang.System.*;

public class Main{
	
	public static void main(String[] args){
		int n=900;
		int m=900;
		out.print(n);
		out.print(' ');
		
		Random rand = new Random();
		
		for(int i=0; i<2*n; ++i){
			out.printf("%2.1f", rand.nextFloat()*40*(rand.nextBoolean()?-1:1));
			out.print(' ');
		}
		out.println();
		out.print(m);
		out.println(' ');
		
		for(int i=0; i<m; ++i){
			ArrayList<Character> list = new ArrayList<Character>();
			list.add('S');
			list.add('A');
			list.add('L');
			list.add('R');
			
			for(int j=0; j<4; ++j){
				char v = list.remove(rand.nextInt(list.size()));
				out.print(v);
			}
			out.print(' ');
			for(int j=0; j<4; ++j){
				out.printf("%2.1f", rand.nextFloat()*10*(rand.nextBoolean()?-1:1));
				out.print(' ');
			}
			
			switch(rand.nextInt(3)){
				case 0:
					out.print('N');
					break;
				case 1:
					out.print('X');
					break;
				case 2:
					out.print('Y');
					break;
			}
			
			out.println();
		}
	}
	
}