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  1.  
  2. import java.io.*;
  3. import java.util.*;
  4.  
  5. public class HowManyNumbers {
  6.  
  7. 	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  8. 	static PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out));
  9. 	static StringTokenizer st = new StringTokenizer("");
  10.  
  11. 	public static String next() {
  12. 		try	{
  13. 		while (!st.hasMoreTokens()) {
  14. 			String s = br.readLine();
  15. 			if (s == null)
  16. 				return null;
  17. 			st = new StringTokenizer(s);
  18. 		}
  19. 		return st.nextToken();
  20. 		}	catch(Exception e)	{
  21. 			return	null;
  22. 		}
  23. 	}
  24. 	public static void main(String[] asda) throws Exception {
  25. 		while	(true)	{
  26. 			int evens = Integer.parseInt( next() );
  27. 			int odds = Integer.parseInt( next() );
  28.  
  29. 			if (evens == 0 && odds == 0) {
  30. 				break;
  31. 			}
  32.  
  33. 			out.println( solve(1, evens, odds) );
  34. 		}
  35.         //
  36.         out.flush();
  37.         System.exit(0);
  38.     }
  39.  
  40.     static long solve(int first, int evens, int odds)	{
  41.     	if (evens == 0 && odds == 0) {
  42.     		return	2;
  43.     	}
  44.     	long ans = 0;
  45.     	if (evens != 0) {
  46.     		ans = (5L - first) * solve(0, evens - 1, odds);
  47.     	}
  48.     	if (odds != 0) {
  49.     		ans += 5L * solve(0, evens, odds - 1);
  50.     	}
  51.  
  52.     	if (first == 1 && evens == 1 && odds == 0) {
  53.     		ans++;
  54.     	}
  55.     	return	ans;
  56.     }
  57.  
  58. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:5: error: class HowManyNumbers is public, should be declared in a file named HowManyNumbers.java
public class HowManyNumbers {
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/L0ZdfM
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
secret

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