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  1. class Main
  2. {
  3. 	public static void main (String[] args) throws java.lang.Exception
  4. 	{
  5. 		java.util.Scanner i = new java.util.Scanner(System.in);
  6. 		int n = i.nextInt();
  7. 		int m = i.nextInt();
  8. 	    if (m > n){
  9. 	    	int t = n;
  10. 	    	n = m;
  11. 	    	m = t;
  12. 	    }
  13. 	    long den = 1, ways = 1; // den - знаменатель, ways - количество способов.
  14. 	    for (int j = 0; j < m - 1; j++) {
  15. 	        ways *= n + j;
  16. 	        if (ways % den == 0) {
  17. 	            ways /= den;
  18. 	            den++;
  19. 	        }
  20. 	    }
  21. 	    System.out.println(ways);
  22. 	}
  23. }
Success #stdin #stdout 0.1s 35608KB
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stdout
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30067266499541040
https://ideone.com/DJchpK
java черепашка циклы
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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