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  1. function fac (n) {
  2.     var result = 1;
  3.     for (var i = 2; i <= n; i++) {
  4.         result *= i;
  5.     }
  6.     return result;
  7. }
  8.  
  9. function keno(a, n, m, k) {
  10.     var numer = fac(a) * fac(m) * fac(n-a) * fac(n-m);
  11.     var denom = fac(n) * fac(k) * fac(a-k) * fac(m-k) * fac(n-a-m+k);
  12.     return numer / denom;
  13. }
  14.  
  15. print(fac(2));
  16. print(fac(5));
  17. print(fac(10));
  18. print(keno (20, 80, 10, 5));
Success #stdin #stdout 0.01s 4984KB
comments (?)
stdin 


			

					
			
			

				
	
		
		
	
		
		 stdout
			
	

		
2
120
3628800
0.05142768770500134


	

		
	 
	
	
			

					
			
			
			
			
			
			
			
			

			
			
			
		

	
		
		

			


			                        
			
			

				

	
					
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language:

						
JavaScript (SMonkey 60.2.3)

					

					

						
created:
								
						
13 years ago

					

					

						
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