| author | Christian Urban <urbanc@in.tum.de> | 
| Thu, 07 Dec 2017 12:26:41 +0000 | |
| changeset 544 | 91926c861910 | 
| parent 409 | fb8ee3f58d19 | 
| permissions | -rw-r--r-- | 
| 
409
 
fb8ee3f58d19
added
 
Christian Urban <christian dot urban at kcl dot ac dot uk> 
parents:  
diff
changeset
 | 
1  | 
def collatz(n: BigInt) : Boolean = n match {
 | 
| 
 
fb8ee3f58d19
added
 
Christian Urban <christian dot urban at kcl dot ac dot uk> 
parents:  
diff
changeset
 | 
2  | 
case n if (n == 1) => true  | 
| 
 
fb8ee3f58d19
added
 
Christian Urban <christian dot urban at kcl dot ac dot uk> 
parents:  
diff
changeset
 | 
3  | 
case n if (n % 2 == 0) => collatz(n / 2)  | 
| 
 
fb8ee3f58d19
added
 
Christian Urban <christian dot urban at kcl dot ac dot uk> 
parents:  
diff
changeset
 | 
4  | 
case _ => collatz(3 * n + 1)  | 
| 
 
fb8ee3f58d19
added
 
Christian Urban <christian dot urban at kcl dot ac dot uk> 
parents:  
diff
changeset
 | 
5  | 
}  |