9 lines
284 B
Text
9 lines
284 B
Text
fcn perfectShuffle(numCards){
|
|
deck,shuffle,n,N:=numCards.pump(List),deck,0,numCards/2;
|
|
do{ shuffle=shuffle[0,N].zip(shuffle[N,*]).flatten(); n+=1 }
|
|
while(deck!=shuffle);
|
|
n
|
|
}
|
|
foreach n in (T(8,24,52,100,1020,1024,10000)){
|
|
println("%5d : %d".fmt(n,perfectShuffle(n)));
|
|
}
|