R, 55(削除) 55 (削除ここまで) 54 bytes
Edit: -1 byte thanks to pajonk
function(x)max(lengths(apply(expand.grid(x),1,uniquetable)))
Test setup stolen from pajonk's R answer.
48 bytes using R ≥ 4.1 by exchanging function for \.
R, 55 bytes
function(x)max(lengths(apply(expand.grid(x),1,unique)))
Test setup stolen from pajonk's R answer.
48 bytes using R ≥ 4.1 by exchanging function for \.
R, (削除) 55 (削除ここまで) 54 bytes
Edit: -1 byte thanks to pajonk
function(x)max(lengths(apply(expand.grid(x),1,table)))
Test setup stolen from pajonk's R answer.
48 bytes using R ≥ 4.1 by exchanging function for \.
R, 55 bytes
function(x)max(lengths(apply(expand.grid(x),1,unique)))
Test setup stolen from pajonk's R answer.
48 bytes using R ≥ 4.1 by exchanging function for \.