Pergunta de entrevista da empresa Sixt

arr = [c,c,b,d,d,a,a,c,b,b,b,c,d,a] Given an array of characters, find the min length sub array within this array which has all the unique elements present in the array. unique = [c,b,d,a] worst = [c,a,a,a,a,d,d,d,b] //in this case the complete array becomes the min lenght sub array.. Write a function which accepts the char array and prints i,j of the sub array