fig radix sort step fig radix sort step -- rd letter fig radix sort step and they all go back to the mainqueue as shown in fig no change from step in this case finallywe look at the first letter in each string and the sort is almost complete as shown in fig bringing all the strings back to the mainqueue results in the mainqueue containing all the strings in sorted order the mainqueue can be emptied at this point and the strings can be processed in sorted order as depicted in fig this copy belongs to 'acha