1. Write and execute a program to input a series of lists, each of which contains a number of sentences. After inputting all the lists, the program should invoke functions shorten and printlist to work on each list. Shorten is to print each sentence of the list it is to deal with whose length exceeds 25, and delete such sentences from the list; printlist is to print the resultant list. You should write shorten by defining the functions of traverse so as to turn traverse into shorten. Use dynamic memory for record storage. Don't forget to echo print all input and annotate all output. Make up some fun sentences. Store one character in each list record, and, for simplicity, assume all sentences end with a period.
2. Modify your program (and run the new version) when three characters (instead of one) are stored per record. Hint: within a list, assume the first character of each sentence is stored in a new record rather than in the record containing the period of the previous sentence, even when it has the room.