Started to do test01 task01.
Add test01 task01.
Add task02 test01 template.
Add check_valid_word function task02 test01.
Add lab06 draft.
Add lab6 task1, task2.
Add lab06 task4.
Add lab06 task4.
Finish lab06 task4.
Set up lab06, task4 (task4.1).
Add print_word_array lab6 task4.
Implement swap lab06 task04.
Replace swap with compare and swap lab06 task4.
Finish lab06 task4.
Add lab08.
Delete useless files in root.