00:00 - 1:14 Intro+ Problem 1 , question i
1:15 - 5:13 Problem 1 ,Question ii
5:14- 6:31 Problem 1 , Question iii
6:32 - 7:13 Problem 1 , Question iv
7:14 - 14:35 Problem 1 , Question v
14:36 - 17:38 Problem 2
17:39 - 21:40 Problem 3
21:41 - 23:08 Problem 4 , Question i
23:09 - 24:28 Problem 4, Question ii
24:29 - 25:30 Problem 4 ,Question iii
25:31 -28:40 Problem 4 ,Question iv
28:41 - 30:58 Problem 4 ,Question v
