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1 Depth First Search 0 1 2 3 4 dfs(0, 0) 01234 open site blocked site reachable from top via open sites.

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Presentation on theme: "1 Depth First Search 0 1 2 3 4 dfs(0, 0) 01234 open site blocked site reachable from top via open sites."— Presentation transcript:

1 1 Depth First Search dfs(0, 0) open site blocked site reachable from top via open sites

2 2 Depth First Search dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) flow() dfs(0, 0) open site blocked site reachable from top via open sites

3 3 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) open site blocked site reachable from top via open sites

4 4 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) open site blocked site reachable from top via open sites

5 5 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) mark down right left up dfs(1, 0) open site blocked site reachable from top via open sites

6 6 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) mark down right left up dfs(1, 0) open site blocked site reachable from top via open sites

7 7 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) mark down right left up dfs(1, 0) open site blocked site reachable from top via open sites

8 8 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) mark down right left up dfs(1, 0) open site blocked site reachable from top via open sites

9 9 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) mark down right left up dfs(1, 0) open site blocked site reachable from top via open sites

10 10 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) open site blocked site reachable from top via open sites

11 11 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) open site blocked site reachable from top via open sites

12 12 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 0) open site blocked site reachable from top via open sites

13 13 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) open site blocked site reachable from top via open sites

14 14 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) open site blocked site reachable from top via open sites

15 15 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) open site blocked site reachable from top via open sites

16 16 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) open site blocked site reachable from top via open sites

17 17 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) open site blocked site reachable from top via open sites

18 18 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) open site blocked site reachable from top via open sites

19 19 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) open site blocked site reachable from top via open sites

20 20 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) open site blocked site reachable from top via open sites

21 21 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(3, 2) open site blocked site reachable from top via open sites

22 22 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(3, 2) open site blocked site reachable from top via open sites

23 23 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(3, 2) open site blocked site reachable from top via open sites

24 24 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(3, 2) open site blocked site reachable from top via open sites

25 25 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(3, 2) open site blocked site reachable from top via open sites

26 26 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) open site blocked site reachable from top via open sites

27 27 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) open site blocked site reachable from top via open sites

28 28 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(2, 1) open site blocked site reachable from top via open sites

29 29 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(2, 1) open site blocked site reachable from top via open sites

30 30 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(2, 1) open site blocked site reachable from top via open sites

31 31 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(2, 1) open site blocked site reachable from top via open sites

32 32 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) mark down right left up dfs(2, 1) open site blocked site reachable from top via open sites

33 33 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(2, 2) open site blocked site reachable from top via open sites

34 34 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) open site blocked site reachable from top via open sites

35 35 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) open site blocked site reachable from top via open sites

36 36 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) open site blocked site reachable from top via open sites

37 37 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) open site blocked site reachable from top via open sites

38 38 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) open site blocked site reachable from top via open sites

39 39 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) open site blocked site reachable from top via open sites

40 40 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) open site blocked site reachable from top via open sites

41 41 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) open site blocked site reachable from top via open sites

42 42 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) open site blocked site reachable from top via open sites

43 43 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) open site blocked site reachable from top via open sites

44 44 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) mark down right left up dfs(4, 4) open site blocked site reachable from top via open sites

45 45 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) mark down right left up dfs(4, 4) open site blocked site reachable from top via open sites

46 46 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) mark down right left up dfs(4, 4) open site blocked site reachable from top via open sites

47 47 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) mark down right left up dfs(4, 4) open site blocked site reachable from top via open sites

48 48 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) mark down right left up dfs(4, 4) open site blocked site reachable from top via open sites

49 49 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) open site blocked site reachable from top via open sites

50 50 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) open site blocked site reachable from top via open sites

51 51 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) mark down right left up dfs(3, 4) open site blocked site reachable from top via open sites

52 52 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) open site blocked site reachable from top via open sites

53 53 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) open site blocked site reachable from top via open sites

54 54 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) mark down right left up dfs(2, 4) open site blocked site reachable from top via open sites

55 55 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) open site blocked site reachable from top via open sites

56 56 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) open site blocked site reachable from top via open sites

57 57 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) mark down right left up dfs(1, 4) open site blocked site reachable from top via open sites

58 58 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) open site blocked site reachable from top via open sites

59 59 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) mark down right left up dfs(1, 3) open site blocked site reachable from top via open sites

60 60 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) open site blocked site reachable from top via open sites

61 61 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) mark down right left up dfs(1, 2) open site blocked site reachable from top via open sites

62 62 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) open site blocked site reachable from top via open sites

63 63 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) open site blocked site reachable from top via open sites

64 64 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) mark down right left up dfs(0, 2) open site blocked site reachable from top via open sites

65 65 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) open site blocked site reachable from top via open sites

66 66 dfs(0, 0) dfs(0, 1) dfs(0, 2) dfs(0, 3) dfs(0, 4) Depth First Search flow() dfs(0, 0) open site blocked site reachable from top via open sites

67 67 Depth First Search flow() dfs(0, 0) open site blocked site reachable from top via open sites


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