L21_Set - What are Sets A new Data Structure that we learn...

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What are Sets A new Data Structure that we learn is called a set . S 7 8 5 10 1 A set can be thought as an unbound collection of distinct elements. Page 1 of 31
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What are Sets 7 8 7 8 5 10 1 A set can be thought as an unbound collection of distinct elements. Page 2 of 31
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What are Sets S 7 8 5 10 1 S = {1, 5, 7, 8, 10} S = {7, 5, 8, 1, 10} S = {10, 1, 8, 5, 7} S = {10, 5, 1, 8, 7} S = {8, 1, 10, 7, 5} Page 3 of 31
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Set Operation: union The union operation returns the results of merging two sets. 3 2 1 A 6 7 3 B 7 3 6 1 2 C =union( A , B ) Page 4 of 31
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Set Operation: union The union operation returns the results of merging two sets. 3 2 1 A 6 2 3 B ? C =union( A , B ) Page 5 of 31
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Set Operation: union The union operation returns the results of merging two sets. 3 2 1 A 1 2 3 B C =union( A , B ) ? Page 6 of 31
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Disjoint Sets Two sets are disjoint if they do not share any elements. 4 2 1 A 6 9 3 B The sets A and B are disjoint. Page 7 of 31
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Disjoint Sets Two sets are disjoint if they do not share any elements. 4 2 1 A 6 9 2 B The sets A and B are NOT disjoint. Page 8 of 31
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Disjoint Sets Are all these sets disjoint? 3 5 2 A 8 7 4 B C 8 6 D 9 1 YES / NO Page 9 of 31
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Disjoint Set Operation: Find 4 2 1 A 6 B C 5 7 D 8 9 3 A , B , C , D .find(8) = ___ Page 10 of 31
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Disjoint Set Operation: Find 4 2 1 A 6 B 8 C 5 7 D 8 9 3 A , B , C , D .find(8) = ___ Page 11 of 31
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This note was uploaded on 12/28/2010 for the course CSC CSC1110 taught by Professor Cjyuan during the Fall '06 term at CUHK.

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L21_Set - What are Sets A new Data Structure that we learn...

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