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allhands/spring2025/weekfifteen/teamone/index.qmd

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@@ -636,36 +636,36 @@ The result of the worst case time complexities are as follow:
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| Implementation | Insert | Lookup | Delete | Verify Deletion |
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| -------------- | -------- |--------: | -------: | ----------------: |
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| List | 0(1)avg | 0(n) | 0(n) | 0(n) |
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| Set | 0(1)avg | 0(1)avg | 0(1)avg | 0(1)avg |
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| List | 0(n) | 0(n^2) | 0(n^2) | 0(n^2) |
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| Set | 0(n) | 0(n) | 0(n) | 0(n) |
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: Worst case time complexities for all operations and implementations studied in this experiment. {.responsive}
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## Insert
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- Set remains at constant 0(1).
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- List is also constant 0(1) as it is appending at the end.
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- Even though both are at 0(1), List is comparatively a lot faster than set at pure appending hence it is faster than set.
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- Set remains at 0(n).
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- List is also 0(n) as it is appending at the end.
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- Even though both are at 0(n), List is comparatively a lot faster than set at pure appending hence it is faster than set.
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## Lookup
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- Set remains at constant 0(1)
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- List provide worst case time complexity of 0(n) when doubling the list size.
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- Set remains at 0(n)
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- List provide time complexity of 0(n^2) when doubling the list size.
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- Set is faster constantly for the both small and large data sizes compared to list.
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## Delete
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- Set remains at constant 0(1).
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- List provide worst case time complexity of 0(n).
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- Set remains at 0(n).
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- List provides time complexity of 0(n^2).
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- For the smaller data both are almost similar for the deletion but as the data increases the list falls behind due to the shifting.
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## Verify Deletion
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- Set remains at constant 0(1).
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- List provide worst case time complexity of 0(n).
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- Set remains at 0(n).
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- List provide time complexity of 0(n^2).
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- Set is faster constantly for the both small and large data sizes compared to list.
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## Conclusion
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Set is demonstrably faster than list because it uses a hash table while lists use dynamic arrays. Other than append(insert)
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which amortize 0(1) due to python geometrically growing capacity, List must look at every element or need to shift for other
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operations which results in 0(n).
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which is 0(n) due to python geometrically growing capacity, List must look at every element or need to shift for other
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operations which results in 0(n^2).
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- If you need fast, random insert, delete and lookup of vertices or edges use **Set**.
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- If you truly just need to build up nodes or neighbors and then walk them sequentially use **List**.
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