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Update READMEs.
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README.md
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README.md
@ -215,28 +215,28 @@ Below is the list of some of the most used Big O notations and their performance
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### Data Structure Operations Complexity
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| Data Structure | Access | Search | Insertion | Deletion | Comments |
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| ----------------------- | :-------: | :-------: | :-------: | :-------: | :-------- |
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| **Array** | 1 | n | n | n | |
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| **Stack** | n | n | 1 | 1 | |
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| **Queue** | n | n | 1 | 1 | |
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| **Linked List** | n | n | 1 | 1 | |
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| **Hash Table** | - | n | n | n | In case of perfect hash function costs would be O(1) |
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| **Binary Search Tree** | n | n | n | n | In case of balanced tree costs would be O(log(n)) |
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| **B-Tree** | log(n) | log(n) | log(n) | log(n) | |
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| **Red-Black Tree** | log(n) | log(n) | log(n) | log(n) | |
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| **AVL Tree** | log(n) | log(n) | log(n) | log(n) | |
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| Data Structure | Access | Search | Insertion | Deletion | Comments |
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| ----------------------- | :---------: | :---------: | :---------: | :---------: | :-------- |
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| **Array** | `1` | `n` | `n` | `n` | |
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| **Stack** | `n` | `n` | `1` | `1` | |
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| **Queue** | `n` | `n` | `1` | `1` | |
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| **Linked List** | `n` | `n` | `1` | `1` | |
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| **Hash Table** | - | `n` | `n` | `n` | In case of perfect hash function costs would be `O(1)` |
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| **Binary Search Tree** | `n` | `n` | `n` | `n` | In case of balanced tree costs would be `O(log(n))` |
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| **B-Tree** | `log(n)` | `log(n)` | `log(n)` | `log(n)` | |
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| **Red-Black Tree** | `log(n)` | `log(n)` | `log(n)` | `log(n)` | |
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| **AVL Tree** | `log(n)` | `log(n)` | `log(n)` | `log(n)` | |
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### Array Sorting Algorithms Complexity
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| Name | Best | Average | Worst | Memory | Stable | Comments |
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| --------------------- | :-------: | :-------: | :-----------: | :-------: | :-------: | :-------- |
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| **Bubble sort** | n | n^2 | n^2 | 1 | Yes | |
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| **Insertion sort** | n | n^2 | n^2 | 1 | Yes | |
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| **Selection sort** | n^2 | n^2 | n^2 | 1 | No | |
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| **Heap sort** | n log(n) | n log(n) | n log(n) | 1 | No | |
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| **Merge sort** | n log(n) | n log(n) | n log(n) | n | Yes | |
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| **Quick sort** | n log(n) | n log(n) | n^2 | log(n) | No | |
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| **Shell sort** | n log(n) | depends on gap sequence | n (log(n))^2 | 1 | No | |
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| **Counting sort** | n + r | n + r | n + r | n + r | Yes | r - biggest number in array |
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| **Radix sort** | n * k | n * k | n * k | n + k | Yes | k - length of longest key |
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| Name | Best | Average | Worst | Memory | Stable | Comments |
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| --------------------- | :---------: | :---------: | :-------------: | :---------: | :-------: | :-------- |
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| **Bubble sort** | `n` | `n^2` | `n^2` | `1` | Yes | |
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| **Insertion sort** | `n ` | `n^2` | `n^2` | `1` | Yes | |
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| **Selection sort** | `n^2` | `n^2` | `n^2` | `1` | No | |
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| **Heap sort** | `n log(n)` | `n log(n)` | `n log(n)` | `1` | No | |
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| **Merge sort** | `n log(n)` | `n log(n)` | `n log(n)` | `n` | Yes | |
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| **Quick sort** | `n log(n)` | `n log(n)` | `n^2` | `log(n)` | No | |
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| **Shell sort** | `n log(n)` | depends on gap sequence | `n (log(n))^2` | `1` | No | |
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| **Counting sort** | `n + r` | `n + r` | `n + r` | `n + r` | Yes | `r` - biggest number in array |
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| **Radix sort** | `n * k` | `n * k` | `n * k` | `n + k` | Yes | `k` - length of longest key |
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@ -11,9 +11,15 @@ are needed, which indicates that the list is sorted.
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## Complexity
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###### time: worst _O_(_n_<sup>2</sup>), best _O_(_n_), average _O_(_n_<sup>2</sup>)
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Time
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###### space: worst _O_(1) auxiliary
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- worst _O_(_n_<sup>2</sup>),
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- best _O_(_n_),
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- average _O_(_n_<sup>2</sup>)
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Space
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worst _O_(1) auxiliary
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## References
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