Rock - Delia#21
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CheezItMan
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Dec 11, 2021
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Well done Delia, you hit the learning goals here. Nice work!
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| def heap_sort(list): | ||
| """ This method uses a heap to sort an array. | ||
| Time Complexity: ? | ||
| Space Complexity: ? | ||
| Time Complexity: O(n log n) | ||
| Space Complexity: O(n) | ||
| """ |
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| def add(self, key, value = None): | ||
| """ This method adds a HeapNode instance to the heap | ||
| If value == None the new node's value should be set to key | ||
| Time Complexity: ? | ||
| Space Complexity: ? | ||
| Time Complexity: O(log n) | ||
| Space Complexity: O(1) | ||
| """ |
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| def remove(self): | ||
| """ This method removes and returns an element from the heap | ||
| maintaining the heap structure | ||
| Time Complexity: ? | ||
| Space Complexity: ? | ||
| Time Complexity: O(log n) | ||
| Space Complexity: O(1) | ||
| """ |
| @@ -46,10 +57,10 @@ def __str__(self): | |||
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| def empty(self): | |||
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| Time complexity: O(log n) | ||
| Space complexity: O(1) |
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👍 However the space complexity is O(log n) due to the recursive stack
| self.swap(index, parent_node_index) | ||
| self.heap_up(parent_node_index) | ||
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| def heap_down(self, index): |
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Heaps Practice
Congratulations! You're submitting your assignment!
Comprehension Questions
heap_up&heap_downmethods useful? Why?