Sockets - Grace #22
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Sockets - Grace #22
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CheezItMan
reviewed
Oct 4, 2019
| else | ||
| min = [left, right].min_by {|x| @store[x].key} | ||
| end | ||
| swap(index, min) |
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This isn't quite working because you're not checking to see if the element at index is greater than the element at min.
if @store[index] > @store[min]
swap(index, min)
heap_down(min)
end| # Time Complexity: ? | ||
| # Space Complexity: ? | ||
| # Time Complexity: 0(n log n) | ||
| # Space Complexity: 0(1) | ||
| def heap_sort(list) |
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This is not working due to a bug in heap_down
| # Time Complexity: ? | ||
| # Space Complexity: ? | ||
| # Time Complexity: 0(log n) | ||
| # Space Complexity: 0(1) |
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Since heap_down is recursive you have to consider the impact of the recursion on space complexity.
| # Time Complexity: ? | ||
| # Space Complexity: ? | ||
| # Time Complexity: 0(log n) | ||
| # Space Complexity: 0(1) |
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Heaps Practice
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Comprehension Questions
heap_up&heap_downmethods useful? Why?