Branches, Kristy #32
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Branches, Kristy #32
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CheezItMan
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Oct 9, 2019
CheezItMan
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CheezItMan
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Not bad, check out my comments and let me know if you have any questions.
| @@ -1,6 +1,28 @@ | |||
| # A method to reverse the words in a sentence, in place. | |||
| i += 1 | ||
| j -= 1 | ||
| end | ||
| my_sentence = reverse.join |
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See my lesson on how functions work This isn't changing the original argument.
| # Time complexity: ? | ||
| # Space complexity: ? | ||
| # Time complexity: O(n) | ||
| # Space complexity: O(1) |
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Since you're doing .scan you end up with O(n) because it's making a new array.
| # sorted by the length of the word. | ||
| # Time complexity: ? | ||
| # Space complexity: ? | ||
| # Time complexity: O(n) |
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This is O(n2). Check out your nested loops.
Comment on lines
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| while i < my_array.length | ||
| to_insert = my_array[i] | ||
| j = i | ||
|
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| while j > 0 && my_array[j-1].length > to_insert.length | ||
| my_array[j] = my_array[j-1] | ||
| j -= 1 | ||
| end | ||
| my_array[j] = to_insert | ||
| i += 1 | ||
| end |
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Sorting & Reverse Sentence