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Nice work Kareha, you hit the learning goals here and got the Sudoku solution as well. Well done!
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| # Time Complexity: O(n) * O(mlogm) | ||
| # Space Complexity: O(n+m) = O(n) | ||
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| def grouped_anagrams(strings) |
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👍 We normally write the time complexity O(n + m log m)
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| # Time Complexity: O(nlogn) | ||
| # Space Complexity: O(n) | ||
| def top_k_frequent_elements(list, k) |
| return true | ||
| end | ||
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| def matrix_helper(matrix, i, j) |
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| # Time Complexity: O(n^2) - where n and n are rows and cols | ||
| # Space Complexity: O(n) - bc hash table created for every row/col separately | ||
| def valid_sudoku(table) |
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Hash Table Practice
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Comprehension Questions