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40. Combination Sum II Given a collection of candidate numbers (candidates) and a target number (target), find all unique combinations in candidates w 阅读全文
posted @ 2019-02-21 22:02
mingL
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39. Combination Sum Given a set of candidate numbers (candidates) (without duplicates) and a target number (target), find all unique combinations in c 阅读全文
posted @ 2019-02-21 21:49
mingL
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38. Count and Say The count-and-say sequence is the sequence of integers with the first five terms as following: 1 is read off as "one 1" or 11.11 is 阅读全文
posted @ 2019-02-21 21:14
mingL
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37. Sudoku Solver Write a program to solve a Sudoku puzzle by filling the empty cells. A sudoku solution must satisfy all of the following rules: Empt 阅读全文
posted @ 2019-02-21 21:05
mingL
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36. Valid Sudoku Determine if a 9x9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: A partially fi 阅读全文
posted @ 2019-02-21 20:58
mingL
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