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LeetCode : ZigZag Conversion 题目: LeetCode: [6. ZigZag Conversion][1] 描述: The string "PAYPALISHIRING" is written in a zigzag pattern on a given number 阅读全文
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题目: LeetCode:[1. Add Two Numbers][1] 描述: Given an array of integers, return indices of the two numbers such that they add up to a specific target. You 阅读全文
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题目: LeetCode:[2. Add Two Numbers][1] 描述: You are given two non empty linked lists representing two non negative integers. The digits are stored in rev 阅读全文
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LeetCode:36. Valid Sudoku,数独是否有效 : 题目: LeetCode: [36. Valid Sudoku ][1] 描述: Determine if a Sudoku is valid, according to: [Sudoku Puzzles][4] The Rule 阅读全文
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LeetCode:60. Permutation Sequence,n全排列的第k个子列 : 题目: LeetCode: [ 60. Permutation Sequence][1] 描述: The set [1,2,3,…,n] contains a total of n! unique perm 阅读全文