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171. Excel Sheet Column Number https://leetcode.com/problems/excel-sheet...
242. Valid Anagram https://leetcode.com/problems/valid-anagram/descripti...
描述 Given a string representing one Unicode character, return an integer ...
409. Longest Palindrome https://leetcode.com/problems/longest-palindrome...
125. Valid Palindrome https://leetcode.com/problems/valid-palindrome/des...
描述 Python isalnum() 方法檢測字符串是否由字母和數字組成。 語法 isalnum()方法語法： 返回值 如果 string 至...
51. N-Queens https://leetcode.com/problems/n-queens/description/ 該類題目主要思...
651. Binary Tree Vertical Order Traversal https://www.lintcode.com/probl...
Python中除法有兩種運算符：’/’和’//’. X / Y類型：在Python2.6或者之前，這個操作對于整數運算會省去小數部分，而對于浮點...