原创 LeetCode-Detect_Capital

題目:Given a word, you need to judge whether the usage of capitals in it is right or not.We define the usage of capitals

原创 LeetCode-Array_Partition_I

題目:Given an array of 2n integers, your task is to group these integers into n pairs of integer, say (a1, b1), (a2, b2),

原创 LeetCode-Relative_Ranks

題目:Given scores of N athletes, find their relative ranks and the people with the top three highest scores, who will be

原创 LeetCode-Keyboard_Row

題目:Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American ke

原创 LeetCode-Find_Mode_in_Binary_Search_Tree

題目:Given a binary search tree (BST) with duplicates, find all the mode(s) (the most frequently occurred element) in the

原创 LeetCode-Base_7

題目:Given an integer, return its base 7 string representation.Example 1:Input: 100 Output: "202" Example 2:Input: -7 Out