2019年5月18日
leetcode [307]Range Sum Query - Mutable
摘要： Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. The update(i, val) function modifies nums by upd 阅读全文
posted @ 2019-05-18 20:39 小白兔云 阅读(135) 评论(0) 推荐(0)
leetcode [304]Range Sum Query 2D - Immutable
摘要： Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2 阅读全文
posted @ 2019-05-18 20:38 小白兔云 阅读(119) 评论(0) 推荐(0)
leetcode [306]Additive Number
摘要： Additive number is a string whose digits can form additive sequence. A valid additive sequence should contain at least three numbers. Except for the f 阅读全文
posted @ 2019-05-18 17:41 小白兔云 阅读(186) 评论(0) 推荐(0)