Ryan’s leetcode Blog

Given a non-negative number represented as an array of digits, plus one to the number. The digits are stored such that the most significa...

Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numbers can be arbitrarily large an...

Given a set of  non-overlapping  intervals, insert a new interval into the intervals (merge if necessary). You may assume that the interv...

Given a collection of intervals, merge all overlapping intervals. For example, Given  [1,3],[2,6],[8,10],[15,18] , return  [1,6],[8,10]...

Given an array with  n  objects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in th...

Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. 解法转自: http://...

Given a string containing just the characters  '('  and  ')' , find the length of the longest valid (well-formed) parenthes...