Idiot-maker

摘要： https://leetcode.com/problems/subsets-ii/Given a collection of integers that might contain duplicates,S, return all possible subsets.Note:Elements in ... 阅读全文

摘要： https://leetcode.com/problems/subsets/Given a set of distinct integers,S, return all possible subsets.Note:Elements in a subset must be in non-descend... 阅读全文

摘要： https://leetcode.com/problems/length-of-last-word/Given a stringsconsists of upper/lower-case alphabets and empty space characters' ', return the leng... 阅读全文

摘要： https://leetcode.com/problems/longest-consecutive-sequence/ Given an unsorted array of integers, find the length of the longest consecutive elements s 阅读全文

摘要： https://leetcode.com/problems/sum-root-to-leaf-numbers/Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a num... 阅读全文

摘要： https://leetcode.com/problems/combinations/ Given two integers n and k, return all possible combinations of k numbers out of 1 ... n. For example,If n 阅读全文

摘要： https://leetcode.com/problems/spiral-matrix-ii/Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.For example... 阅读全文

摘要： https://leetcode.com/problems/spiral-matrix/Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For examp... 阅读全文