题目描述：
Find all possible combinations of k numbers that add up to a number n, given that only numbers from 1 to 9 can be used and each combination should be a unique set of numbers.
Ensure that numbers within ...
档案日期2015的20
2015年5月18日 - 2015年5月24日
[LeetCode]Combination Sum III
[LeetCode]Kth Largest Element in an Array
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LeetCode.
题目描述：
Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.
For example,
Given [3,2,1,5,6,4] and k = 2, return ...
[LeetCode]Shortest Palindrome
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LeetCode.
题目描述：
Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest palindrome you can find by performing this transformation.
For example:
Given "aacecaaa", return "aaacecaaa" ...
[LeetCode]House Robber II
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LeetCode.
题目描述：
Note: This is an extension of House Robber.
After robbing those houses on that street, the thief has found himself a new place for his thievery so that he will not get too much attention. This time, all houses ...
[LeetCode]Word Search II
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LeetCode.
题目描述：
Given a 2D board and a list of words from the dictionary, find all words in the board.
Each word must be constructed from letters of sequentially adjacent cell, where "adjacent" cells are those horizontally or vertically neighboring. The ...