2017年3月5日
20. Valid Parentheses(C++)
摘要： Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the 阅读全文
posted @ 2017-03-05 22:10 DevinGu 阅读(420) 评论(0) 推荐(0)
18. 4Sum(C++)
摘要： Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array whic 阅读全文
posted @ 2017-03-05 21:31 DevinGu 阅读(258) 评论(0) 推荐(0)
17. Letter Combinations of a Phone Number(C++)
摘要： Solution : 1 class Solution { 2 public: 3 vector letterCombinations(string digits) { 4 if(digits.empty()) return vector(); 5 vector list={"","","abc","def","ghi","jkl","mno","... 阅读全文
posted @ 2017-03-05 20:49 DevinGu 阅读(283) 评论(0) 推荐(0)
16. 3Sum Closest(C++)
摘要： Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. 阅读全文
posted @ 2017-03-05 19:21 DevinGu 阅读(177) 评论(0) 推荐(0)