Grandyang

摘要： Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two n 阅读全文

摘要： Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of 阅读全文