摘要：3. Longest Substring Repeating Character Difficulty:Medium The link: https://leetcode.com/problems/longest substring without repeating characters/ Des 阅读全文

摘要：2. Add Two numbers Difficulty:Medium The Link https://leetcode.com/problems/add two numbers/ Description Solutions: Solution A: Brute force attack (暴力 阅读全文

摘要：1 Two Sum Difficulty: Easy The Link: https://leetcode.com/problems/two sum/description/ Description : Solutions Solution A: 暴力解法 two loop runtime:7496 阅读全文