摘要：
原题链接在这里：https://leetcode.com/problems/paint-fence/ 题目： There is a fence with n posts, each post can be painted with one of the k colors. You have to p 阅读全文
摘要：
原题链接在这里：https://leetcode.com/problems/strobogrammatic-number-ii/ 题目： A strobogrammatic number is a number that looks the same when rotated 180 degrees 阅读全文
摘要：
原题链接在这里：https://leetcode.com/problems/strobogrammatic-number/ 题目： A strobogrammatic number is a number that looks the same when rotated 180 degrees (l 阅读全文
摘要：
原题链接在这里：https://leetcode.com/problems/zigzag-iterator/ 题目： Given two 1d vectors, implement an iterator to return their elements alternately. For examp 阅读全文