［抄题］: The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ... 1 is read off as "one 1" or 11.11 is read off as "two 1s" or 21.21 is read off as "one 2, then one 1" or 1211.Give…

38. Count and Say Problem's Link ---------------------------------------------------------------------------- Mean: 题目意思太晦涩. 1 读出来 就是“1个1” 所以记为“11” 11 读出来 就是“2个1” 所以记为“21” 21 读出来 就是“1个2 1个1” 所以记为“1221” .... analyse: 略. Time complexity: O(N) view code…

38. Count and Say The count-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, ... 1 is read off as "one 1" or 11. 11 is read off as "two 1s" or 21. 21 is read off as "one 2, then one 1&quo…

1.题目 38. Count and Say The count-and-say sequence is the sequence of integers with the first five terms as following: 1. 1 2. 11 3. 21 4. 1211 5. 111221 1 is read off as "one 1" or 11.11 is read off as "two 1s" or 21.21 is read off as …

这道题是LeetCode里的第38道题. 题目要求: 报数序列是一个整数序列,按照其中的整数的顺序进行报数,得到下一个数.其前五项如下: 1. 1 2. 11 3. 21 4. 1211 5. 111221 1 被读作  "one 1"  ("一个一") , 即 11.11 被读作 "two 1s" ("两个一"), 即 21.21 被读作 "one 2",  "one 1" (&quo…

题目: 报数 报数指的是,按照其中的整数的顺序进行报数,然后得到下一个数.如下所示: 1, 11, 21, 1211, 111221, ... 1 读作 "one 1" -> 11. 11 读作 "two 1s" -> 21. 21 读作 "one 2, then one 1" -> 1211. 给定一个整数 n, 返回 第 n 个顺序. 样例 给定 n = 5, 返回 "111221". 注意 整数的顺序将…

#-*- coding: UTF-8 -*- class Solution(object):    def countAndSay(self, n):        """        :type n: int        :rtype: str        """        n=n-1        if n==0:return str(1)        tag=1;stri=str(11)        while tag<…

The count-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, ... 1 is read off as "one 1" or 11.11 is read off as "two 1s" or 21.21 is read off as "one 2, then one 1" or 1211. Given an…

The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ... 1 is read off as "one 1" or 11.11 is read off as "two 1s" or 21.21 is read off as "one 2, then one 1" or 1211. Given an…

题目描述: The count-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, ... 1 is read off as "one 1" or 11. 11 is read off as "two 1s" or 21. 21 is read off as "one 2, then one 1" or 1211.…