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 …

#-*- 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.…

https://leetcode.com/problems/count-and-say/#/description 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 re…

一天一道LeetCode系列 (一)题目 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&qu…

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 "one 2, then one 1…