【[LeetCode] 38. Count and Say 计数和读法】的更多相关文章

[LeetCode] 38. Count and Say 计数和读法

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…

[LeetCode] Count and Say 计数和读法

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…

LeetCode - 38. Count and Say

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…

［LeetCode］Count and Say 计数和发言

Count and Say 计数和发言 思路:首先要理解题意,可以发现后者是在前者的基础之上进行的操作,所以我们拿之前的结果作为现在函数的参数循环n-1次即可,接下来就是统计字符串中相应字符的个数,需要注意的是最后一个字符别忘了处理. class Solution(object): def countAndSay(self, n): """ :type n: int :rtype: str """ if n < 2: return '1'…

[LintCode] Count and Say 计数和读法

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…

LeetCode 38 Count and Say（字符串规律输出）

题目链接:https://leetcode.com/problems/count-and-say/?tab=Description   1—>11—>21—>1211—>111221—>312211—>….   按照上面的规律进行求解出第n个字符串是什么.   规律:相连的数字有多少个然后添加上这个数字   参考代码:    package leetcode_50; /*** * * @author pengfei_zheng * 按照规律进行求解字符串 */ publ…

Java [leetcode 38]Count and Say

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.…

[leetcode]38. Count and Say数数

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…

[LeetCode] 38. Count and Say_Easy

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…

[LeetCode] 466. Count The Repetitions 计数重复个数

Define S = [s,n] as the string S which consists of n connected strings s. For example, ["abc", 3] ="abcabcabc". On the other hand, we define that string s1 can be obtained from string s2 if we can remove some characters from s2 such th…