Count and Say [LeetCode 38]

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Count and Say [LeetCode 38]

1- 问题描述 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

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 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…

LeetCode(38)题解: Count and Say

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

[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…

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 38 Count and Say 传说中的递推

class Solution { public: vector<string> vs_; Solution(){ "); vs_.push_back(t); ; i< ;++i){ ]; t = ""; ,j ; ; j < t1.size() - ; ++j){ ]){ ++cnt; } else{ ] =""; sprintf(s,"%d%c",cnt,t1[j]); t += string(s); cnt…

leetcode 38 Count and Say ---java

这道题主要就是求一个序列,题目得意思就是 1 --> 11 --> 21 --> 1211 --> 111221 --> 312211 --> ..... 1个1 2个1 1个2,1个1 1个1,1个2,2个1 3个1,2个2,1个1 依次类推题目很简单,但是为了得到较好的结果,还是纠结了一段时间 public class countAndSay { public String countAndSay(int n) { String num…