To generate then term, justcount and saythen-1 term. 总之就是第n条结果依赖于第n-1条结果。例如: 结果3=21,结果4=1211,从结果3读出1个2和1个1,所以结果4=1211。 话不多说直接上代码吧: 解题代码: classSolution{public:stringcountAndSay(intn){intcount,getnum
append(count > 0 ? count + String.valueOf(cur) : ""); return sb.toString(); } 总结一下 Leetcode上的题目描述我看了好一会儿都没有看懂,后面查了一下,理解了题意,很快就做出来了。 所以理解清楚题目的描述很重要,同时也要学会从题目描述挖掘出信息。 欢迎大家交流,记得点赞~~...
Leetcode 题目整理-8 Count and Say 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" ...
countAndSay(1) = "1" countAndSay(n)is the run-length encoding ofcountAndSay(n - 1). Run-length encoding(RLE) is a string compression method that works by replacing consecutive identical characters (repeated 2 or more times) with the concatenation of the character and the number marking t...
题目链接: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, ...1is read off as"one 1"or11. 11is read off as"two 1s"or21. ...
def countAndSay(self, n): """ :type n: int :rtype: str """ # 打表大法好 table = {1:'1',2:'11',3:'21',4:'1211',5:'111221',6:'312211',7:'13112221',8:'1113213211',9:'31131211131221',10:'13211311123113112211',11:'11131221133112132113212221',12:'3113112221232112111312211312113211'...
Can you solve this real interview question? Count and Say - The count-and-say sequence is a sequence of digit strings defined by the recursive formula: * countAndSay(1) = "1" * countAndSay(n) is the run-length encoding of countAndSay(n - 1). Run-leng
leetcode 38. Count and Say The count-and-say sequence is the sequence of integers with the first five terms as following: 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....
Count and Say 标签: C++ 算法 LeetCode 字符串 递归 每日算法——leetcode系列 问题Count and Say Difficulty:Easy The count-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, ... 1is read off as"one 1"or11....
1. Description Count and Say 2. Solution class Solution{public:stringcountAndSay(intn){if(n==1){return"1";}string result;string current="1";for(inti=1;i<n;i++){result=statistic(current);current=result;}returnresult;}private:stringstatistic(string s){string result;intcount=1;charcurrent...