Leetcode 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"

 or 

1211

.

Given an integer n, generate the nth sequence.

Note: The sequence of integers will be represented as a string.
逐字暴力翻译，模拟题
class Solution {
public:
string countAndSay(int n) {
string result="1";
for(int i=1;i<n;i++)
{
string temp;
for(int j=0;j<result.length();j++)
{
int cnt=1;
while(j<result.length()-1 && result[j]==result[j+1])
{
cnt++;
j++;
}
temp+=to_string(cnt)+result[j];
}
result=temp;
}
return result;
}
};