leetcode

0 class Solution {

1 public:

2 int minimumLength(const string &s) const {

3 int i = 0, j = size(s) - 1;

4 while (i < j && s[i] == s[j]) {

5 const int goal = s[i];

6 while (i <= j && s[i] == goal)

7 i++;

8 while (i < j && s[j] == goal)

9 j--;

10 }

11

12 return j - i + 1;

13 }

14 };