leetcode

0 class Solution {

1 public:

2 string addSpaces(const string &s, const vector<int> &spaces) const {

3 static char res[600001];

4 int i = 0, j = 0, k = 0;

5 while (i < size(s)) {

6 if (j < size(spaces) && i == spaces[j])

7 res[k++] = ' ', j++;

8 else

9 res[k++] = s[i++];

10 }

11 return string(res, k);

12 }

13 };