leetcode

0 class Solution {

1 public:

2 vector<string> removeComments(vector<string> &source) {

3 vector<string> res = {""};

4 bool block = false;

5

6 for (const auto &l : source) {

7 int j = 0, i;

8

9 for (i = 0; i < size(l); i++) {

10 if (!block && l[i] == '/' && l[i + 1] == '/')

11 break;

12 else if (!block && l[i] == '/' && l[i + 1] == '*') {

13 if (i != j) res.back() += l.substr(j, i - j);

14

15 i++; // prevent /*/ as close

16 block = true;

17 } else if (block && l[i] == '*' && l[i + 1] == '/') {

18 j = i + 2;

19 i++; // prevent */* as open

20 block = false;

21 }

22 }

23

24 if (!block && i != j) res.back() += l.substr(j, i - j);

25 if (!block && !res.back().empty()) res.push_back("");

26 }

27

28 if (res.back().empty()) res.pop_back();

29 return res;

30 }

31 };