[棧] leetcode 385 Mini Parser

problem:https://leetcode.com/problems/mini-parser/

        一道普通的翻譯題？代碼寫的很不優雅：

class Solution {
public:
    NestedInteger deserialize(string s) {
        if(s.size() && s.front() != '[' && s.back() != ']')
        {
            return NestedInteger(atoi(s.c_str()));
        }
        s = s.substr(1, s.size() - 2);
        
        NestedInteger res;
        int count = 0;
        string strValue;
        string strList;
        
        for(int i = 0;i < s.size(); i++)
        {
            if(s[i] == '[')
            {
                count++;
            }
            else if(s[i] == ']')
            {
                count--;
                if(count == 0)
                {
                    strList.push_back(s[i]);
                    res.add(deserialize(strList));
                    strList.clear();
                }
            }
            if(count == 0)
            {
                if(isdigit(s[i]) || s[i] == '-')
                {
                    strValue.push_back(s[i]);
                }
                else if(s[i] == ',' && !strValue.empty())
                {
                    res.add(NestedInteger(atoi(strValue.c_str())));
                    strValue.clear();
                }
            }
            else if(count >= 1)
            {
                strList.push_back(s[i]);
            }
        }
        if(!strValue.empty()) res.add(NestedInteger(atoi(strValue.c_str())));
        return res;
    }
};