Leetcode-5013 Index Pairs of a String(字符串的索引对)

依旧没啥好说的

#define _for(i,a,b) for(int i = (a);i < b;i ++)

class Solution
{
    public:
        vector<vector<int>> indexPairs(string text, vector<string>& words)
        {
            set<string> s;
            vector<vector<int>> v;
            _for(i,0,words.size())
                s.insert(words[i]);
            
            _for(i,0,text.size())
                _for(j,i,text.size())
                {
                    string s1;
                    _for(k,i,j+1)
                        s1 += text[k];
                    
                    if(s.count(s1))
                    {
                        vector<int> tmp;
                        tmp.push_back(i);
                        tmp.push_back(j);
                        v.push_back(tmp);
                    }
                }
            return v;
        }
};