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| 1 | +class Solution { |
| 2 | +public: |
| 3 | + vector<string> validateCoupons(vector<string>& code, vector<string>& businessLine, vector<bool>& isActive) { |
| 4 | + vector<vector<string>> m(4); // "electronics", "grocery", "pharmacy", "restaurant" |
| 5 | + int n = code.size(); |
| 6 | + for(int i = 0; i < n; i++) { |
| 7 | + if(!isActive[i]) |
| 8 | + continue; |
| 9 | + |
| 10 | + string c = code[i]; |
| 11 | + if(!all_valid_chars(c)) |
| 12 | + continue; |
| 13 | + |
| 14 | + string b = businessLine[i]; |
| 15 | + if(b == "electronics") |
| 16 | + m[0].push_back(c); |
| 17 | + else if(b == "grocery") |
| 18 | + m[1].push_back(c); |
| 19 | + else if(b == "pharmacy") |
| 20 | + m[2].push_back(c); |
| 21 | + else if(b == "restaurant") |
| 22 | + m[3].push_back(c); |
| 23 | + } |
| 24 | + |
| 25 | + for(auto &v : m) |
| 26 | + ranges::sort(v); |
| 27 | + |
| 28 | + vector<string> ans; |
| 29 | + for(auto v : m) |
| 30 | + ans.insert(ans.end(), v.begin(), v.end()); |
| 31 | + return ans; |
| 32 | + } |
| 33 | + |
| 34 | +private: |
| 35 | + bool all_valid_chars(const string &s) { |
| 36 | + if(s.empty()) |
| 37 | + return false; |
| 38 | + |
| 39 | + for(char c : s) { |
| 40 | + if(!isalnum(c) && c != '_') |
| 41 | + return false; |
| 42 | + } |
| 43 | + return true; |
| 44 | + } |
| 45 | +}; |
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