C++ Easy Solution ✅✅
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Solution {\npublic:\n    bool isFascinating(int n) {\n        string num1 = to_string(2*n);\n        string num2 = to_string(3*n);\n        string s = to_string(n);\n\n        string ans = s + num1 + num2;\n        unordered_map<char,int> mp;\n\n        for(auto it : ans){\n            mp[it]++;\n        }\n\n        for(auto it : mp){\n            if(it.first==\'0\' || it.second>1) return false;\n        }\n\n        return mp.size()==9;\n    }\n};\n```
['C++']