easy to understand cpp solution || beginner friendly || 0ms runtime
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    int minimumSum(int num) {\n        vector<int>ans;\n        int num1=0,num2=0;\n        while(num){\n            ans.push_back(num%10);\n            num=num/10;\n        }\n        reverse(ans.begin(),ans.end());\n        sort(ans.begin(),ans.end());\n        num1=ans[0]*10+ans[3];\n         num2=ans[1]*10+ans[2];\n\n        return num1+num2;\n    }\n};\n```
['C++']