Mathematical, 1 liner solution. (c++)
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```cpp []\nclass Solution {\npublic:\n    long long minimumSteps(string s) {\n        ios::sync_with_stdio(false);cin.tie(nullptr);\n        long long ans=0, z=0;\n        for(auto&ch : s) ch==\'0\' ? ans+=z : z++;\n        return ans;\n    }\n};\n```
['C++']