One line solution || Beats 100%runtime || 0ms
```\nclass Solution {\npublic:\n    int minOperations(int n) {\n        return n*n/4;\n    }\n};
```\nclass Solution {\npublic:\n    int minOperations(int n) {\n        return n*n/4;\n    }\n};
['C', 'C++']