Does anyone know how to solve this question? Any hint or approach?\n\n![image](https://assets.leetcode.com/users/images/35f4b3e8-4308-44f6-9fe0-84fa9c66a956_1634592436.6871486.jpeg)\n![image](https://assets.leetcode.com/users/images/35e8594d-3a09-4676-b025-e5dbdee3051c_1634592444.093106.jpeg)\n\nIt looked like minimum size vortex cover approach but not sure\n

Does anyone know how to solve this question? Any hint or approach?\n\n\n\n\nIt looked like minimum size vortex cover approach but not sure\n