INGIniousGiven the following structure university_t:
typedef struct university {
char* city;
int creation;
person_t* rector;
} university_t;
And the structure person_t:
typedef struct person {
char* name;
int salary;
int age;
} person_t;
You are asked to implement the functions init_all and free_all, which respectively initialises the structure university_t and frees all the memory associated with it.
The name and the city have been allocated with malloc.
Hint: all the data may not have been initialised correctly. Therefore, you have to handle all the cases (e.g. some pointers can be already NULL, and don't need to be freed).