random size objects c++ -

i've been trying complete programming exercise involves allocating 10,000 objects of random sizes in [1000:0)-byte range using new, purpose time how long takes new allocate objects , how long takes delete deallocate them. wondering what's best way objects of random sizes? thought of 1 method i'm not sure if correct:

// object of varying size class object { public:     object(int num_bytes)  { vc.resize(num_bytes); }     vector<char> vc;  // char 1 byte };  int n = 10000;  // number of objects allocate  vector<object*> pointers;  (int = 0; < n; ++i) {     int size = randint(1, 1000);    // random number between 1 , 1000     object* p = new object(size);     pointers.push_back(p);  // keep pointers objects in vector                                          // can later deallocate } 

for (int = 0; < n; ++i) {     int size = randint(1, 1000);    // random number between 1 , 1000     char* p = new char[size];     pointers.push_back(p); } 

i think code need.