I submit my solution and guarantee that it's totally random return. Why I still can't pass test case six? Do I miss anything?

```
class RandomerType {
private :
int count_;
int temp_;
int model_;
public :
RandomerType(int count, int t, int n) : count_(count), temp_(t), model_(n){};
int operator()(int index) {
srand(index * count_);
temp_ = temp_ + (rand() % 1000);
return temp_ % model_;
};
};
class Solution {
private:
vector<int> cards_;
int count_ = 0;
public:
Solution(vector<int> nums) {
cards_ = nums;
}
/** Resets the array to its original configuration and return it. */
vector<int> reset() {
return cards_;
}
/** Returns a random shuffling of the array. */
vector<int> shuffle() {
size_t n = cards_.size();
++ count_;
srand(count_ + time(0));
int t = rand();
vector<int> result = cards_;
auto random_er = RandomerType(count_, t, n);
random_shuffle(result.begin(), result.end(), random_er);
return result;
}
};
```