Rand() isn't displaying random number, please help me understand what's wrong :) [duplicate]

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• Why does rand() yield the same sequence of numbers on every run? 6 answers

So I am new to C++ and learning all alone... until now everything went fine, but i am learning how to use rand() and the result does bother me a little...

So my goal is to generate a random number for the HP of a player at the beginning of a game. To be fair, I set up a minimal HP of 50 points and I want to create a random number with 50 being the minimal and 200 the maximum.

int HP = 50 + rand() %200;

cout << HP;

Now, the problem is:

The program always give me the same int.
To check the result i created a new project and only displayed the rand() number with the same values, and I got the same result -> 91. this mean, I would say int HP = 91; would be exactly the same.

Practice and trial being the key to learn (I think) I tried the same rand() values on 5 new projects, always the same number...