How to use rand() function without comming same value in c++

Question

we also use srand(time(0)) that time we use the for loop inside rand() function some time get same out put

Answer 1

https://code.sololearn.com/c9FISKz5c7mN/?ref=app

Answer 2

it is an implementation of Power Distribution Law
it gives fairly different value everytime.

Answer 3

sorry friend i don't mention what is the program i want