Why do I get the same result with rand() every time I compile and run?
c, random
Solution
You need to seed the rand function with a unique number before it can be used. The easiest method is to use `time()`
For example
srand(time(NULL));
rand();//now returns a random number
The reason is that the random numbers provided by rand() (or any other algorithm based function) aren't random. The rand function just takes its current numerical state, applies a transformation, saves the result of the transformation as the new state and returns the new state.
So to get rand to return different pseudo random numbers, you first have to set the state of rand() to something unique.
Problem
Whenever I run this code, I get a same result. Program ``` #include<stdlib.h> int main(int agrc, const char *argv[]) { int i = rand(); printf("%d\n",i); for(i=0;i<10;i++) { printf("%d\n",rand()); } } ``` Result: ``` 41 18467 6334 26500 19169 15724 11478 29358 26962 24464 5705 ``` I ran this on `mingw`. Actually I am learning `Objective-C` Please help me.