Random Number: either 0 or 1

c, random

Solution

If you meant 0 or 1, your `%` makes some sense, but you meant `% 2` (or `& 1`). Of course, the `+ 0` is still rather pointless, no idea what you're aiming for there. For an integer result of 0 or 1, just do:

const randomBit = rand() % 2;

The compiler will probably "strength-reduce" that to:

const randomBit = rand() & 1;

Also, make sure you only call `srand()` once in your program or it won't have the effect you expect.

Problem

I've this code: ``` srand(time(NULL)); int n = rand() % 1 + 0; printf("%d\n", n); ``` But, if i put it (not`srand(time(NULL))`) in a loop for e.g., it generates only a sequence of 0. There is another implementation for the random numbers between 0 and 1 or i've forgot something?

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