New different sets of random numbers [duplicate]

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• How to generate a random number in C? 22 answers

I'm having trouble generating a new set of random numbers each time I run the program back again...

I'm using

rand() % 2 + 1;

in a loop, and it's generating multiple random numbers just fine. However, when the program runs again, the same "random" numbers result in. They're fixed to the memory. Hence I tried calling:

srand(time(NULL));

But this time it is generating the same number for each iteration in the entire loop!

How can I solve this problem, please?