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My program contains code that should generate a random positive integer number every time I execute it. It generates random numbers but only once. After that, when I execute same code, it gives me same values, and it is making my code useless. I started with the rand function, and then I used the srand() function with the time.h header file, but still it is not working properly. #define size 10 for(i=0;i<size;i++) Arr[i] = rand()%size; First call (random): 6 0 2 0 6 7 5 5 8 6 Second call (random but same as previous): 6 0 2 0 6 7 5 5 8 6 Later I visited Stack Overflow questions and I read about the srand() function, and I used it as: #include<time.h> for(i=0;i<size;i++) Arr[i] = srand(time(NULL)); First call: -10327 -10327 -10327 -10327 -10327 -10327 -10327 -10327 -10327 -10327 Second call: -10326 -10326 -10326 -10326 -10326 -10326 -10326 -10326 -10326 -10326 It is giving me different (but not random values). I've defined Arr[i] as unsigned int , and still I am getting negative values.
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