Theoretically this is true, but in practice, those who need to write very efficient code competitively, rarely use naive algorithms. (Pure C/C++ also isn't enou

Theoretically this is true, but in practice, those who need to write very efficient code competitively, rarely use naive algorithms. (Pure C/C++ also isn't enough nowadays though, the processor isn't competitive with the GPU in a lot of algorithms, so CUDA/OpenCL needs to be also used in most cases.)