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by fdomingues 1959 days ago
C++ Is NOT 9.4 Times Faster Than Python in Prime Number Test

I added 3 lines to the Python code and got it 10x faster:

    (venv) $ python prime.py 
    Number of primes between 0 to 1000000 = 78498
    Elapsed time: 6.502481937408447
    (venv) $ python prime.py 
    Number of primes between 0 to 1000000 = 78498
    Elapsed time: 0.6258630752563477
Diff:

    3c3,5
    < 
    ---
    > import numba
    >  
    > @numba.njit
    14a17
    > @numba.njit