Roman left me with a very pleasant impression - he did everything quickly and efficiently. There was simply no chance for problems 🙂
0
0
Budget: 100 USD Deadline: 1 day
Hello!
Your script is slow because of two functions:
generate_auto_seed() — bit enumeration, working with large numbers.
rank_two_symbols_optimized() — permutation rank calculation (heavy combinatorial operations).
What I will do:
1. Algorithmic optimization
I will replace the enumeration with an O(n) algorithm for ranking binary sequences (analogous to the Combinatorial Number System).
I will pre-calculate binomial coefficients in O(n²) once, not in a loop.
2. Speedup by 10-100 times
I will rewrite critical parts in Cython (remove Python overhead).
I will add Numba JIT compilation for math.
If needed — SIMD instructions (AVX2) via C extensions.
3. Parallelism and memory
I will split the data into blocks, process in 4-8 threads (multiprocessing).
I will replace lists with numpy.ndarray (dtype=uint8) to save memory.
4. Guarantees
The first 500 KB will be processed in ≤3 sec in 2 days.
The final result is 1-3 sec/MB (or I will refund the money for the improvements).
Why me?
I recently accelerated similar code for seed generation in cryptography (from 30 sec to 0.8 sec).
I am ready to show a prototype on the first 100 lines of your data for free.
What should I send:
Sources of generate_auto_seed() and rank_two_symbols_optimized().
An example of input data (bit array 0/1).
Precise requirements for the environment (Python 3.10? Linux/Windows?).
Starting today. Waiting for your data!
Respectfully,
Ziqo,
P.S. If you have any doubts, I can do a free analysis of 10-20 lines of code and show how to speed them up
Roman Smolyakov
Winning proposal
33
1
Budget: 95 USD Deadline: 1 day
Good day! I am always available to help. Write to me, we will discuss! And don't forget to check out the portfolio — there is a lot of interesting stuff there!
6
0
Budget: 100 USD Deadline: 2 days
Hello, I am interested in your offer, can I learn more about it in private messages.
The list does not show proposals concealed by the client or freelancer with a Plus profile, as well as proposals violating rules
