⚡️ Speed up function word_frequency by 19.87%#313
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⚡️ Speed up function word_frequency by 19.87%#313codeflash-ai[bot] wants to merge 1 commit intomainfrom
word_frequency by 19.87%#313codeflash-ai[bot] wants to merge 1 commit intomainfrom
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The `word_frequency` function replaced an if-else branch (`if word in frequency: frequency[word] += 1 else: frequency[word] = 1`) with a single assignment using `dict.get(word, 0) + 1`, eliminating a redundant dictionary lookup on every word occurrence. Each lookup in the original code checked membership then accessed the key again for increment, whereas `get` performs one hash lookup and returns a default if missing, reducing per-word overhead and yielding a 19% runtime improvement with no trade-offs.
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📄 19.87% (0.20x) speedup for
word_frequencyinsrc/algorithms/string.py⏱️ Runtime :
4.21 milliseconds→3.51 milliseconds(best of213runs)📝 Explanation and details
The
word_frequencyfunction replaced an if-else branch (if word in frequency: frequency[word] += 1 else: frequency[word] = 1) with a single assignment usingdict.get(word, 0) + 1, eliminating a redundant dictionary lookup on every word occurrence. Each lookup in the original code checked membership then accessed the key again for increment, whereasgetperforms one hash lookup and returns a default if missing, reducing per-word overhead and yielding a 19% runtime improvement with no trade-offs.✅ Correctness verification report:
To edit these changes
git checkout codeflash/optimize-word_frequency-mnhpimr9and push.