← Skills
Hashing
frequency map
Count occurrences: counts[x] = counts.get(x, 0) + 1.
Builds on: dict.get, for loop
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Unseen
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- Attempts
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- Correct
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- Failed
- 0
- Clean streak
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- Cold
- 0/0
- Hints
- 0
Next review: after your first rep
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