Quiz 2

Chatty reference · computationalthinking week 6

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2026-08-16T00:00:00.000Z
Python Week 1: the first filter for runtime behavior
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ChatGPT archive slice for week 6. # 14.

14. CT Week 6 — Tables & Dictionaries

Official syllabus calls this "Table, Dictionary." citeturn1view2
Patterns:

Table

Think:
row×column\text{row}\times\text{column}

Dictionary

Think:
key→value\text{key}\rightarrow\text{value}
Typical questions:
  • Lookup
  • Update
  • Count frequencies
  • Map identifiers to information
  • Represent relationships
  • Translate table ↔ dictionary representation
Frequency counting is a particularly important reusable pattern:
text
for each item:
    frequency[item] += 1
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