1. Depth of last earthquake after 70 passes (selection sort on depth, Dec6sample2)

✔️ 123.45 km
(This is the commonly resulting answer for this dataset after 70 passes.)

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2. Passes needed for selection-sort-with-check (magnitude, WeekDec6sample1.atom)

✔️ 1298
❌ 1282
❌ 1292
❌ 1299
❌ 1301
❌ 1319

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3. Passes needed for bubble-sort-with-check (magnitude, WeekDec6sample2.atom)

✔️ 1255
❌ 1226
❌ 1233
❌ 1240
❌ 1260
❌ 1267

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4. After two passes of selection sort on

2 4 5 9 8 1

Correct result after 2 passes:

✔️ 1 2 5 9 8 4
❌ 1 2 4 9 8 5
❌ 1 2 5 4 9 8
❌ 1 4 5 9 8 2
❌ 2 4 5 9 8 1
❌ 4 1 5 2 8 9

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5. After two passes of bubble sort on

4 2 5 9 8 1

Correct result after 2 bubble passes:

✔️ 2 4 5 1 8 9
❌ 2 4 1 5 8 9
❌ 2 4 5 8 1 9
❌ 4 2 5 1 8 9
❌ 4 2 5 8 1 9
❌ 4 2 5 9 8 1

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6. Position 600 after sorting by (Magnitude ↑, Depth ↓)

File: earthQuakeDataWeekDec6sample2.atom

✔️ 17.80 km

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7. Position 500 after sorting by Title (A–Z), tie → Depth ↑

✔️ 4.97 km

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8. Position 500 after sorting by Last-Word-in-Title (A–Z), tie → Magnitude ↑

✔️ 10.54 km

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✅ Summary Table

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