Write a customer notice using only these facts: a fictional online notebook store will pause new orders on 12 October for inventory checks and reopen on 14 October. Existing orders are unaffected. Output exactly three sentences, 45 to 60 words in total, with no heading or bullet points. Include both dates and say existing orders are unaffected. Do not add an apology, discounts, delivery estimates, or any other facts. Do not use web search or tools.

Our online notebook store will pause new orders on 12 October for inventory checks. We will reopen on 14 October. Existing orders are unaffected.

Our online notebook store will pause new orders on 12 October while we conduct inventory checks. New orders will reopen on 14 October once the inventory checks are complete. Existing orders are unaffected, and customers with existing orders do not need to take any action.

Using only the text below, output one valid JSON object with exactly these keys: product, price_usd, release_date, warranty_months. Use null for any value not stated. No Markdown or commentary. Text: The fictional Luma desk lamp costs $39. A retailer expects it to arrive in November, but the manufacturer has not announced a release date. Its warranty lasts 18 months. Do not use web search or tools.

{"product":"Luma desk lamp","price_usd":39,"release_date":null,"warranty_months":18}

{"product":"Luma desk lamp","price_usd":39,"release_date":null,"warranty_months":18}

A workshop has 37 bookings. Each booking reserves either 2 or 5 seats. The total is 116 seats. How many bookings of each size are there? Give the two counts and verify both the booking total and seat total in no more than 80 words. Do not use web search, a calculator, code execution, or any tools.

Let x = bookings of 2 seats, y = bookings of 5 seats.
x + y = 37
2x + 5y = 116

Subtract 2(x + y) = 74 from 2x + 5y = 116:
3y = 42, so y = 14.
Then x = 23.

Answer: 23 bookings of 2 seats, 14 bookings of 5 seats.
Check: 23 + 14 = 37 bookings. Seats: 23×2 + 14×5 = 46 + 70 = 116.

Let x be 2-seat bookings and y be 5-seat bookings.

x+y=37
2x+5y=116

Subtracting 2(x+y)=74: 3y=42, so y=14. Thus x=23.

Answer: 23 bookings of 2 seats and 14 bookings of 5 seats.

Verify: 23+14=37 bookings; 23(2)+14(5)=46+70=116 seats.

Fix this Python function so it returns the second-largest DISTINCT integer, without modifying the input list, and returns None if fewer than two distinct values exist. Return only the complete function in a Python code block. Do not use web search or tools.

def second_largest(values):
    values.sort()
    return values[-2]

def second_largest(values):
    unique = sorted(set(values), reverse=True)
    return unique[1] if len(unique) >= 2 else None

def second_largest(values):
    distinct = set(values)
    if len(distinct) < 2:
        return None
    return sorted(distinct)[-2]

We tested an empty list, one value, repeated identical values, mixed duplicates, negative numbers, zero with a negative value, an unsorted three-value list and a two-value list. The expected outputs were respectively None, None, None, 2, −3, −1, 5 and 2.

cases = [([], None), ([7], None), ([7, 7], None),
         ([3, 1, 3, 2], 2), ([-5, -1, -3], -3),
         ([0, -1, 0], -1), ([8, 2, 5], 5), ([2, 8], 2)]
for values, expected in cases:
    sample = values.copy()
    assert second_largest(sample) == expected
    assert sample == values