Вопрос:

The Python code defines a condition for printing "YES" or "NO" based on two input integers, s and k. The condition is `if (s <= k) or not (k > 5):`. There were 9 runs of the program with the following pairs of (s, k): (13, 11); (-1, -4); (14, 8); (5, 7); (-10, 2); (12, 5); (11, 10); (8, 6); (9, 9). How many of these runs resulted in the program printing "YES"?

Смотреть решения всех заданий с листа

Ответ:

Let's analyze the condition: if (s <= k) or not (k > 5):

This condition is true if either of the following is true:

  • s <= k
  • not (k > 5), which is equivalent to k <= 5

So, the program prints "YES" if s <= k OR k <= 5.

Now let's check each pair:

  • (13, 11): s <= k (13 <= 11) is False. k <= 5 (11 <= 5) is False. So, NO.
  • (-1, -4): s <= k (-1 <= -4) is False. k <= 5 (-4 <= 5) is True. So, YES.
  • (14, 8): s <= k (14 <= 8) is False. k <= 5 (8 <= 5) is False. So, NO.
  • (5, 7): s <= k (5 <= 7) is True. So, YES.
  • (-10, 2): s <= k (-10 <= 2) is True. So, YES.
  • (12, 5): s <= k (12 <= 5) is False. k <= 5 (5 <= 5) is True. So, YES.
  • (11, 10): s <= k (11 <= 10) is False. k <= 5 (10 <= 5) is False. So, NO.
  • (8, 6): s <= k (8 <= 6) is False. k <= 5 (6 <= 5) is False. So, NO.
  • (9, 9): s <= k (9 <= 9) is True. So, YES.

The pairs that result in "YES" are: (-1, -4), (5, 7), (-10, 2), (12, 5), (9, 9).

There are 5 such pairs.

Ответ: 5

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