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Лимит времени 2000/4000/4000/4000 мс. Лимит памяти 65000/65000/65000/65000 Кб.
Question by Ibrahim Mesecan.
Sum is equal to K
Math professor of your brother gave a homework
for kids. The professor gives n numbers, and he asks
if number k can be produced by adding or subtracting
any given number.
Question:
Write a program that is going to get information and
decide if it's possible to calculate the given
number k or not.
Input specification
In the first line, you will be given two integers: The
number of numbers(n) and the number (k) to calculate
where 0 ≤ n ≤ 17 and -20,000 ≤ k ≤ 20,000.
Then, in the following line, you will be given n
integers where each number is between -10,000
and 10,000.
Output specification:
Show "No", if it is not possible to calculate k.
Otherwise, show "Yes" in the first line.
Then, in the next line show
the numbers whose sum is equal to k.
Note: - Each input number
can be used only once.
- There can be many
possible solutions. It is OK to show any correct
solution.
Sample Input I
4 7
1 2 3 5
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Sample Input II
4 8
1 2 3 10
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Sample Output I
Yes
2 5
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Sample Output II
Yes
-2 10
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Для отправки решений необходимо выполнить вход.
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