Solve https://www.acmicpc.net/problem/11729

[jindl465]

Solve this problem!
https://www.acmicpc.net/problem/11729

You have to make YOUR OWN DIRECTORY IN <"name">/"recursive_function"/<"problem number_problem name">.
Next, file name must like this form.

<문제번호>-<문제이름>.cpp
or
<문제번호>-<문제이름>.java

And please attach the result photo.