Problem D
Turn It Up!
Languages
da
en
Your volume control is at a comfortable $7$ – not too high, not too low. Your friends entirely disagree, and frequently request you turn it up or turn it down, often in a somewhat inappropriate tone of voice.
Ever aiming to please, you try to accomodate their requests and increase or decrease the volume by one step accordingly. There are $11$ steps on your volume control: $0$, $1$, $2$, and so on up to $10$.
When the volume is set to $0$, you can’t turn it further down and can ignore any misguided request to that effect. Similarly, you can’t turn it up to more than $10$.
Where is your volume control after $n$ requests?
Input
A single integer $n$ on the first line, the number of requests.
The following $n$ lines contain either “Skru op!” (Danish for “Turn it up!”) or “Skru ned!” (Danish for “Turn it down!”.)
Output
Write a single integer: The position of your volume control after all $n$ requests.
Points
There are three test groups.
|
Group |
Points |
Constraints |
|
1 |
25 |
$n=1$ |
|
2 |
25 |
$1\leq n\leq 3$ |
|
3 |
50 |
$1\leq n\leq 100$ |
| Sample Input 1 | Sample Output 1 |
|---|---|
3 Skru op! Skru op! Skru ned! |
8 |
| Sample Input 2 | Sample Output 2 |
|---|---|
5 Skru op! Skru op! Skru op! Skru op! Skru ned! |
9 |
