|| ||Code Submission Evaluation System
CSES Problem Set
Task | Statistics
CSES - AdvertisementCSES - Advertisement
|Time limit:||1.00 s
||Memory limit:||512 MB|
A fence consists of $n$ vertical boards. The width of each board is 1 and their heights may vary.
You want to attach a rectangular advertisement to the fence. What is the maximum area of such an advertisement?
The first input line contains an integer $n$: the width of the fence.
After this, there are $n$ integers $k_1,k_2,\ldots,k_n$: the height of each board.
Print one integer: the maximum area of an advertisement.
- $1 \le n \le 5 \cdot 10^5$
- $1 \le k_i \le 10^9$
4 1 5 3 3 2 4 1