Codeforces Round 443 (Div. 1)
B
Teams Formation
Codeforces
2300
原题
← AC →
翻译中…

This time, the Berland Team Olympiad in Informatics is held in a remote city that can only be reached by one small bus. The bus has $n$ passenger seats, seat $i$ can be occupied only by a participant from the city $a_i$.

翻译中…

Today, the bus has completed $m$ trips, each time bringing $n$ participants. The participants were then aligned in one line in the order they arrived, with people from the same bus standing in the order of their seats (i. e. if we write down the cities where the participants came from, we get the sequence $a_1, a_2, \ldots, a_n$ repeated $m$ times).

翻译中…

After that some teams were formed, each consisting of $k$ participants from the same city standing next to each other in the line. Once formed, teams left the line. The teams were formed until there were no $k$ neighboring participants from the same city.

翻译中…

Help the organizers determine how many participants are left in the line after that process ended. We can prove that answer doesn't depend on the order in which teams were selected.

翻译中…

Input

翻译中…

The first line contains three integers $n, k$ and $m$ ($1 \le n \le 10^5$, $2 \le k \le 10^9$, $1 \le m \le 10^9$).

翻译中…

The second line contains $n$ integers $a_1, a_2, \ldots, a_n$ ($1 \le a_i \le 10^5$), where $a_i$ is the index of city where the person occupying the $i$-th seat in the bus must be from.

翻译中…

Output

翻译中…

Output the number of remaining participants in the line.

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Note

翻译中…

In the second example, the line consists of ten participants from the same city. Nine of them will form a team. At the end, only one participant will stay in the line.

翻译中…

样例

Input #1
4 2 5
1 2 3 1
Output #1
12
InputCopy OutputCopy
Input #2
1 9 10
1
Output #2
1
InputCopy OutputCopy
Input #3
3 2 10
1 2 1
Output #3
0
InputCopy OutputCopy
题目信息
题号
878B
时间限制
2 s
内存限制
256 MB
标签
数据结构
模拟

题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。