A8412 | Next Round
时间限制1s
内存限制256MB
通过 / 提交0/0
题目描述
"Contestant who earns a score equal to or greater than the $k$ -th place finisher's score will advance to the next round, as long as the contestant earns a positive score..." — an excerpt from contest rules.
A total of $n$ participants took part in the contest ( $n>=k$ ), and you already know their scores. Calculate how many participants will advance to the next round.
A total of $n$ participants took part in the contest ( $n>=k$ ), and you already know their scores. Calculate how many participants will advance to the next round.
输入格式
The first line of the input contains two integers $n$ and $k$ ( $1<=k<=n<=50$ ) separated by a single space.
The second line contains $n$ space-separated integers $a_{1},a_{2},...,a_{n}$ ( $0<=a_{i}<=100$ ), where $a_{i}$ is the score earned by the participant who got the $i$ -th place. The given sequence is non-increasing (that is, for all $i$ from $1$ to $n-1$ the following condition is fulfilled: $a_{i}>=a_{i+1}$ ).
The second line contains $n$ space-separated integers $a_{1},a_{2},...,a_{n}$ ( $0<=a_{i}<=100$ ), where $a_{i}$ is the score earned by the participant who got the $i$ -th place. The given sequence is non-increasing (that is, for all $i$ from $1$ to $n-1$ the following condition is fulfilled: $a_{i}>=a_{i+1}$ ).
输出格式
Output the number of participants who advance to the next round.
输入输出样例
输入 #1
8 5 10 9 8 7 7 7 5 5
输出 #1
6
输入 #2
4 2 0 0 0 0
输出 #2
0
In the first example the participant on the 5th place earned 7 points. As the participant on the 6th place also earned 7 points, there are 6 advancers.
In the second example nobody got a positive score.
In the second example nobody got a positive score.
C++ 编辑器
输入
输出
可保存默认模板；新题优先使用已保存模板。
当前快捷键仅展示，暂不支持修改。
- 撤销
Ctrl / ⌘ + Z - 重做
Ctrl / ⌘ + Y - 查找
Ctrl / ⌘ + F - 全选
Ctrl / ⌘ + A - 复制
Ctrl / ⌘ + C - 剪切
Ctrl / ⌘ + X - 粘贴
Ctrl / ⌘ + V - 自动排版
工具栏排版按钮 - 草稿保存
编辑时自动保存到本机
历史
提交记录
状态说明时间源码
AI
作答助手
你好，我是作答助手。可以问思路、复杂度、样例含义或代码报错原因；不会直接给出完整 AC 代码。
确定要清空代码吗？
提交通过
评测结果：Accepted