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#F2043. Prison Transfer

    ID: 2049 传统题 2000ms 256MiB 尝试: 0 已通过: 0 难度: 2 上传者: 标签>数据结构模拟编程与模拟基础难度共享题库Codeforces英文题面题目来源题面语言

Prison Transfer

题目描述

B. Prison Transfer
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output

The prison of your city has n prisoners. As the prison can't accommodate all of them, the city mayor has decided to transfer c of the prisoners to a prison located in another city.

For this reason, he made the n prisoners to stand in a line, with a number written on their chests. The number is the severity of the crime he/she has committed. The greater the number, the more severe his/her crime was.

Then, the mayor told you to choose the c prisoners, who will be transferred to the other prison. He also imposed two conditions. They are,

  • The chosen c prisoners has to form a contiguous segment of prisoners.
  • Any of the chosen prisoner's crime level should not be greater then t. Because, that will make the prisoner a severe criminal and the mayor doesn't want to take the risk of his running away during the transfer.

Find the number of ways you can choose the c prisoners.

Input

The first line of input will contain three space separated integers n(1≤n≤2·105), t(0≤t≤109) and c(1≤cn). The next line will contain n space separated integers, the ith integer is the severity ith prisoner's crime. The value of crime severities will be non-negative and will not exceed 109.

Output

Print a single integer − the number of ways you can choose the c prisoners.

Examples
Input
4 3 3
2 3 1 1
Output
2
Input
1 1 1
2
Output
0
Input
11 4 2
2 2 0 7 3 2 2 4 9 1 4
Output
6

题目来源:fps-www.educg.net-codeforce-1-2833.xml.zip;FPS 共享题包,题包内第 1634 题。保留原作者与原赛事署名。