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froshweek2.java
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froshweek2.java
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import java.io.*;
import java.util.*;
public class froshweek2 {
public static void main(String[] args) throws Exception {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
StringTokenizer st = new StringTokenizer(in.readLine());
int t = Integer.parseInt(st.nextToken());
int l = Integer.parseInt(st.nextToken());
int[] tasks = new int[t];
int[] quiets = new int[l];
st = new StringTokenizer(in.readLine());
for(int i = 0; i < t; i++) tasks[i] = Integer.parseInt(st.nextToken());
st = new StringTokenizer(in.readLine());
for(int i = 0; i < l; i++) quiets[i] = Integer.parseInt(st.nextToken());
Arrays.sort(tasks);
Arrays.sort(quiets);
int completed = 0;
int j = 0;
int i = 0;
while(i < t && j < l) {
if(quiets[i] >= tasks[j]) {
completed++;
j++;
}
i++;
}
out.println(completed);
out.close();
}
}