Java今日算法刷题

import java.util.Arrays;
import java.util.Scanner;

public class 六一儿童节 {

public static void main(String[] args) {
    //接收输入
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int[] h = new int[n];
    for (int i = 0; i < n; i++) {
        h[i] = sc.nextInt();
    }
    int m = sc.nextInt();
    int[] w = new int[m];
    for (int i = 0; i < m; i++) {
        w[i] = sc.nextInt();
    }
    //把w和h数组从小到大排序
    Arrays.sort(w);
    Arrays.sort(h);
    int res = 0;
    int i = 0, j = 0;
    while (i < m && j < n) {
        if(w[i] >= h[j]){
            res++;
            i++;
            j++;
        }else{
            i++;
        }
    }
    System.out.println(res);

}

}