Que16|AcWing 800. 数组元素的目标和

题目：AcWing 800. 数组元素的目标和 - AcWing

代码实现：

import java.util.*;
public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int m = sc.nextInt();
        int x = sc.nextInt();
        int[] a = new int[n];
        int[] b = new int[m];
        for (int i = 0; i < n; i++) a[i] = sc.nextInt();
        for (int i = 0; i < m; i++) b[i] = sc.nextInt();
        
        for (int i = 0, j = m - 1; i < n; i++) {
            while (j >= 0 && a[i] + b[j] > x) {
                j--;
            }
            if (a[i] + b[j] == x) {
                System.out.print(i + " " + j);
                break;
            }
        }
    }
}