编程模拟老师的询问

 

import com.sun.deploy.util.UpdateCheck;

import java.util.Scanner;

/**
 * Created: 2019/3/30
 */
public class Main4 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int StudentCount = scanner.nextInt();//学生数目
        int OperatedCount = scanner.nextInt();//操作数目
        int[] arr = new int[StudentCount];
        //学生初始成绩放入数组
        for (int i = 0; i < StudentCount; i++) {
            arr[i] = scanner.nextInt();
        }
        while (OperatedCount != 0) {
            String sc=scanner.next();
            int n1 = scanner.nextInt();
            int n2 = scanner.nextInt();
            if (sc.equals("Q")) {
                int i;
                int max=arr[n1-1];
                for (i = n1; i < n2; i++) {
                    max=Math.max(max,arr[i]);
                }
                System.out.println(max);
            } else {
                arr[n1-1] = n2;
            }
            OperatedCount--;
        }
    }
}