题解 | 单组_spj判断数组之和

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        //数组长度为n
        int n = in.nextInt();
        //数组元素之和为m
        int m = in.nextInt();
        int[] arr = new int[n];
        if (n * n + n == 2 * m) {
            for (int i = 0; i < n; i++) {
                arr[i] = i + 1;
            }
        }else {
            for (int i = 0; i < n -1 ; i++) {
                arr[i] = 1;
            }
            arr[n - 1] = m - n + 1;
        }
        int j = 0;
        while (j < n) {
            System.out.print(arr[j++] + " ");
        }
        
    }
}