哥们四次方的和一定是非负数吧（？
by TimSwn090306 @ 2024-02-09 17:48:01
@[TimSwn090306](/user/564732) ~~但是题目没有说明一定有解~~
by xiaozengX @ 2024-02-09 17:49:59
@[xiaozengX](/user/321529) ~~你说的有道理（（~~
by TimSwn090306 @ 2024-02-09 18:09:33
~~那无解输出什么~~
by lelaimc @ 2024-04-17 13:53:08