顺序换一下
by tqacyp @ 2021-02-09 17:36:24
$R \to A \to O \to I \to E$
by tqacyp @ 2021-02-09 17:37:24
@[tqacyp](/user/310920) 你可能要按照题目的顺序输出（即先按角分类，再按边分类）
by DWT8125 @ 2021-02-09 18:04:23
@[tqacyp](/user/310920) thankyou
by hgcyy @ 2021-02-10 10:13:01