```d=log(y-x+1)/log(2)```
by dayux @ 2020-08-19 23:30:46
@[黑虎阿福](/user/175801) `y=x`的时候你`log(0)`是smg啊，而且u1s1是`log(y-x+1)`吧qwq
by Shots @ 2020-08-19 23:44:47
谢谢大佬指导
by 黑虎阿福 @ 2020-08-20 00:06:10