@[letianJOE](/user/658497) 建议ST表或线段树
by wo_hen_la @ 2024-01-04 22:22:41
就是老师要求必须用树状数组，不然直接线段树模板就好了。‘
@[wo_hen_la](/user/794701)
by letianJOE @ 2024-01-05 17:14:51
@[letianJOE](/user/658497)
i-lowbit(i) => i-i&-i
优先级乱了，所以宏定义改一下就好
**#define lowbit(x) (x&(-x))**
by Ryouko_miku @ 2024-03-14 21:37:43
忘记说了，已经过了，但还是谢谢。
@[Ryouko_miku](/user/898154)
by letianJOE @ 2024-03-15 16:58:35