@[oier03](/user/730195) 帮你看一下，首先记leftsonsum和rightsonsum干啥。。直接只记当前点的sum不就行了嘛
by Suffix_Sum @ 2024-03-01 16:39:36
艹你这马蜂我都不想调了，等你把这玩意改成sum可以@我
by Suffix_Sum @ 2024-03-01 16:41:48
@[Suffix_Sum](/user/326797) <https://www.luogu.com.cn/paste/vr27l4s8> 改好了
by oier03 @ 2024-03-01 16:50:21
@[oier03](/user/730195) 哥们，你pushup都没改。。
by Suffix_Sum @ 2024-03-01 16:56:14
@[oier03](/user/730195) 可能索菲克萨姆没说清楚，他是让你调一下写法，每个节点只用记录它的左右儿子编号和它自己的子树和、子树节点数和
儿子的和不需要在父节点记录
by sunrise1024 @ 2024-03-01 17:00:13
过几天吧，回家省选去了
by Suffix_Sum @ 2024-03-01 17:08:11