Elysialr @ 2024-10-15 14:47:57
90pts: 快读快写
50pts：
1.负无穷设为longlong负无穷即-(1<<60)或-(1e18+1)
2.快读快写开longlong
10pts:
1.传加标记时，如果有子节点有赋值标记，要给赋值标记加
2.op=1,op=2不能写反
3.查找函数返回值初始值设为负无穷
by DLDZD @ 2024-10-15 16:15:58
@Elysialr 收到
by liuzhengtao @ 2024-10-21 22:58:47
太感动了，必须关注，谢谢