速度瓶颈在`find`函数调用次数多而又死慢上
考虑用hash将`find`优化到log级
by Forgotten_0x1328FB6 @ 2024-04-24 20:53:00
@[Forgotten_0x1328FB6](/user/89343) 大佬能给下代码吗验证码（642b）
by smile_jyc @ 2024-04-24 20:57:31
@[smile_jyc](/user/1246532)
数据范围呢
by Forgotten_0x1328FB6 @ 2024-04-24 21:00:24
n<=$10^{10}$ @[Forgotten_0x1328FB6](/user/89343)
by smile_jyc @ 2024-04-24 21:02:05
@[smile_jyc](/user/1246532) 先收集数字从小到大排序然后dfs个全排列就好了啊
by Special_Tony @ 2024-04-24 21:19:19