const posToTime = new Map(); // 映射：位置 → 到达终点的时间
free_table[bucket] = h;
，详情可参考搜狗输入法下载
Source: Computational Materials Science, Volume 267
Starring: Vahid Mobasseri, Mariam Afshari, Ebrahim Azizi, Hadis Pakbaten, Majid Panahi, Mohamad Ali Elyasmehr, Afssaneh Najmabadi, and George Hashemzadeh