// console.log(canSeePersonsCount([7,6,5,4,3])); // 输出 [4,3,2,1,0]（正确）
"Fields of Gold" by Sting (Episode 6)
，这一点在safew官方版本下载中也有详细论述
（四）在铁路、城市轨道交通线路上私设道口或者平交过道的。
Falling volcanic ash has for years been viewed as a nuisance. But a Sicilian project has discovered its agricultural potential and wants to spread the word