如图,路径为 $18 \rightarrow 2 \rightarrow 9 \rightarrow 7 \rightarrow 15 \rightarrow 18 \rightarrow 4$,收益为 $73 - 6 = 67$
by panda_2134 @ 2018-04-17 20:44:52
提醒:是 $n \le 10^5$,而非部分分的 $n \le 10^4$
by panda_2134 @ 2018-04-18 08:39:50
有用,感谢!!!
by 2002chenhan @ 2018-10-11 19:34:02
原来是从(0,1)开始啊,谢谢巨佬
by OuOu2021 @ 2018-12-16 11:38:58