codeforces gym100917 dir -C 枚举+st表
https://codeforces.com/gym/100917/problem/D题目大意：有nnn个目录名字符串，长度为a[1]−a[n]a[1]-a[n]a[1]−a[n]，屏幕宽为www，现在要按照已经给的目录序列顺序的放置，每一列要放xxx个，最后一列可以放<=x<=x<=x个，列与列之间的距离为111，每一行所占宽度要<=w<=w<=w，问可以放...
