结构
....\堆(binary).txt
....\堆(mapped).txt
....\子段和.txt
....\子阵和.txt
....\并查集.txt
....\并查集扩展(friend_enemy).txt
....\矩形切割.txt
....\线段树.txt
....\线段树应用.txt
....\线段树扩展.txt