先刷一波線段樹吧

1.hdu 1166 敵兵佈陣

2.hdu 1754 I Hate It

3.hdu 1698 Just a Hook

4.hdu 1394 Minimum Inversion Number

5.pku 2777 Count Color

6.pku 3468 A Simple Problem with Integers

7.pku 2528 Mayor's posters

8.hdu 2795 Billboard

9.pku 3667 Hotel

10.hdu 1540 Tunnel Warfare

11.hdu 2871 Memory Control

12.hdu 3016 Man Down

13.hdu 1542 Atlantis

14.hdu 1255 覆蓋的面積

15.hdu 1828 Picture

16.pku 1436 Horizontally Visible Segments

17.pku 3225 Help with Intervals

18.pku 2482 Stars in Your Window

19.pku 2828 Buy Tickets

20.pku 2464 Brownie Points II