| # | Origin | Name |
|---|---|---|
| A | POJ 1127 | Jack Straws |
| B | POJ 2318 | TOYS |
| C | POJ 2932 | Coneology |
| D | POJ 1228 | Grandpa's Estate |
| E | POJ 2187 | Beauty Contest |
| F | POJ 2451 | Uyuw's Concert |
| G | POJ 1755 | Triathlon |
因为学校 oj 爬不了 hihocoder，建议大家可以去 vjudge 做下今年北京区域赛的一道题 https://vjudge.net/problem/HihoCoder-1633