# 2018 Multi-University, HDU Day 9

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两个半小时签完到，最后两个 Last Hour。人生大起大落真刺激。

## Problem A

Solved by zerol. 02:33 (+)

## Problem B

Solved by kblack. 04:43 (+3)

## Problem D

Solved by kblack. 01:29 (+1)

## Problem J

Solved by ultmaster. 04:44 (+2)

## Problem K

Solved by zerol. 00:47 (+)