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	#	Name	TopCoder	AC Ratio (user)	AC (submission)
	1986	郵局設置問題 $\infty$EXTREME DP-optimization DP		77.5% (31/40)	15.1% (181/1197)
	2001	闖關遊戲 CKcon 2018-CKcon-sup DP-optimization DP		77.8% (14/18)	16.0% (46/287)