combinatorics - Problem Set - 追梦算法网

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	4117	P815B Karen and Test brute force combinatorics constructive algorithms math *2200	0 / 0	(None)
	4115	P815D Karen and Cards binary search combinatorics data structures geometry *2800	0 / 0	(None)
	4110	P817B Makes And The Product combinatorics implementation math sortings *1500	0 / 0	(None)
	4062	P830D Singer House combinatorics dp graphs trees *2800	0 / 0	(None)
	4050	P833C Ever-Hungry Krakozyabra brute force combinatorics greedy math *2700	0 / 0	(None)
	4034	P837F Prefix Sums binary search brute force combinatorics math matrices *2400	0 / 0	(None)
	4023	P839D Winter is here combinatorics dp math number theory *2200	0 / 0	(None)
	4021	P840A Leha and Function combinatorics greedy math number theory sortings *1300	0 / 0	(None)
	4019	P840C On the Bench combinatorics dp *2500	0 / 0	(None)
	4003	P844B Rectangles combinatorics math *1300	0 / 0	(None)
	3973	P848D Shake It! combinatorics dp flows graphs *2900	0 / 0	(None)
	3972	P848E Days of Floral Colours combinatorics divide and conquer dp fft math *3400	0 / 0	(None)
	3956	P852F Product transformation combinatorics math number theory *2200	0 / 0	(None)
	3936	P856C Eleventh Birthday combinatorics dp math *2400	0 / 0	(None)
	3922	P859E Desk Disorder combinatorics dfs and similar dsu graphs trees *2100	0 / 0	(None)
	3893	P865G Flowers and Chocolate combinatorics math matrices *3300	0 / 0	(None)
	3882	P869C The Intriguing Obsession combinatorics dp math *1800	0 / 0	(None)
	3863	P875D High Cry binary search bitmasks combinatorics data structures divide and conquer *2200	0 / 0	(None)
	3848	P878E Numbers on the blackboard combinatorics dp *3300	0 / 0	(None)
	3822	P886E Maximum Element combinatorics dp math *2400	0 / 0	(None)

Pick a problem randomly based on the current filter.