题库 - combinatorics - HydroOJ

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	5026	P478B Random Teams combinatorics constructive algorithms greedy math *1300	0 / 0	4
	5017	P479E Riding in a Lift combinatorics dp *1900	1 / 2	6
	5011	P482D Random Function and Tree combinatorics dp trees *2700	0 / 0	10
	4985	P489D Unbearable Controversy of Being brute force combinatorics dfs and similar graphs *1700	0 / 0	5
	4983	P489F Special Matrices combinatorics dp *2100	0 / 0	7
	4939	P500D New Year Santa Network combinatorics dfs and similar graphs trees *1900	0 / 0	6
	4931	P501E Misha and Palindrome Degree binary search combinatorics implementation *2500	0 / 0	9
	4922	P506E Mr combinatorics dp matrices strings *3000	0 / 0	10
	4869	P518D Ilya and Escalator combinatorics dp math probabilities *1700	5 / 9	5
	4867	P518F Pasha and Pipe binary search brute force combinatorics dp implementation *2300	0 / 0	8
	4857	P520E Pluses everywhere combinatorics dp math number theory *2200	0 / 0	8
	4797	P535B Tavas and SaDDas bitmasks brute force combinatorics implementation *1100	0 / 0	3
	4753	P547C Mike and Foam bitmasks combinatorics dp math number theory *2300	0 / 0	8
	4733	P551D GukiZ and Binary Operations combinatorics implementation math matrices number theory *2100	0 / 0	7
	4727	P552D Vanya and Triangles brute force combinatorics data structures geometry math sortings *1900	0 / 0	6
	4725	P553A Kyoya and Colored Balls combinatorics dp math *1500	1 / 1	5
	4724	P553B Kyoya and Permutation binary search combinatorics constructive algorithms greedy implementation math *1900	0 / 0	6
	4708	P557D Vitaly and Cycle combinatorics dfs and similar graphs math *2000	0 / 0	7
	4699	P559C Gerald and Giant Chess combinatorics dp math number theory *2200	1 / 8	8
	4698	P559D Randomizer combinatorics geometry probabilities *2800	0 / 0	10
	4680	P568B Symmetric and Transitive combinatorics dp math *1900	0 / 0	6
	4670	P570E Pig and Palindromes combinatorics dp *2300	0 / 0	8
	4669	P571A Lengthening Sticks combinatorics implementation math *2100	1 / 1	7
	4648	P575H Bots combinatorics number theory *1800	0 / 0	6
	4640	P577B Modulo Sum combinatorics data structures dp two pointers *1900	1 / 6	6
	4611	P584B Kolya and Tanya combinatorics *1500	0 / 0	5
	4603	P585E Present for Vitalik the Philatelist combinatorics math number theory *2900	0 / 0	10
	4565	P596C Wilbur and Points combinatorics greedy sortings *1700	0 / 0	5
	4534	P603B Moodular Arithmetic combinatorics dfs and similar dsu math number theory *1800	0 / 0	6
	4514	P608B Hamming Distance Sum combinatorics strings *1500	1 / 2	5
	4507	P610A Pasha and Stick combinatorics math *1000	0 / 0	3
	4488	P612E Square Root of Permutation combinatorics constructive algorithms dfs and similar graphs math *2200	0 / 0	8
	4467	P617B Chocolate combinatorics *1300	0 / 0	4
	4449	P621B Wet Shark and Bishops combinatorics implementation *1300	0 / 0	4
	4448	P621C Wet Shark and Flowers combinatorics math number theory probabilities *1700	0 / 0	5
	4435	P623E Transforming Sequence combinatorics dp fft math *3300	2 / 2	10
	4424	P626D Jerry's Protest brute force combinatorics dp probabilities *1800	0 / 0	6
	4408	P629A Far Relative’s Birthday Cake brute force combinatorics constructive algorithms implementation *800	2 / 2	3
	4404	P629E Famil Door and Roads combinatorics data structures dfs and similar dp probabilities trees *2300	0 / 0	8
	4401	P630C Lucky Numbers combinatorics math *1100	1 / 1	3
	4398	P630F Selection of Personnel combinatorics math *1300	1 / 1	4
	4397	P630G Challenge Pennants combinatorics math *1600	1 / 1	5
	4396	P630H Benches combinatorics math *1400	1 / 1	4
	4395	P630I Parking Lot combinatorics math *1700	1 / 1	5
	4328	P645F Cowslip Collections combinatorics math number theory *2500	0 / 0	9
	4317	P652C Foe Pairs combinatorics sortings two pointers *1800	0 / 0	6
	4307	P653G Move by Prime combinatorics math number theory *3100	0 / 0	10
	4292	P659G Fence Divercity combinatorics dp number theory *2300	0 / 0	8
	4287	P660E Different Subsets For All Tuples combinatorics *2300	1 / 1	8
	4262	P666C Codeword combinatorics strings *2500	0 / 0	9

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