题库 - HydroOJ

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	6241	P189A Cut Ribbon brute force dp *1300	2 / 2	4
	6240	P189B Counting Rhombi brute force math *1300	0 / 0	4
	6238	P190A Vasya and the Bus greedy math *1100	0 / 0	3
	6237	P190B Surrounded geometry *1800	0 / 0	6
	6235	P190C STL dfs and similar *1500	0 / 0	5
	6234	P190D Non-Secret Cypher two pointers *1900	0 / 0	6
	6232	P190E Counter Attack data structures dsu graphs hashing sortings *2100	0 / 0	7
	6231	P191A Dynasty Puzzles dp *1500	0 / 0	5
	6229	P191B Demonstration greedy *1700	0 / 0	5
	6228	P191C Fools and Roads data structures dfs and similar trees *1900	0 / 14	6
	6226	P191D Metro Scheme graphs greedy *2700	0 / 0	10
	6224	P191E Thwarting Demonstrations binary search data structures trees *2200	0 / 0	8
	6223	P192A Funky Numbers binary search brute force implementation *1300	0 / 0	4
	6221	P192B Walking in the Rain brute force implementation *1100	0 / 0	3
	6220	P193A Cutting Figure constructive algorithms graphs trees *1700	1 / 1	5
	6218	P193B Xor brute force *2000	0 / 0	7
	6216	P193C Hamming Distance constructive algorithms greedy math matrices *2400	0 / 0	9
	6131	P193D Two Segments data structures *2900	0 / 0	10
	6130	P193E Fibonacci Number brute force math matrices *2900	0 / 0	10
	6215	P194A Exams implementation math *900	1 / 1	3
	6213	P194B Square math *1200	0 / 0	4
	6212	P195A Let's Watch Football binary search brute force math *1000	0 / 0	3
	6209	P195B After Training data structures implementation math *1300	0 / 0	4
	6210	P195C Try and Catch expression parsing implementation *1800	0 / 0	6
	6207	P195D Analyzing Polyline geometry math sortings *1900	0 / 0	6
	6206	P195E Building Forest data structures dsu graphs *2000	0 / 0	7
	6204	P196A Lexicographically Maximum Subsequence greedy strings *1100	0 / 0	3
	6203	P196B Infinite Maze dfs and similar graphs *2000	0 / 0	7
	6201	P196C Paint Tree constructive algorithms divide and conquer geometry sortings trees *2200	0 / 0	8
	6200	P196D The Next Good String data structures greedy hashing strings *2800	0 / 0	10
	6198	P196E Opening Portals dsu graphs shortest paths *2600	0 / 0	10
	6197	P197A Plate Game constructive algorithms games math *1600	0 / 0	5
	6195	P197B Limit math *1400	0 / 0	4
	6194	P198A About Bacteria implementation math *1700	0 / 0	5
	6192	P198B Jumping on Walls shortest paths *1400	0 / 0	4
	6190	P198C Delivering Carcinogen binary search geometry *2400	0 / 0	9
	6189	P198D Cube Snake constructive algorithms *2700	0 / 0	10
	6187	P198E Gripping Story binary search data structures sortings *2400	0 / 0	9
	6186	P199A Hexadecimal's theorem brute force constructive algorithms implementation number theory *900	0 / 0	3
	6184	P199B Special Olympics geometry *1900	0 / 0	6
	6183	P200A Cinema brute force data structures *2400	0 / 0	9
	6181	P200B Drinks implementation math *800	0 / 0	3
	6180	P200C Football Championship brute force implementation *1800	0 / 0	6
	6178	P200D Programming Language binary search brute force expression parsing implementation *1800	0 / 0	6
	6176	P200E Tractor College implementation math number theory ternary search *2400	0 / 0	9
	6175	P201A Clear Symmetry constructive algorithms dp math *1700	0 / 0	5
	6173	P201B Guess That Car! math ternary search *1800	0 / 0	6
	6172	P201C Fragile Bridges dp *2000	0 / 0	7
	6170	P201D Brand New Problem bitmasks brute force dp *2600	0 / 0	10
	6169	P201E Thoroughly Bureaucratic Organization binary search combinatorics *2600	0 / 0	10

根据当前过滤条件随机选择一道题