	ID	题目显示标签隐藏标签	AC / 尝试	难度
	7209	P3C Tic-tac-toe brute force games implementation *1800	0 / 0	(无)
	7207	P4A Watermelon brute force math *800	0 / 0	(无)
	7198	P6A Triangle brute force geometry *900	0 / 0	(无)
	7195	P6D Lizards and Basements 2 brute force dp *2600	0 / 0	(无)
	7193	P7A Kalevitch and Chess brute force constructive algorithms *1100	0 / 0	(无)
	7182	P9B Running Student brute force geometry implementation *1200	0 / 0	(无)
	7181	P9C Hexadecimal's Numbers brute force implementation math *1200	0 / 0	(无)
	7156	P14C Four Segments brute force constructive algorithms geometry implementation math *1700	0 / 0	(无)
	7143	P17A Noldbach problem brute force math number theory *1000	0 / 0	(无)
	7138	P18A Triangle brute force geometry *1500	0 / 0	(无)
	7137	P18B Platforms brute force math *1700	0 / 0	(无)
	7135	P18D Seller Bob brute force dp greedy *2000	0 / 0	(无)
	7121	P22A Second Order Statistics brute force *800	0 / 0	(无)
	7120	P22B Bargaining Table brute force dp *1500	0 / 0	(无)
	7116	P23A You're Given a String... brute force greedy *1200	0 / 0	(无)
	7106	P25A IQ test brute force *1300	0 / 0	(无)
	7095	P27B Tournament bitmasks brute force dfs and similar greedy *1300	0 / 0	(无)
	7092	P27E Number With The Given Amount Of Divisors brute force dp number theory *2000	0 / 0	(无)
	7086	P29A Spit Problem brute force *1000	0 / 0	(无)
	7081	P30A Accounting brute force math *1400	0 / 0	(无)
	7071	P32A Reconnaissance brute force *800	0 / 0	(无)
	7057	P34E Collisions brute force implementation math *2000	0 / 0	(无)
	7054	P35C Fire Again brute force dfs and similar shortest paths *1500	0 / 0	(无)
	7040	P38B Chess brute force implementation math *1200	0 / 0	(无)
	7039	P38C Blinds brute force *1400	0 / 0	(无)
	7016	P41B Martian Dollar brute force *1400	0 / 0	(无)
	7010	P42C Safe cracking brute force constructive algorithms *2200	0 / 0	(无)
	7004	P43D Journey brute force constructive algorithms implementation *2000	0 / 0	(无)
	7003	P43E Race brute force implementation two pointers *2300	0 / 0	(无)
	6994	P44I Toys brute force combinatorics *2300	0 / 0	(无)
	6982	P46A Ball Game brute force implementation *800	0 / 0	(无)
	6975	P47A Triangular numbers brute force math *800	0 / 0	(无)
	6972	P47D Safe brute force *2200	0 / 0	(无)
	6969	P48B Land Lot brute force implementation *1200	0 / 0	(无)
	6959	P49D Game brute force dp implementation *1800	0 / 0	(无)
	6935	P54D Writing a Song brute force dp strings *2100	0 / 0	(无)
	6932	P55B Smallest number brute force *1600	0 / 0	(无)
	6916	P58C Trees brute force *1800	0 / 0	(无)
	6906	P60C Mushroom Strife brute force dfs and similar *2100	0 / 0	(无)
	6905	P60D Savior brute force dsu math *2500	0 / 0	(无)
	6891	P63C Bulls and Cows brute force implementation *1700	0 / 0	(无)
	6884	P64E Prime Segment special problem brute force 1800	0 / 0	(无)
	6878	P65B Harry Potter and the History of Magic brute force greedy implementation *1700	0 / 0	(无)
	6876	P65D Harry Potter and the Sorting Hat brute force dfs and similar hashing *2200	0 / 0	(无)
	6873	P66B Petya and Countryside brute force implementation *1100	0 / 0	(无)
	6862	P68C Synchrophasotron brute force *2200	0 / 0	(无)
	6846	P71D Solitaire brute force implementation *2200	0 / 0	(无)
	6840	P72E Ali goes shopping special problem brute force strings 1800	0 / 0	(无)
	6830	P73F Plane of Tanks brute force geometry *2900	0 / 0	(无)
	6813	P77A Heroes brute force implementation *1400	0 / 0	(无)
	6798	P80A Panoramix's Prediction brute force *800	0 / 0	(无)
	6776	P85D Sum of Medians binary search brute force data structures implementation *2300	0 / 0	(无)
	6770	P86E Long sequence brute force math matrices *2700	0 / 0	(无)
	6764	P88A Chord brute force implementation *1200	0 / 0	(无)
	6760	P89C Chip Play brute force data structures implementation *2300	0 / 0	(无)
	6746	P93C Azembler brute force implementation *2500	0 / 0	(无)
	6735	P96B Lucky Numbers (easy) binary search bitmasks brute force *1300	0 / 0	(无)
	6734	P97A Domino brute force implementation *2400	0 / 0	(无)
	6731	P97D Robot in Basement bitmasks brute force implementation *2700	0 / 0	(无)
	6729	P98A Help Victoria the Wise brute force implementation *1700	0 / 0	(无)
	6707	P102A Clothes brute force *1200	0 / 0	(无)
	6702	P103D Time to Raid Cowavans brute force data structures sortings *2100	0 / 0	(无)
	6698	P105B Dark Assembly brute force probabilities *1800	0 / 0	(无)
	6697	P105C Item World brute force implementation sortings *2200	0 / 0	(无)
	6696	P105D Entertaining Geodetics brute force dsu implementation *2700	0 / 0	(无)
	6695	P105E Lift and Throw brute force *2500	0 / 0	(无)
	6693	P106B Choosing Laptop brute force implementation *1000	0 / 0	(无)
	6691	P106D Treasure Island brute force implementation *1700	0 / 0	(无)
	6682	P109A Lucky Sum of Digits brute force implementation *1000	0 / 0	(无)
	6681	P109B Lucky Probability brute force probabilities *1900	0 / 0	(无)
	6678	P109E Lucky Interval brute force math *2700	0 / 0	(无)
	6667	P113B Petr# brute force data structures hashing strings *2000	0 / 0	(无)
	6666	P113C Double Happiness brute force math number theory *2200	0 / 0	(无)
	6662	P114B PFAST Inc. bitmasks brute force graphs *1500	0 / 0	(无)
	6653	P117B Very Interesting Game brute force number theory *1800	0 / 0	(无)
	6647	P118C Fancy Number brute force greedy sortings strings *1900	0 / 0	(无)
	6639	P120A Elevator brute force implementation math *1000	0 / 0	(无)
	6636	P120D Three Sons brute force *1400	0 / 0	(无)
	6627	P121C Lucky Permutation brute force combinatorics number theory *1900	0 / 0	(无)
	6624	P122A Lucky Division brute force number theory *1000	0 / 0	(无)
	6623	P122B Lucky Substring brute force implementation *1000	0 / 0	(无)
	6616	P124B Permutations brute force combinatorics implementation *1400	0 / 0	(无)
	6610	P126A Hot Bath binary search brute force math *1900	0 / 0	(无)
	6606	P126E Pills brute force flows *2900	0 / 0	(无)
	6602	P128B String brute force constructive algorithms hashing implementation string suffix structures strings *2100	0 / 0	(无)
	6597	P129B Students and Shoelaces brute force dfs and similar graphs implementation *1200	0 / 0	(无)
	6573	P134A Average Numbers brute force implementation *1200	0 / 0	(无)
	6572	P134B Pairs of Numbers brute force dfs and similar math number theory *1900	0 / 0	(无)
	6569	P135B Rectangle and Square brute force geometry math *1600	0 / 0	(无)
	6567	P135D Cycle brute force dfs and similar implementation *2500	0 / 0	(无)
	6554	P138E Hellish Constraints brute force dp two pointers *2900	0 / 0	(无)
	6550	P140B New Year Cards brute force greedy implementation *1800	0 / 0	(无)
	6540	P142A Help Farmer brute force math *1600	0 / 0	(无)
	6538	P142C Help Caretaker brute force dp *2300	0 / 0	(无)
	6535	P143A Help Vasilisa the Wise 2 brute force math *1000	0 / 0	(无)
	6522	P146B Lucky Mask brute force implementation *1300	0 / 0	(无)
	6499	P152D Frames brute force *2600	0 / 0	(无)
	6487	P155A I_love_%username% brute force *800	0 / 0	(无)
	6485	P156A Message brute force *1700	0 / 0	(无)
	6481	P156E Mrs brute force dp *3000	0 / 0	(无)

HGNU

根据当前过滤条件随机选择一道题

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开发与维护

杨旭龙、王树淳、王国斌、宋文宇、朱天伦

特别鸣谢

肖飞、关玉蓉、魏银珍、周芬

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