	ID	题目显示标签隐藏标签	AC / 尝试	难度
	894	P1395C Boboniu and Bit Operations bitmasks brute force dp greedy *1600	0 / 0	(无)
	893	P1396A Multiples of Length constructive algorithms greedy number theory *1600	0 / 0	(无)
	892	P1396B Stoned Game brute force constructive algorithms games greedy *1800	0 / 0	(无)
	891	P1396C Monster Invaders dp greedy implementation *2300	0 / 0	(无)
	890	P1396D Rainbow Rectangles data structures sortings two pointers *3300	0 / 0	(无)
	889	P1396E Distance Matching constructive algorithms dfs and similar trees *3200	0 / 0	(无)
	888	P1397A Juggling Letters greedy strings *800	0 / 0	(无)
	887	P1397B Power Sequence brute force math number theory sortings *1500	0 / 0	(无)
	886	P1398A Bad Triangle geometry math *800	0 / 0	(无)
	885	P1398B Substring Removal Game games greedy sortings *800	0 / 0	(无)
	884	P1398C Good Subarrays data structures dp math *1600	0 / 0	(无)
	883	P1398D Colored Rectangles dp greedy sortings *1800	0 / 0	(无)
	882	P1398E Two Types of Spells binary search data structures greedy implementation math sortings *2200	0 / 0	(无)
	881	P1398F Controversial Rounds binary search data structures dp greedy two pointers *2500	0 / 0	(无)
	880	P1398G Running Competition bitmasks fft math number theory *2600	0 / 0	(无)
	879	P1399A Remove Smallest greedy sortings *800	0 / 0	(无)
	878	P1399B Gifts Fixing greedy *800	0 / 0	(无)
	877	P1399C Boats Competition brute force greedy two pointers *1200	0 / 0	(无)
	876	P1399D Binary String To Subsequences constructive algorithms data structures greedy implementation *1500	0 / 0	(无)
	875	P1399E1 Weights Division (easy version) data structures dfs and similar greedy trees *2000	0 / 0	(无)
	874	P1399E2 Weights Division (hard version) binary search dfs and similar greedy sortings trees two pointers *2200	0 / 0	(无)
	873	P1399F Yet Another Segments Subset data structures dp graphs sortings *2300	0 / 0	(无)
	872	P1400A String Similarity constructive algorithms strings *800	0 / 0	(无)
	871	P1400B RPG Protagonist brute force greedy math *1700	0 / 0	(无)
	870	P1400C Binary String Reconstruction 2-sat brute force constructive algorithms greedy *1500	0 / 0	(无)
	869	P1400D Zigzags brute force combinatorics data structures math two pointers *1900	0 / 0	(无)
	868	P1400E Clear the Multiset data structures divide and conquer dp greedy *2200	0 / 0	(无)
	867	P1400F x-prime Substrings brute force dfs and similar dp string suffix structures strings *2800	0 / 0	(无)
	866	P1400G Mercenaries bitmasks brute force combinatorics dp dsu math two pointers *2600	0 / 0	(无)
	865	P1401A Distance and Axis constructive algorithms math *900	0 / 0	(无)
	864	P1401B Ternary Sequence constructive algorithms greedy math *1100	0 / 0	(无)
	863	P1401C Mere Array constructive algorithms math number theory sortings *1300	0 / 0	(无)
	862	P1401D Maximum Distributed Tree dfs and similar dp greedy implementation math number theory sortings trees *1800	0 / 0	(无)
	861	P1401E Divide Square data structures geometry implementation sortings *2400	0 / 0	(无)
	860	P1401F Reverse and Swap binary search bitmasks data structures *2400	0 / 0	(无)
	859	P1402A Fancy Fence special problem data structures dsu implementation math sortings 1800	0 / 0	(无)
	858	P1402B Roads special problem geometry sortings 2900	0 / 0	(无)
	857	P1402C Star Trek special problem combinatorics dfs and similar dp games graphs matrices trees 2600	0 / 0	(无)
	856	P1403A The Potion of Great Power special problem 2-sat binary search data structures graphs interactive sortings two pointers 2400	0 / 0	(无)
	855	P1403B Spring cleaning special problem data structures dfs and similar graphs trees 2300	0 / 0	(无)
	854	P1403C Chess Rush special problem combinatorics dp implementation math 3200	0 / 0	(无)
	853	P1404A Balanced Bitstring implementation strings *1500	0 / 0	(无)
	852	P1404B Tree Tag dfs and similar dp games trees *1900	0 / 0	(无)
	851	P1404C Fixed Point Removal binary search constructive algorithms data structures greedy two pointers *2300	0 / 0	(无)
	850	P1404D Game of Pairs constructive algorithms dfs and similar interactive math number theory *2800	0 / 0	(无)
	849	P1404E Bricks flows graph matchings graphs *2800	0 / 0	(无)
	848	P1405A Permutation Forgery constructive algorithms *800	0 / 0	(无)
	847	P1405B Array Cancellation constructive algorithms implementation *1000	0 / 0	(无)
	846	P1406A Subset Mex greedy implementation math *900	0 / 0	(无)
	845	P1406B Maximum Product brute force dp greedy implementation sortings *1200	0 / 0	(无)
	844	P1406C Link Cut Centroids constructive algorithms dfs and similar graphs trees *1700	0 / 0	(无)
	843	P1406D Three Sequences constructive algorithms data structures greedy math *2200	0 / 0	(无)
	842	P1406E Deleting Numbers interactive math number theory *2600	0 / 0	(无)
	841	P1407A Ahahahahahahahaha constructive algorithms math *1100	0 / 0	(无)
	840	P1407B Big Vova brute force greedy math number theory *1300	0 / 0	(无)
	839	P1407C Chocolate Bunny constructive algorithms interactive math two pointers *1600	0 / 0	(无)
	838	P1407D Discrete Centrifugal Jumps data structures dp graphs *2200	0 / 0	(无)
	837	P1407E Egor in the Republic of Dagestan constructive algorithms dfs and similar dp graphs greedy shortest paths *2500	0 / 0	(无)
	836	P1408A Circle Coloring constructive algorithms *800	0 / 0	(无)
	835	P1408B Arrays Sum constructive algorithms greedy math *1400	0 / 0	(无)
	834	P1408C Discrete Acceleration binary search dp implementation math two pointers *1500	0 / 0	(无)
	833	P1408D Searchlights binary search brute force data structures dp implementation sortings two pointers *2000	0 / 0	(无)
	832	P1408E Avoid Rainbow Cycles data structures dsu graphs greedy sortings trees *2400	0 / 0	(无)
	831	P1408F Two Different constructive algorithms divide and conquer *2300	0 / 0	(无)
	830	P1408G Clusterization Counting combinatorics dp dsu fft graphs trees *2700	0 / 0	(无)
	829	P1408H Rainbow Triples binary search data structures flows greedy *3300	0 / 0	(无)
	828	P1408I Bitwise Magic dp math *3200	0 / 0	(无)
	827	P1409A Yet Another Two Integers Problem greedy math *800	0 / 0	(无)
	826	P1409B Minimum Product brute force greedy math *1100	0 / 0	(无)
	825	P1409C Yet Another Array Restoration brute force math number theory *1200	0 / 0	(无)
	824	P1409D Decrease the Sum of Digits greedy math *1500	0 / 0	(无)
	823	P1409E Two Platforms binary search dp sortings two pointers *1800	0 / 0	(无)
	822	P1409F Subsequences of Length Two dp strings *2100	0 / 0	(无)
	821	P1411A In-game Chat implementation *800	0 / 0	(无)
	820	P1411B Fair Numbers brute force number theory *1000	0 / 0	(无)
	819	P1411C Peaceful Rooks dfs and similar dsu graphs *1700	0 / 0	(无)
	818	P1411D Grime Zoo brute force greedy implementation strings *2100	0 / 0	(无)
	817	P1411E Poman Numbers bitmasks greedy math strings *2300	0 / 0	(无)
	816	P1411F The Thorny Path greedy math *3000	0 / 0	(无)
	815	P1411G No Game No Life bitmasks games math matrices *2700	0 / 0	(无)
	814	P1413A Finding Sasuke constructive algorithms math *800	0 / 0	(无)
	813	P1413B A New Technique implementation *1100	0 / 0	(无)
	812	P1413C Perform Easily binary search brute force dp implementation sortings two pointers *1900	0 / 0	(无)
	811	P1413D Shurikens data structures greedy implementation *1700	0 / 0	(无)
	810	P1413E Solo mid Oracle greedy math ternary search *2100	0 / 0	(无)
	809	P1413F Roads and Ramen data structures trees *2800	0 / 0	(无)
	808	P1415A Prison Break brute force math *800	0 / 0	(无)
	807	P1415B Repainting Street brute force brute force greedy *1100	0 / 0	(无)
	806	P1415C Bouncing Ball brute force dp implementation *1400	0 / 0	(无)
	805	P1415D XOR-gun bitmasks brute force constructive algorithms *2000	0 / 0	(无)
	804	P1415E New Game Plus! constructive algorithms greedy math *2200	0 / 0	(无)
	803	P1415F Cakes for Clones dp *2900	0 / 0	(无)
	802	P1416A k-Amazing Numbers binary search data structures implementation two pointers *1500	0 / 0	(无)
	801	P1416B Make Them Equal constructive algorithms greedy math *2000	0 / 0	(无)
	800	P1416C XOR Inverse bitmasks data structures divide and conquer dp greedy math sortings strings trees *2000	0 / 0	(无)
	799	P1416D Graph and Queries data structures dsu graphs implementation trees *2600	0 / 0	(无)
	798	P1416E Split binary search data structures dp greedy *3200	0 / 0	(无)
	797	P1416F Showing Off flows graph matchings greedy implementation *3300	0 / 0	(无)
	796	P1417A Copy-paste greedy math *800	0 / 0	(无)
	795	P1417B Two Arrays greedy math sortings *1100	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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