	ID	题目显示标签隐藏标签	AC / 尝试	难度
	694	P1433F Zero Remainder Sum dp *2100	0 / 0	(无)
	693	P1433G Reducing Delivery Cost brute force graphs shortest paths *2100	0 / 0	(无)
	692	P1434E A Convex Game dsu games *3500	0 / 0	(无)
	691	P1436A Reorder math *800	0 / 0	(无)
	690	P1436B Prime Square constructive algorithms math *900	0 / 0	(无)
	689	P1436C Binary Search binary search combinatorics *1500	0 / 0	(无)
	688	P1436D Bandit in a City binary search dfs and similar graphs greedy trees *1900	0 / 0	(无)
	687	P1436E Complicated Computations binary search data structures two pointers *2400	0 / 0	(无)
	686	P1436F Sum Over Subsets combinatorics math number theory *2800	0 / 0	(无)
	685	P1437A Marketing Scheme brute force constructive algorithms greedy math *800	0 / 0	(无)
	684	P1437B Reverse Binary Strings constructive algorithms greedy *1200	0 / 0	(无)
	683	P1437C Chef Monocarp dp flows graph matchings greedy math sortings *1800	0 / 0	(无)
	682	P1437D Minimal Height Tree graphs greedy shortest paths trees *1600	0 / 0	(无)
	681	P1437E Make It Increasing binary search constructive algorithms data structures dp implementation *2200	0 / 0	(无)
	680	P1437F Emotional Fishermen combinatorics dp math two pointers *2600	0 / 0	(无)
	679	P1437G Death DBMS data structures string suffix structures strings trees *2600	0 / 0	(无)
	678	P1438A Specific Tastes of Andre constructive algorithms implementation *800	0 / 0	(无)
	677	P1438B Valerii Against Everyone constructive algorithms data structures greedy sortings *1000	0 / 0	(无)
	676	P1438C Engineer Artem 2-sat chinese remainder theorem constructive algorithms fft flows *2000	0 / 0	(无)
	675	P1438D Powerful Ksenia bitmasks constructive algorithms math *2200	0 / 0	(无)
	674	P1438E Yurii Can Do Everything binary search bitmasks brute force constructive algorithms divide and conquer two pointers *2500	0 / 0	(无)
	673	P1438F Olha and Igor interactive probabilities trees *3000	0 / 0	(无)
	672	P1439A1 Binary Table (Easy Version) constructive algorithms implementation *1500	0 / 0	(无)
	671	P1439A2 Binary Table (Hard Version) constructive algorithms graphs greedy implementation *1900	0 / 0	(无)
	670	P1439B Graph Subset Problem constructive algorithms data structures graphs *2600	0 / 0	(无)
	669	P1439C Greedy Shopping binary search data structures divide and conquer greedy implementation *2600	0 / 0	(无)
	668	P1439D INOI Final Contests combinatorics dp fft *3100	0 / 0	(无)
	667	P1439E Cheat and Win bitmasks data structures games trees *3500	0 / 0	(无)
	666	P1440A Buy the String implementation math *800	0 / 0	(无)
	665	P1440B Sum of Medians greedy math *900	0 / 0	(无)
	664	P1442A Extreme Subtraction constructive algorithms dp greedy *1800	0 / 0	(无)
	663	P1442B Identify the Operations combinatorics data structures dsu greedy implementation *1800	0 / 0	(无)
	662	P1442C Graph Transpositions dfs and similar graphs greedy shortest paths *2400	0 / 0	(无)
	661	P1442D Sum data structures divide and conquer dp greedy *2800	0 / 0	(无)
	660	P1442E Black, White and Grey Tree binary search constructive algorithms dfs and similar dp greedy trees *3000	0 / 0	(无)
	659	P1442F Differentiating Games games interactive *3400	0 / 0	(无)
	658	P1443A Kids Seating constructive algorithms math *800	0 / 0	(无)
	657	P1443B Saving the City dp greedy math sortings *1300	0 / 0	(无)
	656	P1443C The Delivery Dilemma binary search greedy sortings *1400	0 / 0	(无)
	655	P1443E Long Permutation brute force math two pointers *2400	0 / 0	(无)
	654	P1444A Division brute force math number theory *1500	0 / 0	(无)
	653	P1444B Divide and Sum combinatorics math sortings *1900	0 / 0	(无)
	652	P1444C Team-Building data structures dfs and similar dsu graphs *2500	0 / 0	(无)
	651	P1444D Rectangular Polyline constructive algorithms dp geometry *2900	0 / 0	(无)
	650	P1444E Finding the Vertex brute force dfs and similar dp interactive trees *3500	0 / 0	(无)
	649	P1445A Array Rearrangment greedy sortings *800	0 / 0	(无)
	648	P1445B Elimination greedy math *900	0 / 0	(无)
	647	P1446A Knapsack constructive algorithms greedy sortings *1300	0 / 0	(无)
	646	P1446B Catching Cheaters dp strings *1800	0 / 0	(无)
	645	P1446C Xor Tree binary search bitmasks data structures divide and conquer dp trees *2100	0 / 0	(无)
	644	P1446D1 Frequency Problem (Easy Version) data structures greedy *2600	0 / 0	(无)
	643	P1446D2 Frequency Problem (Hard Version) data structures greedy two pointers *3000	0 / 0	(无)
	642	P1446E Long Recovery constructive algorithms dfs and similar *3500	0 / 0	(无)
	641	P1446F Line Distance binary search data structures geometry *3200	0 / 0	(无)
	640	P1447A Add Candies constructive algorithms math *800	0 / 0	(无)
	639	P1447B Numbers Box greedy math *1000	0 / 0	(无)
	638	P1450A Avoid Trygub constructive algorithms sortings *800	0 / 0	(无)
	637	P1450B Balls of Steel brute force geometry greedy *1000	0 / 0	(无)
	636	P1450C1 Errich-Tac-Toe (Easy Version) constructive algorithms math *2100	0 / 0	(无)
	635	P1450C2 Errich-Tac-Toe (Hard Version) constructive algorithms math *2300	0 / 0	(无)
	634	P1450D Rating Compression binary search data structures greedy implementation two pointers *1800	0 / 0	(无)
	633	P1450E Capitalism constructive algorithms dfs and similar graphs shortest paths *2700	0 / 0	(无)
	632	P1450F The Struggling Contestant constructive algorithms greedy *2400	0 / 0	(无)
	631	P1450G Communism bitmasks dp trees *3500	0 / 0	(无)
	630	P1450H1 Multithreading (Easy Version) combinatorics fft math *2900	0 / 0	(无)
	629	P1450H2 Multithreading (Hard Version) combinatorics implementation math *3300	0 / 0	(无)
	628	P1451A Subtract or Divide greedy math *800	0 / 0	(无)
	627	P1451B Non-Substring Subsequence dp greedy implementation strings *900	0 / 0	(无)
	626	P1451C String Equality dp greedy hashing implementation strings *1400	0 / 0	(无)
	625	P1451D Circle Game games geometry math *1700	0 / 0	(无)
	624	P1451E1 Bitwise Queries (Easy Version) bitmasks constructive algorithms interactive math *2000	0 / 0	(无)
	623	P1451E2 Bitwise Queries (Hard Version) bitmasks constructive algorithms interactive math *2300	0 / 0	(无)
	622	P1451F Nullify The Matrix constructive algorithms games *2700	0 / 0	(无)
	621	P1452A Robot Program math *800	0 / 0	(无)
	620	P1452B Toy Blocks binary search greedy math sortings *1400	0 / 0	(无)
	619	P1452C Two Brackets greedy *800	0 / 0	(无)
	618	P1452D Radio Towers combinatorics dp math *1600	0 / 0	(无)
	617	P1452E Two Editorials brute force dp greedy sortings two pointers *2500	0 / 0	(无)
	616	P1452F Divide Powers constructive algorithms greedy *2900	0 / 0	(无)
	615	P1452G Game On Tree data structures dfs and similar greedy trees *2700	0 / 0	(无)
	614	P1453A Cancel the Trains implementation *800	0 / 0	(无)
	613	P1453B Suffix Operations constructive algorithms implementation *1400	0 / 0	(无)
	612	P1453C Triangles greedy implementation *1700	0 / 0	(无)
	611	P1453D Checkpoints brute force constructive algorithms greedy math probabilities *1900	0 / 0	(无)
	610	P1453E Dog Snacks binary search dfs and similar dp greedy trees *2300	0 / 0	(无)
	609	P1453F Even Harder dp *2700	0 / 0	(无)
	608	P1454A Special Permutation constructive algorithms probabilities *800	0 / 0	(无)
	607	P1454B Unique Bid Auction implementation *800	0 / 0	(无)
	606	P1454C Sequence Transformation greedy implementation *1200	0 / 0	(无)
	605	P1454D Number into Sequence constructive algorithms math number theory *1300	0 / 0	(无)
	604	P1454E Number of Simple Paths combinatorics dfs and similar graphs trees *2000	0 / 0	(无)
	603	P1454F Array Partition binary search data structures greedy two pointers *2100	0 / 0	(无)
	602	P1455A Strange Functions math number theory *800	0 / 0	(无)
	601	P1455B Jumps constructive algorithms math *1200	0 / 0	(无)
	600	P1455C Ping-pong constructive algorithms games math *1100	0 / 0	(无)
	599	P1455D Sequence and Swaps dp greedy sortings *1600	0 / 0	(无)
	598	P1455E Four Points brute force constructive algorithms flows geometry greedy implementation math ternary search *2400	0 / 0	(无)
	597	P1455F String and Operations dp greedy *2800	0 / 0	(无)
	596	P1455G Forbidden Value data structures dp *2900	0 / 0	(无)
	595	P1456E XOR-ranges dp greedy *3500	0 / 0	(无)

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根据当前过滤条件随机选择一道题

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杨旭龙、王树淳、王国斌、宋文宇、朱天伦

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肖飞、关玉蓉、魏银珍、周芬

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