	ID	题目显示标签隐藏标签	AC / 尝试	难度
	428	P1490B Balanced Remainders brute force constructive algorithms math *1000	0 / 0	(无)
	427	P1490C Sum of Cubes binary search brute force brute force math *1100	0 / 0	(无)
	422	P1491A K-th Largest Value brute force greedy implementation *800	0 / 0	(无)
	421	P1491B Minimal Cost brute force math *1200	0 / 0	(无)
	420	P1491C Pekora and Trampoline brute force data structures dp greedy implementation *1700	0 / 0	(无)
	418	P1491E Fib-tree brute force dfs and similar divide and conquer number theory trees *2400	0 / 0	(无)
	414	P1491I Ruler Of The Zoo brute force data structures *3500	0 / 0	(无)
	409	P1492E Almost Fault-Tolerant Database brute force constructive algorithms dfs and similar greedy implementation *2500	0 / 0	(无)
	407	P1493B Planet Lapituletti brute force implementation *1300	0 / 0	(无)
	406	P1493C K-beautiful Strings binary search brute force constructive algorithms greedy strings *2000	0 / 0	(无)
	405	P1493D GCD of an Array brute force data structures hashing implementation math number theory sortings two pointers *2100	0 / 0	(无)
	402	P1494A ABC String bitmasks brute force implementation *900	0 / 0	(无)
	401	P1494B Berland Crossword bitmasks brute force greedy implementation *1400	0 / 0	(无)
	397	P1494F Delete The Edges brute force constructive algorithms dfs and similar graphs implementation *2900	0 / 0	(无)
	392	P1495E Qingshan and Daniel brute force data structures greedy implementation *3200	0 / 0	(无)
	390	P1496A Split it! brute force constructive algorithms greedy strings *900	0 / 0	(无)
	388	P1497A Meximization brute force data structures greedy sortings *800	0 / 0	(无)
	381	P1498A GCD Sum brute force math *800	0 / 0	(无)
	379	P1498C Planar Reflections brute force data structures dp *1600	0 / 0	(无)
	377	P1498E Two Houses brute force graphs greedy interactive sortings *2200	0 / 0	(无)
	374	P1499B Binary Removals brute force dp greedy implementation *1000	0 / 0	(无)
	373	P1499C Minimum Grid Path brute force data structures greedy math *1500	0 / 0	(无)
	368	P1500A Going Home brute force hashing implementation math *1800	0 / 0	(无)
	367	P1500B Two chandeliers binary search brute force chinese remainder theorem math number theory *2200	0 / 0	(无)
	366	P1500C Matrix Sorting bitmasks brute force constructive algorithms greedy two pointers *2600	0 / 0	(无)
	341	P1506C Double-ended Strings brute force implementation strings *1000	0 / 0	(无)
	337	P1506G Maximize the Remaining String brute force data structures dp greedy strings *2000	0 / 0	(无)
	334	P1508C Complete the MST bitmasks brute force data structures dfs and similar dsu graphs greedy trees *2500	0 / 0	(无)
	332	P1508E Tree Calendar brute force constructive algorithms data structures dfs and similar sortings trees *3100	0 / 0	(无)
	331	P1508F Optimal Encoding brute force data structures *3500	0 / 0	(无)
	317	P1510K King's Task brute force graphs implementation *1200	0 / 0	(无)
	314	P1511C Yet Another Card Deck brute force data structures implementation trees *1100	0 / 0	(无)
	313	P1511D Min Cost String brute force constructive algorithms graphs greedy strings *1600	0 / 0	(无)
	311	P1511F Chainword brute force data structures dp matrices string suffix structures strings *2700	0 / 0	(无)
	310	P1511G Chips on a Board bitmasks brute force data structures dp games two pointers *2700	0 / 0	(无)
	309	P1512A Spy Detected! brute force implementation *800	0 / 0	(无)
	305	P1512E Permutation by Sum brute force greedy math *1600	0 / 0	(无)
	304	P1512F Education brute force dp greedy implementation *1900	0 / 0	(无)
	303	P1512G Short Task brute force dp math number theory *1700	0 / 0	(无)
	297	P1513F Swapping Problem brute force constructive algorithms data structures sortings *2500	0 / 0	(无)
	290	P1515B Phoenix and Puzzle brute force geometry math number theory *1000	0 / 0	(无)
	284	P1515H Phoenix and Bits bitmasks brute force data structures sortings *3500	0 / 0	(无)
	281	P1516B AGAGA XOOORRR bitmasks brute force dp greedy *1500	0 / 0	(无)
	267	P1519C Berland Regional brute force data structures greedy number theory sortings *1400	0 / 0	(无)
	266	P1519D Maximum Sum of Products brute force dp implementation math two pointers *1600	0 / 0	(无)
	264	P1519F Chests and Keys bitmasks brute force dfs and similar dp flows *3200	0 / 0	(无)
	263	P1520A Do Not Be Distracted! brute force implementation *800	0 / 0	(无)
	262	P1520B Ordinary Numbers brute force math number theory *800	0 / 0	(无)
	256	P1520G To Go Or Not To Go? brute force dfs and similar graphs greedy implementation shortest paths *2200	0 / 0	(无)
	248	P1523C Compression and Expansion brute force data structures greedy implementation trees *1600	0 / 0	(无)
	247	P1523D Love-Hate bitmasks brute force dp probabilities *2400	0 / 0	(无)
	237	P1525F Goblins And Gnomes brute force dp flows graph matchings *2800	0 / 0	(无)
	234	P1526C1 Potions (Easy Version) brute force data structures dp greedy *1500	0 / 0	(无)
	232	P1526D Kill Anton brute force constructive algorithms data structures math strings *2200	0 / 0	(无)
	213	P1530C Pursuit binary search brute force greedy sortings *1200	0 / 0	(无)
	201	P1531E2 Сортировка слиянием special problem special problem brute force	0 / 0	(无)
	183	P1534A Colour the Flag brute force implementation *800	0 / 0	(无)
	174	P1535A Fair Playoff brute force implementation *800	0 / 0	(无)
	173	P1535B Array Reodering brute force greedy math number theory sortings *900	0 / 0	(无)
	169	P1535F String Distance binary search brute force data structures hashing implementation strings *3000	0 / 0	(无)
	168	P1536A Omkar and Bad Story brute force constructive algorithms *800	0 / 0	(无)
	167	P1536B Prinzessin der Verurteilung brute force constructive algorithms strings *1200	0 / 0	(无)
	158	P1537E1 Erase and Extend (Easy Version) binary search brute force dp greedy hashing implementation string suffix structures strings two pointers *1600	0 / 0	(无)
	155	P1538A Stone Game brute force dp greedy *800	0 / 0	(无)
	141	P1540B Tree Array brute force combinatorics dp graphs math probabilities trees *2300	0 / 0	(无)
	138	P1540D Inverse Inversions binary search brute force data structures *3200	0 / 0	(无)
	135	P1541B Pleasant Pairs brute force implementation math number theory *1200	0 / 0	(无)
	126	P1543C Need for Pink Slips bitmasks brute force dfs and similar implementation math probabilities *1900	0 / 0	(无)
	124	P1543D2 RPD and Rap Sheet (Hard Version) brute force constructive algorithms interactive math *2200	0 / 0	(无)
	120	P1545C AquaMoon and Permutations 2-sat brute force combinatorics constructive algorithms graph matchings graphs *2800	0 / 0	(无)
	116	P1545F AquaMoon and Potatoes brute force data structures dp *3500	0 / 0	(无)
	115	P1546A AquaMoon and Two Arrays brute force greedy *800	0 / 0	(无)
	108	P1547F Array Stabilization (GCD version) binary search brute force data structures divide and conquer number theory two pointers *1900	0 / 0	(无)
	100	P1548A Web of Lies brute force graphs greedy *1400	0 / 0	(无)
	96	P1548D2 Gregor and the Odd Cows (Hard) brute force geometry math number theory *3300	0 / 0	(无)
	90	P1550C Manhattan Subarrays brute force geometry greedy implementation *1700	0 / 0	(无)
	88	P1550E Stringforces binary search bitmasks brute force dp strings two pointers *2500	0 / 0	(无)
	80	P1551E Fixed Points binary search brute force dp *2000	0 / 0	(无)
	79	P1551F Equidistant Vertices brute force combinatorics dfs and similar dp trees *2200	0 / 0	(无)
	75	P1552D Array Differentiation bitmasks brute force constructive algorithms dfs and similar dp graphs math *1800	0 / 0	(无)
	72	P1552G A Serious Referee bitmasks brute force dfs and similar sortings *3000	0 / 0	(无)
	68	P1553B Reverse String brute force dp hashing implementation strings *1300	0 / 0	(无)
	67	P1553C Penalty bitmasks brute force dp greedy *1200	0 / 0	(无)
	65	P1553E Permutation Shift brute force combinatorics constructive algorithms dfs and similar dsu graphs math *2100	0 / 0	(无)
	63	P1553G Common Divisor Graph brute force constructive algorithms dsu graphs hashing math number theory *2700	0 / 0	(无)
	59	P1554B Cobb bitmasks brute force greedy math *1700	0 / 0	(无)
	55	P1555A PizzaForces brute force math *900	0 / 0	(无)
	54	P1555B Two Tables brute force *1300	0 / 0	(无)
	53	P1555C Coin Rows brute force constructive algorithms dp implementation *1300	0 / 0	(无)
	52	P1555D Say No to Palindromes brute force constructive algorithms dp strings *1600	0 / 0	(无)
	47	P1556C Compressed Bracket Sequence brute force implementation *1800	0 / 0	(无)
	41	P1557A Ezzat and Two Subsequences brute force math sortings *800	0 / 0	(无)
	37	P1557E Assiut Chess brute force constructive algorithms interactive *2800	0 / 0	(无)
	36	P1558A Charmed by the Game brute force math *1300	0 / 0	(无)
	35	P1558B Up the Strip brute force dp math number theory two pointers *1900	0 / 0	(无)
	26	P1559D1 Mocha and Diana (Easy Version) brute force constructive algorithms dsu graphs greedy trees *1400	0 / 0	(无)
	27	P1559D2 Mocha and Diana (Hard Version) brute force constructive algorithms dfs and similar dsu graphs greedy trees two pointers *2500	0 / 0	(无)
	18	P1560F1 Nearest Beautiful Number (easy version) binary search bitmasks brute force constructive algorithms dfs and similar greedy *1900	0 / 0	(无)
	17	P1560F2 Nearest Beautiful Number (hard version) bitmasks brute force constructive algorithms dfs and similar dp greedy *2100	0 / 0	(无)
	16	P1561A Simply Strange Sort brute force implementation sortings *800	0 / 0	(无)

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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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