	ID	题目显示标签隐藏标签	AC / 尝试	难度
	3411	P895C Square Subsets bitmasks combinatorics dp math *2000	0 / 0	(无)
	3410	P895D String Mark combinatorics math strings *2100	0 / 0	(无)
	3409	P895E Eyes Closed data structures probabilities *2300	0 / 0	(无)
	3408	P896A Nephren gives a riddle binary search dfs and similar *1700	0 / 0	(无)
	3407	P896B Ithea Plays With Chtholly binary search constructive algorithms games greedy interactive *2000	0 / 0	(无)
	3406	P896C Willem, Chtholly and Seniorious data structures probabilities *2600	0 / 0	(无)
	3405	P896D Nephren Runs a Cinema chinese remainder theorem combinatorics math number theory *2900	0 / 0	(无)
	3404	P896E Welcome home, Chtholly data structures dsu *3100	0 / 0	(无)
	3403	P897A Scarborough Fair implementation *800	0 / 0	(无)
	3402	P897B Chtholly's request brute force *1300	0 / 0	(无)
	3401	P898A Rounding implementation math *800	0 / 0	(无)
	3400	P898B Proper Nutrition brute force implementation number theory *1100	0 / 0	(无)
	3399	P898C Phone Numbers implementation strings *1400	0 / 0	(无)
	3398	P898D Alarm Clock greedy *1600	0 / 0	(无)
	3397	P898E Squares and not squares constructive algorithms greedy *1600	0 / 0	(无)
	3396	P898F Restoring the Expression brute force hashing math *2300	0 / 0	(无)
	3395	P899A Splitting in Teams constructive algorithms greedy math *800	0 / 0	(无)
	3394	P899B Months and Years implementation *1200	0 / 0	(无)
	3393	P899C Dividing the numbers constructive algorithms graphs math *1300	0 / 0	(无)
	3392	P899D Shovel Sale constructive algorithms math *1800	0 / 0	(无)
	3391	P899E Segments Removal data structures dsu flows implementation two pointers *2000	0 / 0	(无)
	3390	P899F Letters Removing data structures strings *2100	0 / 0	(无)
	3389	P900A Find Extra One geometry implementation *800	0 / 0	(无)
	3388	P900B Position in Fraction math number theory *1300	0 / 0	(无)
	3387	P900C Remove Extra One brute force data structures math *1700	0 / 0	(无)
	3386	P900D Unusual Sequences bitmasks combinatorics dp math number theory *2000	0 / 0	(无)
	3385	P900E Maximum Questions data structures dp strings *2100	0 / 0	(无)
	3384	P901A Hashing Trees constructive algorithms trees *1500	0 / 0	(无)
	3383	P901B GCD of Polynomials constructive algorithms math *2200	0 / 0	(无)
	3382	P901C Bipartite Segments binary search data structures dfs and similar dsu graphs two pointers *2300	0 / 0	(无)
	3381	P901D Weighting a Tree constructive algorithms dfs and similar graphs *2700	0 / 0	(无)
	3380	P901E Cyclic Cipher fft math *3300	0 / 0	(无)
	3379	P902A Visiting a Friend greedy implementation *1100	0 / 0	(无)
	3378	P902B Coloring a Tree dfs and similar dsu greedy *1200	0 / 0	(无)
	3377	P903A Hungry Student Problem greedy implementation *900	0 / 0	(无)
	3376	P903B The Modcrab greedy implementation *1200	0 / 0	(无)
	3375	P903C Boxes Packing greedy *1200	0 / 0	(无)
	3374	P903D Almost Difference data structures math *2200	0 / 0	(无)
	3373	P903E Swapping Characters brute force hashing implementation strings *2200	0 / 0	(无)
	3372	P903F Clear The Matrix bitmasks dp *2200	0 / 0	(无)
	3371	P903G Yet Another Maxflow Problem data structures flows graphs *2700	0 / 0	(无)
	3370	P906A Shockers implementation strings *1600	0 / 0	(无)
	3369	P906B Seating of Students brute force constructive algorithms math *2200	0 / 0	(无)
	3368	P906C Party bitmasks brute force dp graphs *2400	0 / 0	(无)
	3367	P906D Power Tower chinese remainder theorem math number theory *2700	0 / 0	(无)
	3366	P906E Reverses dp string suffix structures strings *3300	0 / 0	(无)
	3365	P907A Masha and Bears brute force implementation *1300	0 / 0	(无)
	3364	P907B Tic-Tac-Toe implementation *1400	0 / 0	(无)
	3363	P908A New Year and Counting Cards brute force implementation *800	0 / 0	(无)
	3362	P908B New Year and Buggy Bot brute force implementation *1200	0 / 0	(无)
	3361	P908C New Year and Curling brute force geometry implementation math *1500	0 / 0	(无)
	3360	P908D New Year and Arbitrary Arrangement dp math probabilities *2200	0 / 0	(无)
	3359	P908E New Year and Entity Enumeration bitmasks combinatorics dp math *2500	0 / 0	(无)
	3358	P908F New Year and Rainbow Roads graphs greedy implementation *2400	0 / 0	(无)
	3357	P908G New Year and Original Order dp math *2800	0 / 0	(无)
	3356	P908H New Year and Boolean Bridges *3100	0 / 0	(无)
	3355	P909A Generate Login brute force greedy sortings *1000	0 / 0	(无)
	3354	P909B Segments constructive algorithms math *1300	0 / 0	(无)
	3353	P909C Python Indentation dp *1800	0 / 0	(无)
	3352	P909D Colorful Points data structures greedy implementation *2100	0 / 0	(无)
	3351	P909E Coprocessor dfs and similar dp graphs greedy *1900	0 / 0	(无)
	3350	P909F AND-permutations constructive algorithms *2500	0 / 0	(无)
	3349	P910A The Way to Home dfs and similar dp greedy implementation *800	0 / 0	(无)
	3348	P910B Door Frames greedy implementation *1600	0 / 0	(无)
	3347	P910C Minimum Sum constructive algorithms greedy math *1700	0 / 0	(无)
	3346	P911A Nearest Minimums implementation *1100	0 / 0	(无)
	3345	P911B Two Cakes binary search brute force implementation *1200	0 / 0	(无)
	3344	P911C Three Garlands brute force constructive algorithms *1400	0 / 0	(无)
	3343	P911D Inversion Counting brute force math *1800	0 / 0	(无)
	3342	P911E Stack Sorting constructive algorithms data structures greedy implementation *2000	0 / 0	(无)
	3341	P911F Tree Destruction constructive algorithms dfs and similar graphs greedy trees *2400	0 / 0	(无)
	3340	P911G Mass Change Queries data structures *2500	0 / 0	(无)
	3339	P912A Tricky Alchemy implementation *800	0 / 0	(无)
	3338	P912B New Year's Eve bitmasks constructive algorithms number theory *1300	0 / 0	(无)
	3337	P912C Perun, Ult! brute force greedy sortings *2500	0 / 0	(无)
	3336	P912D Fishes data structures graphs greedy probabilities shortest paths *2100	0 / 0	(无)
	3335	P912E Prime Gift binary search dfs and similar math meet-in-the-middle number theory two pointers *2400	0 / 0	(无)
	3334	P913A Modular Exponentiation implementation math *900	0 / 0	(无)
	3333	P913B Christmas Spruce implementation trees *1200	0 / 0	(无)
	3332	P913C Party Lemonade bitmasks dp greedy *1600	0 / 0	(无)
	3331	P913D Too Easy Problems binary search brute force data structures greedy sortings *1800	0 / 0	(无)
	3330	P913E Logical Expression bitmasks dp shortest paths *2400	0 / 0	(无)
	3329	P913F Strongly Connected Tournament dp graphs math probabilities *2800	0 / 0	(无)
	3328	P913G Power Substring math number theory *3200	0 / 0	(无)
	3327	P913H Don't Exceed math probabilities *3400	0 / 0	(无)
	3326	P914A Perfect Squares brute force implementation math *900	0 / 0	(无)
	3325	P914B Conan and Agasa play a Card Game games greedy implementation *1200	0 / 0	(无)
	3324	P914C Travelling Salesman and Special Numbers brute force combinatorics dp *1800	0 / 0	(无)
	3323	P914D Bash and a Tough Math Puzzle data structures number theory *1900	0 / 0	(无)
	3322	P914E Palindromes in a Tree bitmasks data structures divide and conquer trees *2400	0 / 0	(无)
	3321	P914F Substrings in a String bitmasks brute force data structures string suffix structures strings *3000	0 / 0	(无)
	3320	P914G Sum the Fibonacci bitmasks divide and conquer dp fft math *2600	0 / 0	(无)
	3319	P914H Ember and Storm's Tree Game combinatorics dp games trees *3400	0 / 0	(无)
	3318	P915A Garden implementation *900	0 / 0	(无)
	3317	P915B Browser implementation *1300	0 / 0	(无)
	3316	P915C Permute Digits dp greedy *1700	0 / 0	(无)
	3315	P915D Almost Acyclic Graph dfs and similar graphs *2200	0 / 0	(无)
	3314	P915E Physical Education Lessons data structures implementation sortings *2300	0 / 0	(无)
	3313	P915F Imbalance Value of a Tree data structures dsu graphs trees *2400	0 / 0	(无)
	3312	P915G Coprime Arrays math number theory *2300	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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