combinatorics - 题库 - 思+学堂

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	531	P1644E Expand the Path brute force combinatorics data structures implementation math *1900	0 / 0	6
	530	P1644F Basis combinatorics fft math number theory *2900	0 / 0	10
	517	P1648A Weird Sum combinatorics data structures geometry math matrices sortings *1400	0 / 0	4
	515	P1648C Tyler and Strings combinatorics data structures implementation *1900	0 / 0	6
	498	P1651E Sum of Matchings brute force combinatorics constructive algorithms dfs and similar graph matchings greedy math *2600	0 / 0	10
	489	P1654H Three Minimums combinatorics constructive algorithms divide and conquer dp fft math *3500	0 / 0	10
	475	P1657E Star MST combinatorics dp graph matchings math *2200	0 / 0	8
	472	P1658B Marin and Anti-coprime Permutation combinatorics math number theory *800	0 / 0	3
	434	P1662N Drone Photo combinatorics math sortings	0 / 0	(无)
	429	P1663D Is it rated - 3 *special problem combinatorics dp math	0 / 0	(无)
	414	P1666F Fancy Stack combinatorics dp implementation *2200	0 / 0	8
	403	P1667E Centroid Probabilities combinatorics dp fft math *3000	0 / 0	10
	386	P1670F Jee, You See? bitmasks combinatorics dp *2400	0 / 0	9
	381	P1671E Preorder combinatorics divide and conquer dp dsu hashing sortings trees *2100	0 / 0	7
	380	P1671F Permutation Counting brute force combinatorics dp fft math *2700	0 / 0	10
	366	P1673D Lost Arithmetic Progression combinatorics math number theory *1900	0 / 0	6
	365	P1673E Power or XOR? bitmasks combinatorics math number theory *2500	0 / 0	9
	362	P1674B Dictionary combinatorics math *800	0 / 0	3
	361	P1674C Infinite Replacement combinatorics implementation strings *1000	0 / 0	3
	327	P1679E Typical Party in Dorm bitmasks combinatorics dp strings *2400	0 / 0	9
	287	P1687E Become Big For Me combinatorics constructive algorithms greedy math number theory *3500	0 / 0	10
	265	P1691F K-Set Tree combinatorics dfs and similar dp math trees *2500	0 / 0	9
	238	P1696E Placing Jinas combinatorics math *2000	0 / 0	7
	235	P1696H Maximum Product? brute force combinatorics dp greedy implementation math two pointers *3500	0 / 0	10
	230	P1697E Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math *2400	0 / 0	9
	224	P1698E PermutationForces II brute force combinatorics greedy sortings trees two pointers *2300	0 / 0	8
	219	P1699C The Third Problem combinatorics constructive algorithms math *1700	0 / 0	5
	205	P1701F Points combinatorics data structures implementation math matrices *2500	0 / 0	9
	182	P1704H1 Game of AI (easy version) combinatorics constructive algorithms dp fft math *3200	0 / 0	10
	181	P1704H2 Game of AI (hard version) combinatorics fft math *3500	0 / 0	10
	177	P1705D Mark and Lightbulbs combinatorics constructive algorithms greedy math sortings *1800	0 / 0	6
	176	P1705E Mark and Professor Koro binary search bitmasks brute force combinatorics data structures greedy *2300	0 / 0	8
	165	P1707D Partial Virtual Trees combinatorics dfs and similar dp math trees *3000	1 / 1	10
	143	P1712E1 LCM Sum (easy version) binary search brute force combinatorics math number theory two pointers *2300	0 / 0	8
	135	P1713F Lost Array bitmasks combinatorics constructive algorithms dp math *2900	0 / 0	10
	125	P1715C Monoblock combinatorics data structures implementation math *1700	0 / 0	5
	116	P1716F Bags with Balls combinatorics dp math number theory *2500	1 / 1	9
	112	P1717D Madoka and The Corruption Scheme combinatorics constructive algorithms greedy math *1900	0 / 0	6
	78	P1725C Circular Mirror binary search combinatorics geometry math two pointers *2000	0 / 0	7
	76	P1725E Electrical Efficiency combinatorics data structures dp math number theory trees *2500	0 / 0	9
	72	P1725I Imitating the Key Tree combinatorics dsu trees *2800	0 / 0	10
	63	P1726E Almost Perfect combinatorics fft math *2400	0 / 0	9
	61	P1726G A Certain Magical Party combinatorics data structures greedy sortings *3300	0 / 0	10
	53	P1728G Illumination binary search bitmasks brute force combinatorics dp math two pointers *2700	0 / 0	10
	46	P1729G Cut Substrings combinatorics dp hashing strings two pointers *2100	0 / 0	7
	41	P1730E Maximums and Minimums combinatorics data structures divide and conquer number theory *2700	0 / 0	10
	24	P1735D Meta-set brute force combinatorics data structures hashing math *1700	0 / 0	5
	17	P1737E Ela Goes Hiking combinatorics dp math probabilities	0 / 0	(无)
	10	P1738E Balance Addicts combinatorics dp math two pointers *2300	0 / 0	8
	4	P1739C Card Game combinatorics constructive algorithms dp games	0 / 0	(无)

根据当前过滤条件随机选择一道题