combinatorics - Codeforces - 题库

ID	题目显示标签隐藏标签	AC / 尝试	难度
95	P1666F Fancy Stack combinatorics dp implementation *2200	0 / 0	(无)
84	P1667E Centroid Probabilities combinatorics dp fft math *3000	0 / 0	(无)
67	P1670F Jee, You See? bitmasks combinatorics dp *2400	0 / 0	(无)
62	P1671E Preorder combinatorics divide and conquer dp dsu hashing sortings trees *2100	0 / 0	(无)
61	P1671F Permutation Counting brute force combinatorics dp fft math *2700	0 / 0	(无)
47	P1673D Lost Arithmetic Progression combinatorics math number theory *1900	0 / 0	(无)
46	P1673E Power or XOR? bitmasks combinatorics math number theory *2500	0 / 0	(无)
43	P1674B Dictionary combinatorics math *800	0 / 0	(无)
42	P1674C Infinite Replacement combinatorics implementation strings *1000	0 / 0	(无)
8	P1679E Typical Party in Dorm bitmasks brute force combinatorics dp math strings *2400	0 / 0	(无)
7845	P1687E Become Big For Me combinatorics constructive algorithms greedy math number theory *3500	0 / 0	(无)
7823	P1691F K-Set Tree combinatorics dfs and similar dp math trees *2500	0 / 0	(无)
7881	P1696E Placing Jinas combinatorics math	0 / 0	(无)
7878	P1696H Maximum Product? brute force combinatorics dp greedy implementation math two pointers	0 / 0	(无)
7818	P1697E Coloring brute force combinatorics constructive algorithms dfs and similar dp dsu graphs implementation	0 / 0	(无)
7895	P1698E PermutationForces II brute force combinatorics greedy sortings trees two pointers *2300	0 / 0	8
7890	P1699C The Third Problem combinatorics constructive algorithms math *1700	0 / 0	5
7900	P1701F Points combinatorics data structures matrices	0 / 0	(无)
7962	P1704H1 Game of AI (easy version) combinatorics constructive algorithms dp fft math	0 / 0	(无)
7961	P1704H2 Game of AI (hard version) combinatorics fft math	0 / 0	(无)

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