combinatorics - Problem Set - 追梦算法网

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	3316	P570E Pig and Palindromes combinatorics dp *2300	0 / 0	(None)
	3358	P585E Present for Vitalik the Philatelist combinatorics math number theory *2900	0 / 0	(None)
	3379	P596C Wilbur and Points combinatorics greedy sortings *1700	0 / 0	(None)
	3399	P603B Moodular Arithmetic combinatorics dfs and similar dsu math number theory *1800	0 / 0	(None)
	3417	P617B Chocolate combinatorics *1300	0 / 0	(None)
	3427	P621B Wet Shark and Bishops combinatorics implementation *1300	0 / 0	(None)
	3434	P623E Transforming Sequence combinatorics dp fft math *3300	0 / 0	(None)
	3451	P629A Far Relative’s Birthday Cake brute force combinatorics constructive algorithms implementation *800	0 / 0	(None)
	3454	P629E Famil Door and Roads combinatorics data structures dfs and similar dp probabilities trees *2300	0 / 0	(None)
	3456	P630C Lucky Numbers combinatorics math *1100	0 / 0	(None)
	3459	P630G Challenge Pennants combinatorics math *1600	0 / 0	(None)
	3460	P630H Benches combinatorics math *1400	0 / 0	(None)
	3501	P645F Cowslip Collections combinatorics math number theory *2500	0 / 0	(None)
	3509	P660E Different Subsets For All Tuples combinatorics math *2300	0 / 0	(None)
	3525	P666C Codeword combinatorics strings *2500	0 / 0	(None)
	3546	P677C Vanya and Label bitmasks combinatorics implementation strings *1500	0 / 0	(None)
	3567	P685A Robbers' watch brute force combinatorics dp math *1700	0 / 0	(None)
	3578	P689C Mike and Chocolate Thieves binary search combinatorics math *1700	0 / 0	(None)
	3580	P689E Mike and Geometry Problem combinatorics data structures dp geometry implementation *2000	0 / 0	(None)
	3586	P690D2 The Wall (medium) combinatorics *1800	0 / 0	(None)

Pick a problem randomly based on the current filter.