graphs - 题库 - CZOJ

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	661	P1682F MCMF? data structures flows graphs greedy sortings two pointers *2700	0 / 0	10
	643	P1687B Railway System constructive algorithms graphs greedy interactive sortings *1700	0 / 0	提高+/省选-
	631	P1689E ANDfinity bitmasks brute force constructive algorithms dfs and similar dsu graphs *2500	0 / 0	9
	625	P1690F Shifting String graphs math number theory strings *1700	0 / 0	提高+/省选-
	619	P1691E Number of Groups data structures dfs and similar dsu graphs greedy sortings *2300	0 / 0	8
	607	P1693C Keshi in Search of AmShZ graphs greedy shortest paths *2300	0 / 0	8
	599	P1695C Zero Path brute force data structures dp graphs greedy shortest paths *1700	0 / 0	提高+/省选-
	596	P1695E Ambiguous Dominoes constructive algorithms dfs and similar graphs *2700	0 / 0	10
	590	P1696F Tree Recovery brute force constructive algorithms dfs and similar dsu graphs trees *2600	0 / 0	10
	583	P1697E Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math *2400	0 / 0	9
	582	P1697F Too Many Constraints 2-sat constructive algorithms graphs implementation *2800	0 / 0	10
	576	P1698F Equal Reversal constructive algorithms graphs implementation math *2800	0 / 0	10
	553	P1702E Split Into Two Sets dfs and similar dsu graphs *1600	0 / 0	提高+/省选-
	538	P1704E Count Seconds brute force constructive algorithms dp graphs implementation math *2200	0 / 0	8
	510	P1707C DFS Trees dfs and similar dsu graphs greedy sortings trees *2400	0 / 0	9
	499	P1709F Multiset of Strings bitmasks brute force dp fft flows graphs math meet-in-the-middle trees *2500	0 / 0	9
	492	P1711B Party brute force graphs *1300	0 / 0	普及+/提高
	468	P1715D 2+ doors 2-sat bitmasks graphs greedy *1900	0 / 0	省选/NOI-
	467	P1715E Long Way Home data structures divide and conquer dp geometry graphs greedy shortest paths *2400	0 / 0	9
	454	P1717F Madoka and The First Session constructive algorithms flows graph matchings graphs implementation *2500	0 / 0	9
	448	P1718E Impressionism constructive algorithms graphs implementation math *3500	0 / 0	10
	432	P1721F Matching Reduction brute force constructive algorithms dfs and similar flows graph matchings graphs interactive *2800	0 / 0	10
	412	P1725M Moving Both Hands dp graphs shortest paths *1800	0 / 0	省选/NOI-
	409	P1726C Jatayu's Balanced Bracket Sequence data structures dsu graphs greedy *1300	0 / 0	普及+/提高
	408	P1726D Edge Split brute force constructive algorithms dfs and similar dsu graphs probabilities trees *2000	0 / 0	NOI/NOI+/CTSC
	356	P1735C Phase Shift dfs and similar dsu graphs greedy implementation strings *1400	0 / 0	普及+/提高
	343	P1737D Ela and the Wiring Wizard brute force dp graphs greedy implementation shortest paths *2200	0 / 0	8
	336	P1738D Permutation Addicts constructive algorithms data structures dfs and similar dsu graphs trees *1900	0 / 0	省选/NOI-
	334	P1738F Connectivity Addicts constructive algorithms dsu graphs greedy interactive shortest paths trees *2400	0 / 0	9
	328	P1739D Reset K Edges binary search data structures dfs and similar graphs greedy trees *1900	0 / 0	省选/NOI-
	317	P1740I Arranging Crystal Balls data structures divide and conquer divide and conquer dp geometry graphs number theory *3500	0 / 0	10
	313	P1741D Masha and a Beautiful Tree dfs and similar divide and conquer graphs sortings trees *1300	0 / 0	普及+/提高
	310	P1741G Kirill and Company bitmasks brute force dfs and similar dp flows graphs shortest paths *2200	0 / 0	8
	265	P1749E Cactus Wall constructive algorithms dfs and similar graphs shortest paths *2400	0 / 0	9
	251	P1753D The Beach constructive algorithms dfs and similar graphs shortest paths *2400	0 / 0	9
	242	P1758E Tick, Tock combinatorics dfs and similar dsu graphs *2500	0 / 0	9
	227	P1760G SlavicG's Favorite Problem bitmasks dfs and similar graphs *1700	0 / 0	提高+/省选-
	224	P1761C Set Construction constructive algorithms dfs and similar graphs greedy *1400	0 / 0	普及+/提高
	222	P1761E Make It Connected binary search brute force constructive algorithms dsu graphs greedy matrices trees two pointers *2400	0 / 0	9
	207	P1763E Node Pairs dp graphs math number theory *2200	0 / 0	8
	206	P1763F Edge Queries data structures dfs and similar dp dsu graphs trees *3000	0 / 0	10
	203	P1764C Doremy's City Construction graphs greedy *1400	0 / 0	普及+/提高
	188	P1765H Hospital Queue binary search graphs greedy implementation *2200	0 / 0	8
	171	P1767E Algebra Flash bitmasks brute force dp graphs math meet-in-the-middle trees *2500	0 / 0	9
	166	P1768D Lucky Permutation constructive algorithms dfs and similar graphs greedy *1800	0 / 0	省选/NOI-
	160	P1770D Koxia and Game constructive algorithms data structures dfs and similar dsu flows games graph matchings graphs implementation *2000	0 / 0	NOI/NOI+/CTSC
	124	P1775D Friendly Spiders dfs and similar graphs math number theory shortest paths *1800	0 / 0	省选/NOI-
	116	P1776F Train Splitting constructive algorithms graphs greedy *1700	0 / 0	提高+/省选-
	112	P1776J Italian Data Centers graphs shortest paths *2500	0 / 0	9
	103	P1777E Edge Reverse binary search dfs and similar graphs trees *2200	0 / 0	8

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