graphs - 题库 - bzoj.org

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	1769	P1481D AB Graph brute force constructive algorithms graphs greedy implementation *2000	0 / 0	7
	1761	P1482F Useful Edges graphs shortest paths *2400	0 / 0	9
	1755	P1485D Multiples and Power Differences constructive algorithms graphs math number theory *2200	0 / 0	8
	1747	P1486E Paired Payment binary search brute force constructive algorithms dp flows graphs shortest paths *2200	0 / 0	8
	1743	P1487C Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math *1500	0 / 0	5
	1741	P1487E Cheap Dinner brute force data structures graphs greedy implementation sortings two pointers *2000	0 / 0	7
	1715	P1491G Switch and Flip constructive algorithms graphs math *2800	0 / 0	10
	1697	P1494E A-Z Graph constructive algorithms data structures graphs hashing *2400	0 / 0	9
	1696	P1494F Delete The Edges brute force constructive algorithms dfs and similar graphs implementation *2900	0 / 0	10
	1693	P1495C Garden of the Sun constructive algorithms graphs *2300	0 / 0	8
	1692	P1495D BFS Trees combinatorics dfs and similar graphs math shortest paths trees *2600	0 / 0	10
	1690	P1495F Squares constructive algorithms data structures dp graphs trees *3300	0 / 0	10
	1683	P1497D Genius bitmasks dp graphs number theory *2500	0 / 0	9
	1677	P1498D Bananas in a Microwave dfs and similar dp graphs implementation *2200	0 / 0	8
	1676	P1498E Two Houses brute force graphs greedy interactive sortings *2200	0 / 0	8
	1668	P1499G Graph Coloring data structures graphs interactive *3100	0 / 0	10
	1654	P1503F Balance the Cards constructive algorithms data structures divide and conquer geometry graphs implementation *3500	0 / 0	10
	1637	P1506F Triangular Paths constructive algorithms graphs math shortest paths sortings *2000	0 / 0	7
	1633	P1508C Complete the MST bitmasks brute force data structures dfs and similar dsu graphs greedy trees *2500	0 / 0	9
	1625	P1510B Button Lock flows graph matchings graphs *2600	0 / 0	10
	1624	P1510C Cactus Not Enough dfs and similar graph matchings graphs *2900	0 / 0	10
	1616	P1510K King's Task brute force graphs implementation *1200	0 / 0	4
	1612	P1511D Min Cost String brute force constructive algorithms graphs greedy strings *1600	0 / 0	5
	1598	P1513D GCD and MST constructive algorithms dsu graphs greedy number theory sortings *2000	0 / 0	7
	1591	P1514E Baby Ehab's Hyper Apartment binary search graphs interactive sortings two pointers *2700	0 / 0	10
	1585	P1515F Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees *2600	0 / 0	10
	1584	P1515G Phoenix and Odometers dfs and similar graphs math number theory *2700	0 / 0	10
	1578	P1516D Cut binary search data structures dp graphs number theory two pointers *2100	0 / 0	7
	1573	P1517D Explorer Space dp graphs shortest paths *1800	0 / 0	6
	1570	P1517G Starry Night Camping constructive algorithms flows graphs *3300	0 / 0	10
	1564	P1519E Off by One constructive algorithms dfs and similar geometry graphs sortings trees *2700	0 / 0	10
	1555	P1520G To Go Or Not To Go? brute force dfs and similar graphs greedy implementation shortest paths *2200	0 / 0	8
	1519	P1528D It's a bird! No, it's a plane! No, it's AaParsa! constructive algorithms graphs shortest paths *2500	0 / 0	9
	1511	P1530D Secret Santa constructive algorithms flows graphs greedy math *1600	0 / 0	5
	1494	P1533G Biome Map *special problem constructive algorithms dfs and similar graphs	0 / 0	(无)
	1492	P1533I Excursions *special problem constructive algorithms dfs and similar flows graph matchings graphs	0 / 0	(无)
	1488	P1534C Little Alawn's Puzzle combinatorics dp dsu graphs math *1300	0 / 0	4
	1486	P1534E Lost Array graphs greedy interactive shortest paths *2300	0 / 0	8
	1485	P1534F1 Falling Sand (Easy Version) dfs and similar graphs greedy *2500	0 / 0	9
	1484	P1534F2 Falling Sand (Hard Version) dfs and similar dp graphs greedy *3000	0 / 0	10
	1482	P1534H Lost Nodes constructive algorithms dp graphs interactive sortings trees *3500	0 / 0	10
	1471	P1536E Omkar and Forest combinatorics graphs math shortest paths *2300	0 / 0	8
	1463	P1537F Figure Fixing constructive algorithms dfs and similar dsu graphs greedy math *2200	0 / 0	8
	1449	P1540A Great Graphs constructive algorithms graphs greedy shortest paths sortings *1400	0 / 0	4
	1448	P1540B Tree Array brute force combinatorics dp graphs math probabilities trees *2300	0 / 0	8
	1430	P1543E The Final Pursuit bitmasks constructive algorithms divide and conquer graphs greedy math *2700	0 / 0	10
	1427	P1545C AquaMoon and Permutations 2-sat brute force combinatorics constructive algorithms graph matchings graphs *2800	0 / 0	10
	1414	P1547G How Many Paths? dfs and similar dp graphs trees *2100	0 / 0	7
	1413	P1548A Web of Lies brute force graphs greedy *1400	0 / 0	4
	1408	P1548E Gregor and the Two Painters data structures divide and conquer graphs greedy math *3400	0 / 0	10
	1406	P1549B Gregor and the Pawn Game dfs and similar dp flows graph matchings graphs greedy implementation *800	0 / 0	3
	1400	P1550F Jumping Around binary search data structures divide and conquer dp dsu graphs shortest paths *2700	0 / 0	10
	1390	P1552B Running for Gold combinatorics graphs greedy sortings *1500	0 / 0	5
	1388	P1552D Array Differentiation bitmasks brute force constructive algorithms dfs and similar dp graphs math *1800	0 / 0	6
	1378	P1553E Permutation Shift brute force combinatorics constructive algorithms dfs and similar dsu graphs math *2100	0 / 0	7
	1376	P1553G Common Divisor Graph brute force constructive algorithms dsu graphs hashing math number theory *2700	0 / 0	10
	1363	P1555F Good Graph data structures dsu graphs trees *2700	0 / 0	10
	1357	P1556F Sports Betting bitmasks combinatorics dp graphs math probabilities *2500	0 / 0	9
	1355	P1556H DIY Tree graphs greedy math probabilities *3300	0 / 0	10
	1345	P1558E Down Below binary search dfs and similar graphs greedy meet-in-the-middle shortest paths *3000	0 / 0	10
	1341	P1559C Mocha and Hiking constructive algorithms graphs *1200	0 / 0	4
	1340	P1559D1 Mocha and Diana (Easy Version) brute force constructive algorithms dsu graphs greedy trees *1400	0 / 0	4
	1339	P1559D2 Mocha and Diana (Hard Version) brute force constructive algorithms dfs and similar dsu graphs greedy trees two pointers *2500	0 / 0	9
	1313	P1566G Four Vertices constructive algorithms data structures graphs greedy implementation shortest paths *3100	0 / 0	10
	1306	P1567F One-Four Overload 2-sat constructive algorithms dfs and similar dsu graphs implementation *2700	0 / 0	10
	1300	P1569F Palindromic Hamiltonian Path brute force dfs and similar dp graphs hashing *3000	0 / 0	10
	1289	P1572A Book binary search brute force data structures dp graphs implementation sortings *1800	0 / 0	6
	1286	P1572D Bridge Club flows graph matchings graphs greedy *2800	0 / 0	10
	1278	P1574D The Strongest Build binary search brute force data structures dfs and similar graphs greedy hashing implementation *2000	0 / 0	7
	1276	P1574F Occurrences combinatorics dfs and similar dp dsu fft graphs *2700	0 / 0	10
	1261	P1578A Anti-Tetris constructive algorithms graphs shortest paths *2800	0 / 0	10
	1251	P1578K Kingdom of Islands brute force graphs implementation *2800	0 / 0	10
	1245	P1579D Productive Meeting constructive algorithms graphs greedy *1400	0 / 0	4
	1242	P1579F Array Stabilization (AND version) brute force graphs math number theory shortest paths *1700	0 / 0	5
	1236	P1580E Railway Construction brute force constructive algorithms data structures graphs shortest paths *3400	0 / 0	10
	1233	P1581B Diameter of Graph constructive algorithms graphs greedy math *1200	0 / 0	4
	1220	P1583E Moment of Bloom constructive algorithms dfs and similar graph matchings graphs greedy trees *2200	0 / 0	8
	1211	P1584F Strange LCS bitmasks dp graphs greedy strings *2600	0 / 0	10
	1203	P1585G Poachers dp games graphs trees *2500	0 / 0	9
	1201	P1588F Jumping Through the Array binary search data structures graphs two pointers *3500	0 / 0	10
	1198	P1592C Bakry and Partitioning bitmasks constructive algorithms dfs and similar dp graphs trees *1700	0 / 0	5
	1182	P1594D The Number of Imposters constructive algorithms dfs and similar dp dsu graphs *1700	0 / 0	5
	1163	P1599I Desert data structures graphs *2700	0 / 0	10
	1157	P1601B Frog Traveler data structures dfs and similar dp graphs shortest paths two pointers *1900	0 / 0	6
	1125	P1607F Robot on the Board 2 brute force dfs and similar graphs implementation *2300	0 / 0	8
	1120	P1608C Game Master data structures dfs and similar dp graphs greedy two pointers *1700	0 / 0	5
	1119	P1608D Dominoes combinatorics fft graphs math number theory *2400	0 / 0	9
	1112	P1609D Social Network dsu graphs greedy implementation trees *1600	0 / 0	5
	1102	P1610F Mashtali: a Space Oddysey constructive algorithms dfs and similar graphs *3000	0 / 0	10
	1079	P1613E Crazy Robot dfs and similar graphs *2000	0 / 0	7
	1069	P1615C Menorah brute force graphs greedy math *1600	0 / 0	5
	1068	P1615D X(or)-mas Tree bitmasks dfs and similar dsu graphs trees *2200	0 / 0	8
	1067	P1615E Purple Crayon data structures dfs and similar games graphs greedy math sortings trees *2400	0 / 0	9
	1064	P1615H Reindeer Games binary search constructive algorithms data structures divide and conquer flows graphs shortest paths *3000	0 / 0	10
	1058	P1616F Tricolor Triangles brute force graphs math matrices *2900	0 / 0	10
	1057	P1616G Just Add an Edge dfs and similar dp graphs *3500	0 / 0	10
	1050	P1617E Christmas Chocolates dfs and similar dp games graphs implementation math number theory shortest paths trees *2700	0 / 0	10
	1020	P1621H Trains and Airplanes dfs and similar graphs shortest paths trees *3500	0 / 0	10
	1001	P1624G MinOr Tree bitmasks dfs and similar dsu graphs greedy *1900	0 / 0	6
	996	P1625E1 Cats on the Upgrade (easy version) brute force data structures dfs and similar divide and conquer dp graphs trees *2500	0 / 0	9

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