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Problemset

302 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
1721F	Matching Reduction brute force constructive algorithms dfs and similar flows graph matchings graphs interactive	2800	641
1718E	Impressionism constructive algorithms graphs implementation math	3500	228
1717F	Madoka and The First Session constructive algorithms flows graph matchings graphs implementation	2500	788
1704E	Count Seconds brute force constructive algorithms dp graphs implementation math	2200	2.7k
1698F	Equal Reversal constructive algorithms graphs implementation math	2800	782
1697E	Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math	2400	1.5k
1697F	Too Many Constraints 2-sat constructive algorithms graphs implementation	2800	788
1696F	Tree Recovery brute force constructive algorithms dfs and similar dsu graphs trees	2600	1.2k
1695E	Ambiguous Dominoes constructive algorithms dfs and similar graphs	2700	543
1689E	ANDfinity bitmasks brute force constructive algorithms dfs and similar dsu graphs	2500	1.4k
1687B	Railway System constructive algorithms graphs greedy interactive sortings	1700	4.2k
1682E	Unordered Swaps constructive algorithms dfs and similar graphs greedy math sortings trees	2700	777
1677C	Tokitsukaze and Two Colorful Tapes constructive algorithms dfs and similar graphs greedy	1900	4.1k
1672F1	Array Shuffling constructive algorithms graphs greedy	2000	3.6k
1672F2	Checker for Array Shuffling constructive algorithms dfs and similar graphs	2800	956
1672G	Cross Xor constructive algorithms graphs math matrices	3200	676
1659E	AND-MEX Walk bitmasks brute force constructive algorithms dfs and similar dsu graphs	2200	2k
1656F	Parametric MST binary search constructive algorithms graphs greedy math sortings	2600	1.3k
1656G	Cycle Palindrome constructive algorithms graphs math	3200	505
1656I	Neighbour Ordering constructive algorithms graphs	3500	169
1647B	Madoka and the Elegant Gift brute force constructive algorithms graphs implementation	1200	17.2k
1635E	Cars 2-sat constructive algorithms dfs and similar dsu graphs greedy sortings	2200	2.9k
1634E	Fair Share constructive algorithms data structures dfs and similar graph matchings graphs	2400	2.3k
1615H	Reindeer Games binary search constructive algorithms data structures divide and conquer flows graphs shortest paths	3000	457
1610F	Mashtali: a Space Oddysey constructive algorithms dfs and similar graphs	3000	716
1594D	The Number of Imposters constructive algorithms dfs and similar dp dsu graphs	1700	9.8k
1592C	Bakry and Partitioning bitmasks constructive algorithms dfs and similar dp graphs trees	1700	9.3k
1583E	Moment of Bloom constructive algorithms dfs and similar graph matchings graphs greedy trees	2200	2.5k
1581B	Diameter of Graph constructive algorithms graphs greedy math	1200	12.6k
1580E	Railway Construction brute force constructive algorithms data structures graphs shortest paths	3400	126
1579D	Productive Meeting constructive algorithms graphs greedy	1400	18.6k
1578A	Anti-Tetris constructive algorithms graphs shortest paths	2800	449
1567F	One-Four Overload 2-sat constructive algorithms dfs and similar dsu graphs implementation	2700	888
1566G	Four Vertices constructive algorithms data structures graphs greedy implementation shortest paths	3100	433
1559C	Mocha and Hiking constructive algorithms graphs	1200	23.2k
1559D1	Mocha and Diana (Easy Version) brute force constructive algorithms dsu graphs greedy trees	1400	16.5k
1559D2	Mocha and Diana (Hard Version) brute force constructive algorithms dfs and similar dsu graphs greedy trees two pointers	2500	3.2k
1553E	Permutation Shift brute force combinatorics constructive algorithms dfs and similar dsu graphs math	2100	3.8k
1553G	Common Divisor Graph brute force constructive algorithms dsu graphs hashing math number theory	2700	1.3k
1552D	Array Differentiation bitmasks brute force constructive algorithms dfs and similar dp graphs math	1800	8k
1545C	AquaMoon and Permutations 2-sat brute force combinatorics constructive algorithms graph matchings graphs	2800	797
1543E	The Final Pursuit bitmasks constructive algorithms divide and conquer graphs greedy math	2700	499
1540A	Great Graphs constructive algorithms graphs greedy shortest paths sortings	1400	15.1k
1537F	Figure Fixing constructive algorithms dfs and similar dsu graphs greedy math	2200	2.9k
1534H	Lost Nodes constructive algorithms dp graphs interactive sortings trees	3500	314
1533G	Biome Map *special constructive algorithms dfs and similar graphs	unrated	98
1533I	Excursions *special constructive algorithms dfs and similar flows graph matchings graphs	unrated	61
1530D	Secret Santa constructive algorithms flows graphs greedy math	1600	10.2k
1528D	It's a bird! No, it's a plane! No, it's AaParsa! constructive algorithms graphs shortest paths	2500	1.8k
1519E	Off by One constructive algorithms dfs and similar geometry graphs sortings trees	2700	943
1517G	Starry Night Camping constructive algorithms flows graphs	3300	753
1515F	Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees	2600	2.2k
1513D	GCD and MST constructive algorithms dsu graphs greedy number theory sortings	2000	6.7k
1511D	Min Cost String brute force constructive algorithms graphs greedy strings	1600	12.6k
1506F	Triangular Paths constructive algorithms graphs math shortest paths sortings	2000	3.8k
1503F	Balance the Cards constructive algorithms data structures divide and conquer geometry graphs implementation	3500	239
1495C	Garden of the Sun constructive algorithms graphs	2300	2.9k
1495F	Squares constructive algorithms data structures dp graphs trees	3300	533
1494E	A-Z Graph constructive algorithms data structures graphs hashing	2400	2.1k
1494F	Delete The Edges brute force constructive algorithms dfs and similar graphs implementation	2900	531
1491G	Switch and Flip constructive algorithms graphs math	2800	1k
1487C	Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math	1500	15.6k
1486E	Paired Payment binary search brute force constructive algorithms dp flows graphs shortest paths	2200	3.5k
1485D	Multiples and Power Differences constructive algorithms graphs math number theory	2200	5.7k
1481D	AB Graph brute force constructive algorithms graphs greedy implementation	2000	4.9k
1477D	Nezzar and Hidden Permutations constructive algorithms dfs and similar graphs	2800	808
1470D	Strange Housing constructive algorithms dfs and similar graph matchings graphs greedy	2200	4.3k
1463E	Plan of Lectures constructive algorithms dfs and similar dsu graphs implementation sortings trees	2400	1.8k
1450E	Capitalism constructive algorithms dfs and similar graphs shortest paths	2700	1.5k
1439A2	Binary Table (Hard Version) constructive algorithms graphs greedy implementation	1900	5.4k
1439B	Graph Subset Problem constructive algorithms data structures graphs	2600	1.7k
1407E	Egor in the Republic of Dagestan constructive algorithms dfs and similar dp graphs greedy shortest paths	2500	2k
1406C	Link Cut Centroids constructive algorithms dfs and similar graphs trees	1700	12k
1391E	Pairs of Pairs constructive algorithms dfs and similar graphs greedy trees	2600	2.1k
1385E	Directing Edges constructive algorithms dfs and similar graphs	2000	9.5k
1383D	Rearrange brute force constructive algorithms graphs greedy sortings	2800	836
1375G	Tree Modification brute force constructive algorithms dfs and similar graph matchings graphs trees	2800	2.3k
1368E	Ski Accidents constructive algorithms graphs greedy	2500	2.4k
1365D	Solve The Maze constructive algorithms dfs and similar dsu graphs greedy implementation shortest paths	1700	21.3k
1364D	Ehab's Last Corollary constructive algorithms dfs and similar graphs greedy implementation trees	2100	5.1k
1361A	Johnny and Contribution constructive algorithms graphs greedy sortings	1700	8.9k
1361C	Johnny and Megan's Necklace binary search bitmasks constructive algorithms dfs and similar dsu graphs	2500	2.1k
1344B	Monopole Magnets constructive algorithms dfs and similar dsu graphs	2000	6.4k
1340D	Nastya and Time Machine constructive algorithms dfs and similar graphs trees	2600	1.1k
1334D	Minimum Euler Cycle constructive algorithms graphs greedy implementation	1800	7.8k
1333D	Challenges in school №41 brute force constructive algorithms games graphs greedy implementation sortings	2100	4.2k
1328D	Carousel constructive algorithms dp graphs greedy math	1800	14.7k
1325F	Ehab's Last Theorem constructive algorithms dfs and similar graphs greedy	2500	2.4k
1316D	Nash Matrix constructive algorithms dfs and similar graphs implementation	2000	3.7k
1304D	Shortest and Longest LIS constructive algorithms graphs greedy two pointers	1800	6.8k
1301D	Time to Run constructive algorithms graphs implementation	2000	4.3k
1296E1	String Coloring (easy version) constructive algorithms dp graphs greedy sortings	1800	8.3k
1290D	Coffee Varieties (hard version) constructive algorithms graphs interactive	3000	977
1286B	Numbers on Tree constructive algorithms data structures dfs and similar graphs greedy trees	1800	5.7k
1285E	Delete a Segment brute force constructive algorithms data structures dp graphs sortings trees two pointers	2300	2k
1282E	The Cake Is a Lie constructive algorithms data structures dfs and similar graphs	2400	1.2k
1270G	Subset with Zero Sum constructive algorithms dfs and similar graphs math	2700	3.1k
1266D	Decreasing Debts constructive algorithms data structures graphs greedy implementation math two pointers	2000	3.9k
1253D	Harmonious Graph constructive algorithms dfs and similar dsu graphs greedy sortings	1700	10.4k
1244D	Paint the Tree brute force constructive algorithms dp graphs implementation trees	1800	8.4k

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