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Problemset

2,107 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1593G	Changing Brackets constructive algorithms data structures dp greedy	2200	1.9k
1592B	Hemose Shopping constructive algorithms dsu math sortings	1200	17.4k
1592C	Bakry and Partitioning bitmasks constructive algorithms dfs and similar dp graphs trees	1700	9.3k
1592F1	Alice and Recoloring 1 constructive algorithms greedy	2600	1.2k
1592F2	Alice and Recoloring 2 constructive algorithms flows graph matchings greedy	2800	1k
1586I	Omkar and Mosaic combinatorics constructive algorithms math	3500	355
1583B	Omkar and Heavenly Tree constructive algorithms trees	1200	13.4k
1583D	Omkar and the Meaning of Life constructive algorithms greedy interactive	1800	6k
1583E	Moment of Bloom constructive algorithms dfs and similar graph matchings graphs greedy trees	2200	2.5k
1583F	Defender of Childhood Dreams bitmasks constructive algorithms divide and conquer	2500	1.6k
1582D	Vupsen, Pupsen and 0 constructive algorithms math	1600	11.7k
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
1579E1	Permutation Minimization by Deque constructive algorithms greedy math	1000	25.6k
1578A	Anti-Tetris constructive algorithms graphs shortest paths	2800	449
1578M	The Mind constructive algorithms interactive probabilities	2700	543
1574A	Regular Bracket Sequences constructive algorithms	800	23.2k
1574E	Coloring combinatorics constructive algorithms implementation math	2500	1.1k
1572B	Xor of 3 brute force constructive algorithms greedy two pointers	2500	2k
1571D	Sweepstake *special brute force constructive algorithms implementation math	1800	373
1571F	Kotlinforces *special constructive algorithms dp	2000	231
1569B	Chess Tournament constructive algorithms	1000	19.9k
1567D	Expression Evaluation Error constructive algorithms greedy implementation math	2000	4.9k
1567F	One-Four Overload 2-sat constructive algorithms dfs and similar dsu graphs implementation	2700	888
1566B	MIN-MEX Cut bitmasks constructive algorithms dp greedy	800	21.4k
1566C	MAX-MEX Cut bitmasks constructive algorithms dp greedy	1000	19.2k
1566E	Buds Re-hanging constructive algorithms dfs and similar dp greedy trees	2000	4.5k
1566G	Four Vertices constructive algorithms data structures graphs greedy implementation shortest paths	3100	433
1566H	Xor-quiz constructive algorithms dp interactive math number theory	3200	177
1562B	Scenes From a Memory brute force constructive algorithms implementation math number theory	1000	20.7k
1562C	Rings constructive algorithms math	1500	14.4k
1560F1	Nearest Beautiful Number (easy version) binary search bitmasks brute force constructive algorithms dfs and similar greedy	1900	6.8k
1560F2	Nearest Beautiful Number (hard version) bitmasks brute force constructive algorithms dfs and similar dp greedy	2100	5.1k
1559A	Mocha and Math bitmasks constructive algorithms math	900	48.3k
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
1558C	Bottom-Tier Reversals constructive algorithms greedy	2000	3.8k
1557E	Assiut Chess brute force constructive algorithms interactive	2800	774
1556D	Take a Guess bitmasks constructive algorithms interactive math	1800	9k
1555C	Coin Rows brute force constructive algorithms dp implementation	1300	24.4k
1555D	Say No to Palindromes brute force constructive algorithms dp strings	1600	16k
1554D	Diane constructive algorithms greedy strings	1800	10.7k
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
1552C	Maximize the Intersections combinatorics constructive algorithms geometry greedy sortings	1800	6.3k
1552D	Array Differentiation bitmasks brute force constructive algorithms dfs and similar dp graphs math	1800	8k
1552E	Colors and Intervals constructive algorithms data structures greedy sortings	2300	2.1k
1551B2	Wonderful Coloring - 2 binary search constructive algorithms data structures greedy	1400	16.8k
1551D1	Domino (easy version) constructive algorithms math	1700	7.6k
1551D2	Domino (hard version) constructive algorithms implementation math	2100	3k
1550D	Excellent Arrays binary search combinatorics constructive algorithms implementation math sortings two pointers	2300	2.1k
1547D	Co-growing Sequence bitmasks constructive algorithms greedy	1300	18.8k
1545C	AquaMoon and Permutations 2-sat brute force combinatorics constructive algorithms graph matchings graphs	2800	797
1545D	AquaMoon and Wrong Coordinate constructive algorithms interactive math	3000	779
1543D1	RPD and Rap Sheet (Easy Version) bitmasks constructive algorithms interactive math	1700	8.1k
1543D2	RPD and Rap Sheet (Hard Version) brute force constructive algorithms interactive math	2200	2.2k
1543E	The Final Pursuit bitmasks constructive algorithms divide and conquer graphs greedy math	2700	499
1542B	Plus and Multiply constructive algorithms math number theory	1500	26.9k
1541A	Pretty Permutations constructive algorithms greedy implementation	800	30.9k
1540A	Great Graphs constructive algorithms graphs greedy shortest paths sortings	1400	15.1k
1539E	Game with Cards binary search constructive algorithms data structures dp greedy implementation	2500	1.1k
1538D	Another Problem About Dividing Numbers constructive algorithms math number theory	1700	15.5k
1537B	Bad Boy constructive algorithms greedy math	900	44.6k
1537C	Challenging Cliffs constructive algorithms greedy implementation math	1200	30.7k
1537F	Figure Fixing constructive algorithms dfs and similar dsu graphs greedy math	2200	2.9k
1536A	Omkar and Bad Story brute force constructive algorithms	800	20.8k
1536B	Prinzessin der Verurteilung brute force constructive algorithms strings	1200	26.2k
1536F	Omkar and Akmar chinese remainder theorem combinatorics constructive algorithms fft games geometry math meet-in-the-middle string suffix structures	2600	1.2k
1534D	Lost Tree constructive algorithms interactive trees	1800	6.9k
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
1531C	Симметричный амфитеатр *special constructive algorithms dp	unrated	660
1530B	Putting Plates constructive algorithms implementation	800	16.3k
1530D	Secret Santa constructive algorithms flows graphs greedy math	1600	10.2k
1530E	Minimax constructive algorithms greedy strings	2100	3.4k
1530G	What a Reversal constructive algorithms	3300	188
1529A	Eshag Loves Big Arrays constructive algorithms greedy math	800	31.1k
1528D	It's a bird! No, it's a plane! No, it's AaParsa! constructive algorithms graphs shortest paths	2500	1.8k
1527B1	Palindrome Game (easy version) constructive algorithms games	1200	36.1k
1527B2	Palindrome Game (hard version) constructive algorithms games	1900	8.8k
1526A	Mean Inequality constructive algorithms sortings	800	25.1k
1526D	Kill Anton brute force constructive algorithms data structures math strings	2200	2.8k
1526E	Oolimry and Suffix Array combinatorics constructive algorithms math	2400	1.6k
1526F	Median Queries constructive algorithms interactive probabilities	3000	400
1525B	Permutation Sort constructive algorithms greedy	900	26.8k
1523B	Lord of the Values constructive algorithms	1100	12.5k
1521A	Nastia and Nearly Good Numbers constructive algorithms math number theory	1000	42.6k
1521B	Nastia and a Good Array constructive algorithms math number theory	1300	23.1k
1521C	Nastia and a Hidden Permutation constructive algorithms interactive	2000	4.7k
1521D	Nastia Plays with a Tree constructive algorithms data structures dfs and similar dp dsu greedy implementation trees	2500	2.4k
1521E	Nastia and a Beautiful Matrix binary search constructive algorithms dp greedy	2700	768
1520C	Not Adjacent Matrix constructive algorithms	1000	34.9k
1520F2	Guess the K-th Zero (Hard version) binary search constructive algorithms data structures interactive	2200	3.4k
1519E	Off by One constructive algorithms dfs and similar geometry graphs sortings trees	2700	944
1517B	Morning Jogging constructive algorithms greedy sortings	1200	13.9k
1517C	Fillomino 2 constructive algorithms dfs and similar greedy implementation	1400	14.3k
1517G	Starry Night Camping constructive algorithms flows graphs	3300	753

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