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Problemset

177 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2236G	Criterion in Burlandia binary search bitmasks brute force data structures dfs and similar divide and conquer implementation trees two pointers	2600	385
2234E	Vlad, Misha and Two Arrays brute force combinatorics dfs and similar divide and conquer math	2100	1.9k
2222G	Statistics on Tree binary search brute force dfs and similar divide and conquer graphs trees	3100	215
2183F	Jumping Man brute force combinatorics dfs and similar dp trees	2500	1.2k
2157G	Isaac's Queries bitmasks brute force constructive algorithms dfs and similar divide and conquer dp greedy interactive math probabilities	2800	672
2157H	Keygen 3 brute force combinatorics constructive algorithms dfs and similar math	3200	238
2138C1	Maple and Tree Beauty (Easy Version) brute force dfs and similar dp graphs trees	1800	5.7k
2138C2	Maple and Tree Beauty (Hard Version) bitmasks brute force dfs and similar dp fft trees	2000	3.6k
2131G	Wafu! bitmasks brute force data structures dfs and similar dp math	2000	3.9k
2127H	23 Rises Again brute force dfs and similar dp flows graph matchings graphs greedy implementation probabilities trees	3100	1.9k
2126F	1-1-1, Free Tree! brute force data structures dfs and similar graphs implementation trees	2000	4.4k
2118D1	Red Light, Green Light (Easy version) brute force dfs and similar dp graphs implementation number theory	1700	8.6k
2118D2	Red Light, Green Light (Hard version) binary search brute force data structures dfs and similar dp graphs implementation math number theory	2200	2.6k
2115B	Gellyfish and Camellia Japonica brute force constructive algorithms dfs and similar dp graphs greedy trees	2100	5k
2114F	Small Operations binary search brute force dfs and similar dp math number theory sortings	2000	5.6k
2107D	Apple Tree Traversing brute force dfs and similar greedy implementation trees	2100	3.6k
2104F	Numbers and Strings binary search brute force dfs and similar dp implementation math	2600	742
2086E	Zebra-like Numbers bitmasks brute force constructive algorithms dfs and similar dp greedy math	2400	1.7k
2067C	Devyatkino brute force dfs and similar greedy math	1500	13k
2063C	Remove Exactly Two brute force data structures dfs and similar dp graphs greedy sortings trees	1600	15.1k
2056B	Find the Permutation brute force dfs and similar graphs implementation sortings	1300	18.2k
2045M	Mirror Maze brute force dfs and similar graphs implementation	1800	2.3k
2043E	Matrix Transformation bitmasks brute force data structures dfs and similar graphs greedy implementation	2300	1.9k
2042E	Vertex Pairs binary search brute force data structures dfs and similar divide and conquer greedy implementation trees	2900	535
2041D	Drunken Maze brute force dfs and similar graphs shortest paths	1700	5.3k
2041F	Segmentation Folds brute force dfs and similar number theory	2400	520
2041K	Trophic Balance Species binary search brute force dfs and similar graphs	3100	122
2040D	Non Prime Tree brute force constructive algorithms dfs and similar greedy number theory trees two pointers	1900	5.9k
2035F	Tree Operations binary search brute force dfs and similar dp trees	2500	1.1k
2034H	Rayan vs. Rayaneh brute force dfs and similar dp number theory	3300	199
2033E	Sakurako, Kosuke, and the Permutation brute force data structures dfs and similar dsu graphs greedy math	1400	14.5k
2027C	Add Zeros brute force data structures dfs and similar dp graphs greedy	1500	14.1k
2021E1	Digital Village (Easy Version) brute force data structures dfs and similar dp dsu fft graphs greedy implementation math trees	2300	2k
2018C	Tree Pruning brute force dfs and similar greedy sortings trees	1700	10.2k
2006B	Iris and the Tree brute force data structures dfs and similar dsu math trees	1800	4.4k
2006E	Iris's Full Binary Tree brute force data structures dfs and similar trees	3100	328
2002D1	DFS Checker (Easy Version) brute force data structures dfs and similar graphs hashing trees	1900	5.2k
2002F1	Court Blue (Easy Version) brute force dfs and similar dp math number theory	2600	1k
2001C	Guess The Tree binary search brute force dfs and similar divide and conquer dsu greedy interactive trees	1500	13.1k
1988D	The Omnipotent Monster Killer brute force dfs and similar dp trees	2000	6.1k
1987E	Wonderful Tree! brute force data structures dfs and similar dsu greedy trees	2000	4.2k
1985H1	Maximize the Largest Component (Easy Version) brute force data structures dfs and similar dsu graphs implementation	1700	7.4k
1975D	Paint the Tree brute force dfs and similar dp greedy shortest paths trees	1700	7.6k
1975F	Set bitmasks brute force combinatorics dfs and similar divide and conquer dp math	2600	1.1k
1971F	Circle Perimeter binary search brute force dfs and similar geometry implementation math	1600	12.7k
1970G2	Min-Fund Prison (Medium) brute force dfs and similar dp graphs trees	2200	907
1968D	Permutation Game brute force dfs and similar games graphs greedy math	1300	17.7k
1955G	GCD on a grid brute force dfs and similar dp implementation math number theory	1900	6.1k
1949A	Grove brute force dfs and similar dp geometry probabilities	3300	223
1948C	Arrow Path brute force constructive algorithms dfs and similar dp graphs shortest paths	1300	21.5k
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks brute force combinatorics constructive algorithms dfs and similar math	2300	1.2k
1930F	Maximize the Difference bitmasks brute force dfs and similar	2700	979
1929E	Sasha and the Happy Tree Cutting bitmasks brute force dfs and similar dp graphs greedy math trees	2300	2.1k
1929F	Sasha and the Wedding Binary Search Tree brute force combinatorics data structures dfs and similar math trees	2300	2.4k
1926F	Vlad and Avoiding X bitmasks brute force dfs and similar dp implementation	2200	2.1k
1920F1	Smooth Sailing (Easy Version) binary search brute force data structures dfs and similar dsu graphs shortest paths	2500	1.3k
1914G1	Light Bulbs (Easy Version) brute force combinatorics dfs and similar dp dsu graphs math trees	2100	2.5k
1907G	Lights brute force constructive algorithms dfs and similar graphs greedy implementation	2200	2.4k
1898F	Vova Escapes the Matrix brute force dfs and similar divide and conquer shortest paths	2600	1k
1895E	Infinite Card Game binary search brute force data structures dfs and similar dp dsu games graphs greedy sortings two pointers	2300	1.9k
1893A	Anonymous Informant brute force dfs and similar graphs implementation	1400	15.3k
1889D	Game of Stacks brute force dfs and similar graphs implementation trees	3000	982
1879E	Interactive Game with Coloring brute force constructive algorithms dfs and similar graphs implementation interactive trees	2400	1.6k
1878G	wxhtzdy ORO Tree binary search bitmasks brute force data structures dfs and similar implementation trees	2300	1.5k
1874B	Jellyfish and Math bitmasks brute force dfs and similar dp graphs shortest paths	2400	1.4k
1867D	Cyclic Operations brute force constructive algorithms dfs and similar graphs greedy implementation	1800	6.9k
1867F	Most Different Tree brute force constructive algorithms dfs and similar greedy hashing	2700	554
1863E	Speedrun brute force dfs and similar dp graphs greedy math sortings two pointers	2100	3.3k
1858E1	Rollbacks (Easy Version) brute force data structures dfs and similar trees	2500	1.7k
1840F	Railguns brute force dfs and similar dp graphs	2200	2.2k
1829D	Gold Rush brute force dfs and similar dp implementation	1000	35k
1822F	Gardening Friends brute force dfs and similar dp graphs trees	1700	7.8k
1817B	Fish Graph brute force constructive algorithms dfs and similar graphs	1900	5.2k
1810E	Monsters brute force data structures dfs and similar dsu graphs greedy	2100	4k
1807F	Bouncy Ball brute force dfs and similar implementation	1700	7.4k
1806E	Tree Master brute force data structures dfs and similar trees	2200	3.5k
1805E	There Should Be a Lot of Maximums brute force data structures dfs and similar dp trees two pointers	2300	2k
1804E	Routing bitmasks brute force dfs and similar dp graphs	2400	1.7k
1800E2	Unforgivable Curse (hard version) brute force constructive algorithms dfs and similar dsu graphs greedy strings	1500	15.6k
1797D	Li Hua and Tree brute force data structures dfs and similar dp implementation trees	1900	4.7k
1792E	Divisors and Table brute force dfs and similar dp number theory	2400	1.6k
1790F	Timofey and Black-White Tree brute force dfs and similar divide and conquer graphs greedy math shortest paths trees	2100	4.2k
1771D	Hossam and (sub-)palindromic tree brute force data structures dfs and similar dp strings trees	2100	3.3k
1764F	Doremy's Experimental Tree brute force constructive algorithms dfs and similar dsu sortings trees	2500	1.3k
1741G	Kirill and Company bitmasks brute force dfs and similar dp flows graphs shortest paths	2200	2k
1726D	Edge Split brute force constructive algorithms dfs and similar dsu graphs probabilities trees	2000	4.2k
1721F	Matching Reduction brute force constructive algorithms dfs and similar flows graph matchings graphs interactive	2800	641
1696F	Tree Recovery brute force constructive algorithms dfs and similar dsu graphs trees	2600	1.2k
1695D1	Tree Queries (Easy Version) brute force constructive algorithms dfs and similar dp greedy trees	2200	2.5k
1689E	ANDfinity bitmasks brute force constructive algorithms dfs and similar dsu graphs	2500	1.4k
1681D	Required Length brute force dfs and similar dp hashing shortest paths	1700	10.9k
1662O	Circular Maze brute force dfs and similar graphs implementation	unrated	1.6k
1661B	Getting Zero bitmasks brute force dfs and similar dp graphs greedy shortest paths	1300	21.1k
1659E	AND-MEX Walk bitmasks brute force constructive algorithms dfs and similar dsu graphs	2200	2k
1651E	Sum of Matchings brute force combinatorics constructive algorithms dfs and similar graph matchings greedy math	2600	669
1625E1	Cats on the Upgrade (easy version) brute force data structures dfs and similar divide and conquer dp graphs trees	2500	1.2k
1623B	Game on Ranges brute force dfs and similar implementation sortings	1100	14.7k
1607F	Robot on the Board 2 brute force dfs and similar graphs implementation	2300	2.2k
1598A	Computer Game brute force dfs and similar dp implementation	800	25.9k
1598E	Staircases brute force combinatorics data structures dfs and similar dp implementation math	2100	2.5k

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