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Problemset

174 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2225G	Simple Problem brute force graphs greedy number theory	2900	269
2222G	Statistics on Tree binary search brute force dfs and similar divide and conquer graphs trees	3100	215
2215C	Oriented Journey bitmasks brute force communication constructive algorithms graphs interactive trees	2200	819
2196F	Indivisible brute force constructive algorithms graphs	3300	118
2158D	Palindrome Flipping brute force constructive algorithms graphs implementation shortest paths strings	2000	3.4k
2156E	Best Time to Buy and Sell Stock binary search brute force data structures dp games graphs greedy	2500	1k
2155D	Batteries brute force constructive algorithms graph matchings graphs interactive math	1800	6.2k
2138C1	Maple and Tree Beauty (Easy Version) brute force dfs and similar dp graphs trees	1800	5.7k
2131H	Sea, You & copriMe brute force constructive algorithms graphs greedy math number theory	2600	909
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
2122D	Traffic Lights brute force data structures divide and conquer dp graphs greedy shortest paths	2400	2.8k
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
2117G	Omg Graph brute force dsu graphs greedy shortest paths sortings	1900	5.4k
2115B	Gellyfish and Camellia Japonica brute force constructive algorithms dfs and similar dp graphs greedy trees	2100	5k
2108C	Neo's Escape binary search brute force data structures dp dsu graphs greedy implementation	1500	15.1k
2091G	Gleb and Boating brute force constructive algorithms data structures dp graphs greedy math number theory shortest paths	2300	1.6k
2075D	Equalization bitmasks brute force dp graphs math	2000	6k
2063C	Remove Exactly Two brute force data structures dfs and similar dp graphs greedy sortings trees	1600	15.1k
2057E1	Another Exercise on Graphs (Easy Version) binary search brute force dp dsu graphs shortest paths sortings	2300	2.7k
2056B	Find the Permutation brute force dfs and similar graphs implementation sortings	1300	18.2k
2052D	DAG Serialization brute force graphs	2100	1.2k
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
2041D	Drunken Maze brute force dfs and similar graphs shortest paths	1700	5.3k
2041K	Trophic Balance Species binary search brute force dfs and similar graphs	3100	122
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
2020D	Connect the Dots brute force dp dsu graphs math trees	1800	7.6k
2006F	Dora's Paint brute force combinatorics constructive algorithms graphs implementation	3500	173
2004D	Colored Portals binary search brute force data structures graphs greedy implementation shortest paths	1600	13.5k
2002D1	DFS Checker (Easy Version) brute force data structures dfs and similar graphs hashing trees	1900	5.2k
2000G	Call During the Journey binary search brute force graphs greedy shortest paths	2100	3.2k
1996G	Penacony brute force data structures graphs greedy hashing	2200	2.4k
1994G	Minecraft bitmasks brute force dp graphs math	2600	1.7k
1985H1	Maximize the Largest Component (Easy Version) brute force data structures dfs and similar dsu graphs implementation	1700	7.4k
1979F	Kostyanych's Theorem brute force constructive algorithms graphs interactive	2900	451
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
1948C	Arrow Path brute force constructive algorithms dfs and similar dp graphs shortest paths	1300	21.5k
1948E	Clique Partition brute force constructive algorithms graphs greedy implementation	2100	3.6k
1929E	Sasha and the Happy Tree Cutting bitmasks brute force dfs and similar dp graphs greedy math trees	2300	2.1k
1928E	Modular Sequence brute force constructive algorithms dp graphs greedy math number theory	2300	2.3k
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
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
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
1863E	Speedrun brute force dfs and similar dp graphs greedy math sortings two pointers	2100	3.3k
1840F	Railguns brute force dfs and similar dp graphs	2200	2.2k
1826E	Walk the Runway bitmasks brute force data structures dp graphs implementation sortings	2400	2k
1823E	Removing Graph brute force dp games graphs math	2500	1.5k
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
1815B	Sum Graph brute force constructive algorithms graphs implementation interactive shortest paths trees	2000	3.7k
1810E	Monsters brute force data structures dfs and similar dsu graphs greedy	2100	4k
1804E	Routing bitmasks brute force dfs and similar dp graphs	2400	1.7k
1800E1	Unforgivable Curse (easy version) brute force constructive algorithms dsu graphs greedy strings	1400	15.9k
1800E2	Unforgivable Curse (hard version) brute force constructive algorithms dfs and similar dsu graphs greedy strings	1500	15.6k
1792F2	Graph Coloring (hard version) brute force combinatorics divide and conquer dp fft graphs	2900	558
1790F	Timofey and Black-White Tree brute force dfs and similar divide and conquer graphs greedy math shortest paths trees	2100	4.2k
1767E	Algebra Flash bitmasks brute force dp graphs math meet-in-the-middle trees	2500	1.3k
1761E	Make It Connected binary search brute force constructive algorithms dsu graphs greedy matrices trees two pointers	2400	2.2k
1741G	Kirill and Company bitmasks brute force dfs and similar dp flows graphs shortest paths	2200	2k
1737D	Ela and the Wiring Wizard brute force dp graphs greedy implementation shortest paths	2200	2.1k
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
1711B	Party brute force graphs	1300	14.5k
1709F	Multiset of Strings bitmasks brute force dp fft flows graphs math meet-in-the-middle trees	2500	729
1704E	Count Seconds brute force constructive algorithms dp graphs implementation math	2200	2.7k
1697E	Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math	2400	1.5k
1696F	Tree Recovery brute force constructive algorithms dfs and similar dsu graphs trees	2600	1.2k
1695C	Zero Path brute force data structures dp graphs greedy shortest paths	1700	14.5k
1689E	ANDfinity bitmasks brute force constructive algorithms dfs and similar dsu graphs	2500	1.4k
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
1654E	Arithmetic Operations brute force data structures graphs math	2300	2.4k
1647B	Madoka and the Elegant Gift brute force constructive algorithms graphs implementation	1200	17.2k
1625E1	Cats on the Upgrade (easy version) brute force data structures dfs and similar divide and conquer dp graphs trees	2500	1.2k
1616F	Tricolor Triangles brute force graphs math matrices	2900	765
1615C	Menorah brute force graphs greedy math	1600	9.3k
1607F	Robot on the Board 2 brute force dfs and similar graphs implementation	2300	2.2k
1580E	Railway Construction brute force constructive algorithms data structures graphs shortest paths	3400	126
1579F	Array Stabilization (AND version) brute force graphs math number theory shortest paths	1700	5.4k
1578K	Kingdom of Islands brute force graphs implementation	2800	435
1574D	The Strongest Build binary search brute force data structures dfs and similar graphs greedy hashing implementation	2000	4.9k
1572A	Book binary search brute force data structures dp graphs implementation sortings	1800	10.6k
1569F	Palindromic Hamiltonian Path brute force dfs and similar dp graphs hashing	3000	493
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

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