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Problemset

414 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
2249C	Double-Rift Dial data structures dfs and similar dsu implementation two pointers	unrated	1k
2245E	Tom and Jerry dfs and similar dsu games trees	unrated	902
2244C	Stepan and Permutation constructive algorithms dfs and similar dsu greedy math number theory sortings	unrated	15.6k
2239E	The end of this world, data structures divide and conquer dsu graphs	3300	154
2234C	Vessels, Heights and Two Versions (Easy Version) dfs and similar dsu greedy implementation two pointers	1200	12k
2234F	Vessels, Heights and Two Versions (Hard Version) data structures dfs and similar dsu greedy implementation two pointers	1900	2.3k
2222F	Building Tree data structures divide and conquer dsu graphs implementation	2600	716
2211C2	Equal Multisets (Hard Version) constructive algorithms dsu greedy	1800	4.2k
2208D1	Tree Orientation (Easy Version) constructive algorithms dfs and similar dsu graphs greedy matrices trees	1800	4.8k
2208D2	Tree Orientation (Hard Version) dfs and similar dsu graphs greedy sortings trees	2200	2.1k
2207F	Hanabi binary search data structures dp dsu flows graph matchings graphs greedy	2900	315
2207G	Toothless constructive algorithms dfs and similar dsu	3300	185
2205E	Simons and Dividing the Rhythm combinatorics data structures dp dsu math string suffix structures strings	2100	1.8k
2205F	Simons and Reconstructing His Roads constructive algorithms data structures dsu graphs	2400	714
2190D	Prufer Vertex combinatorics dsu number theory probabilities trees	2500	1k
2187C	Jerry and Tom data structures dfs and similar dsu games graphs greedy trees	2300	1.5k
2184E	Exquisite Array combinatorics data structures dsu sortings	1800	6.2k
2176E	Remove at the lowest cost data structures dfs and similar dp dsu greedy implementation trees	2400	1.3k
2172J	Sliding Tiles data structures divide and conquer dsu	2300	606
2171D	Rae Taylor and Trees (easy version) binary search data structures dp dsu greedy implementation trees	1400	12.3k
2171F	Rae Taylor and Trees (hard version) binary search constructive algorithms data structures dp dsu greedy implementation trees	1600	7.6k
2164E	Journey data structures dfs and similar dsu graphs greedy	2300	3.6k
2159B	Rectangles brute force data structures dp dsu greedy implementation two pointers	2100	3.4k
2158E	Sink data structures divide and conquer dsu graphs implementation	2600	665
2157E	Adjusting Drones binary search brute force data structures dp dsu greedy implementation sortings	1900	4.6k
2155F	Juan's Colorful Tree data structures dfs and similar dsu graphs meet-in-the-middle trees	2800	745
2141H	Merging Vertices in a Graph *special dfs and similar dsu graphs	2700	85
2135C	By the Assignment binary search bitmasks combinatorics dfs and similar dsu graphs math	2000	5.4k
2129A	Double Perspective constructive algorithms dp dsu graphs greedy sortings	1300	18.3k
2127E	Ancient Tree constructive algorithms data structures dfs and similar dsu greedy trees	2100	4.4k
2126G1	Big Wins! (easy version) binary search data structures dp dsu two pointers	2200	2.5k
2126G2	Big Wins! (hard version) binary search data structures divide and conquer dsu trees two pointers	2400	1.2k
2117G	Omg Graph brute force dsu graphs greedy shortest paths sortings	1900	5.4k
2108C	Neo's Escape binary search brute force data structures dp dsu graphs greedy implementation	1500	15.1k
2106F	Goblin dfs and similar dp dsu greedy math	1900	4.5k
2104G	Modulo 3 data structures divide and conquer dsu graphs trees	2700	553
2097B	Baggage Claim combinatorics dfs and similar dp dsu graphs implementation math trees	2300	2k
2086C	Disappearing Permutation dfs and similar dp dsu graphs greedy implementation	1300	16.6k
2081D	MST in Modulo Graph constructive algorithms dsu graphs greedy math number theory sortings trees	2600	1.2k
2069F	Graph Inclusion data structures dfs and similar divide and conquer dsu graphs	2800	824
2068E	Porto Vs. Benfica data structures dfs and similar dsu graphs shortest paths	2800	384
2064E	Mycraft Sand Sort combinatorics data structures dsu greedy math sortings	2400	1.5k
2063F1	Counting Is Not Fun (Easy Version) combinatorics data structures dfs and similar dp dsu graphs hashing implementation math trees	2400	1.6k
2063F2	Counting Is Not Fun (Hard Version) combinatorics data structures dfs and similar dsu graphs implementation trees	2700	951
2060E	Graph Composition dfs and similar dsu graphs greedy	1500	12.7k
2057E1	Another Exercise on Graphs (Easy Version) binary search brute force dp dsu graphs shortest paths sortings	2300	2.7k
2057E2	Another Exercise on Graphs (hard version) binary search dfs and similar dp dsu graphs shortest paths sortings	2500	2k
2056E	Nested Segments combinatorics dfs and similar dp dsu math	2500	1.1k
2051G	Snakes bitmasks dp dsu graphs	2100	2.5k
2049F	MEX OR Mania bitmasks brute force data structures dsu implementation	2700	600
2044G2	Medium Demon Problem (hard version) dfs and similar dp dsu graphs implementation trees	1900	4k
2041J	Bottle Arrangement data structures divide and conquer dp dsu greedy	2700	273
2033D	Kousuke's Assignment data structures dp dsu greedy math	1300	18.6k
2033E	Sakurako, Kosuke, and the Permutation brute force data structures dfs and similar dsu graphs greedy math	1400	14.5k
2031D	Penchick and Desert Rabbit binary search data structures dfs and similar dp dsu greedy implementation two pointers	1700	10.1k
2029D	Cool Graph constructive algorithms data structures dfs and similar dsu graphs greedy trees	1900	4k
2022E1	Billetes MX (Easy Version) 2-sat binary search combinatorics constructive algorithms dfs and similar dsu graphs	2500	780
2022E2	Billetes MX (Hard Version) binary search combinatorics data structures dsu graphs	2600	730
2021E1	Digital Village (Easy Version) brute force data structures dfs and similar dp dsu fft graphs greedy implementation math trees	2300	2k
2021E2	Digital Village (Hard Version) data structures dp dsu graphs math trees	2500	1.3k
2021E3	Digital Village (Extreme Version) data structures dfs and similar dp dsu graphs greedy math trees	2800	725
2020D	Connect the Dots brute force dp dsu graphs math trees	1800	7.6k
2018D	Max Plus Min Plus Size data structures dp dsu greedy implementation matrices sortings	2200	2.2k
2018E1	Complex Segments (Easy Version) binary search data structures divide and conquer dsu greedy math sortings	3300	246
2018E2	Complex Segments (Hard Version) binary search data structures divide and conquer dsu greedy math sortings	3400	210
2008D	Sakurako's Hobby dp dsu graphs math	1100	23.9k
2006B	Iris and the Tree brute force data structures dfs and similar dsu math trees	1800	4.4k
2001C	Guess The Tree binary search brute force dfs and similar divide and conquer dsu greedy interactive trees	1500	13.1k
1994D	Funny Game constructive algorithms dsu graphs greedy math number theory trees	1900	7.7k
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
1985H2	Maximize the Largest Component (Hard Version) data structures dfs and similar dp dsu implementation	2200	2k
1981E	Turtle and Intersected Segments data structures dsu graphs greedy	2600	1.3k
1978F	Large Graph data structures dfs and similar dsu graphs number theory two pointers	2400	1.6k
1971G	XOUR data structures dsu sortings	1700	11.7k
1956F	Nene and the Passing Game constructive algorithms data structures dsu graphs sortings	3000	747
1954E	Chain Reaction binary search data structures dsu greedy implementation math number theory	2200	3k
1948G	MST with Matching bitmasks brute force dsu graph matchings trees	3100	976
1940A	Parallel Universes *special constructive algorithms dfs and similar dsu graphs	unrated	106
1940C	Burenka and Pether *special data structures dfs and similar divide and conquer dsu graphs sortings trees	unrated	44
1935F	Andrey's Tree binary search constructive algorithms data structures dfs and similar dsu greedy implementation trees	2800	634
1930D2	Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings	2100	3.1k
1927D	Find the Different Ones! binary search brute force data structures dp dsu greedy two pointers	1300	35.3k
1927F	Microcycle data structures dfs and similar dsu graphs greedy implementation sortings trees	1900	5.6k
1923E	Count Paths data structures dfs and similar dp dsu graphs trees	2000	5.3k
1922D	Berserk Monsters brute force data structures dsu implementation math	1900	6.9k
1920D	Array Repetition binary search brute force dsu implementation math	1900	6.7k
1920F1	Smooth Sailing (Easy Version) binary search brute force data structures dfs and similar dsu graphs shortest paths	2500	1.3k
1920F2	Smooth Sailing (Hard Version) binary search data structures dsu geometry graphs trees	3000	668
1919D	01 Tree constructive algorithms data structures dsu greedy sortings trees	2100	4.6k
1914G1	Light Bulbs (Easy Version) brute force combinatorics dfs and similar dp dsu graphs math trees	2100	2.5k
1909C	Heavy Intervals constructive algorithms data structures dsu greedy math sortings	1400	13.4k
1900E	Transitive Graph dfs and similar dp dsu graphs implementation	2100	2.7k
1899G	Unusual Entertainment data structures dfs and similar dsu shortest paths sortings trees two pointers	1900	4.1k
1895E	Infinite Card Game binary search brute force data structures dfs and similar dp dsu games graphs greedy sortings two pointers	2300	1.9k
1887D	Split binary search data structures divide and conquer dsu math trees two pointers	2700	1.3k
1876D	Lexichromatography combinatorics dfs and similar dsu graphs two pointers	2500	1.1k
1873H	Mad City dfs and similar dsu games graphs shortest paths trees	1700	9.7k
1872F	Selling a Menagerie dfs and similar dsu graphs implementation math	1800	7.7k
1859D	Andrey and Escape from Capygrad binary search data structures dp dsu greedy sortings	1800	8.1k

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