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Problemset

353 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2242F	Summer Vacation data structures dp probabilities trees	2700	385
2237H	Slime and Queries data structures greedy trees	3500	124
2236G	Criterion in Burlandia binary search bitmasks brute force data structures dfs and similar divide and conquer implementation trees two pointers	2600	385
2229E	Deconstruction Tree combinatorics data structures dp graphs trees	2100	2k
2223E	Zhily and Permutation data structures divide and conquer trees	3500	56
2219D	MEX Replacement on Tree data structures implementation math trees	2700	533
2210F	A Simple Problem binary search data structures greedy math trees	2700	263
2209F	Dynamic Values And Maximum Sum data structures greedy implementation trees	2700	460
2206D	Christmas Tree Un-decoration data structures dp trees	2600	322
2205D	Simons and Beating Peaks data structures divide and conquer dp greedy implementation trees	1700	5.6k
2195G	Idiot First Search and Queries binary search data structures dp graphs trees	2300	1.2k
2194F2	Again Trees... (hard version) bitmasks data structures dfs and similar dp fft trees	3000	223
2189F	Zhora the Vacuum Cleaner data structures dfs and similar dp greedy implementation sortings trees	2800	254
2187C	Jerry and Tom data structures dfs and similar dsu games graphs greedy trees	2300	1.5k
2187F1	Al Fine (Maximizing Version) binary search data structures divide and conquer trees	3100	256
2183D2	Tree Coloring (Hard Version) combinatorics constructive algorithms data structures dfs and similar greedy implementation trees	2100	2.6k
2182G	Short Garland combinatorics data structures dfs and similar dp trees	2800	383
2176E	Remove at the lowest cost data structures dfs and similar dp dsu greedy implementation trees	2400	1.3k
2174D	Secret Message data structures dp greedy trees	3400	317
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
2164F2	Chain Prefix Rank (Hard Version) binary search combinatorics data structures dfs and similar dp graphs math trees	2900	648
2156F2	Strange Operation (Hard Version) data structures greedy trees	3000	266
2155F	Juan's Colorful Tree data structures dfs and similar dsu graphs meet-in-the-middle trees	2800	745
2153F	Odd Queries on Odd Array bitmasks brute force data structures implementation trees	2900	337
2152G	Query Jungle data structures implementation math matrices trees	2900	2.7k
2135F	To the Infinity data structures hashing math trees	3500	381
2131D	Arboris Contractio data structures graphs greedy trees	1400	14.9k
2127E	Ancient Tree constructive algorithms data structures dfs and similar dsu greedy trees	2100	4.4k
2126F	1-1-1, Free Tree! brute force data structures dfs and similar graphs implementation trees	2000	4.4k
2126G2	Big Wins! (hard version) binary search data structures divide and conquer dsu trees two pointers	2400	1.2k
2118F	Shifts and Swaps data structures graphs hashing trees	3100	299
2104G	Modulo 3 data structures divide and conquer dsu graphs trees	2700	553
2101E	Kia Bakes a Cake data structures dp greedy trees	3100	2k
2093G	Shorten the Array binary search bitmasks data structures dfs and similar greedy strings trees two pointers	1900	4k
2071C	Trapmigiano Reggiano constructive algorithms data structures dfs and similar dp greedy sortings trees	1700	9.9k
2065F	Skibidus and Slay data structures dfs and similar graphs greedy trees	1700	7.3k
2064D	Eating binary search bitmasks brute force data structures dp greedy trees two pointers	1900	6k
2063C	Remove Exactly Two brute force data structures dfs and similar dp graphs greedy sortings trees	1600	15.1k
2063E	Triangle Tree data structures dfs and similar dp greedy trees	2300	2.4k
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
2062E1	The Game (Easy Version) data structures dfs and similar games graphs greedy trees	2000	4.4k
2062E2	The Game (Hard Version) data structures dfs and similar games graphs implementation trees	3000	464
2048F	Kevin and Math Class brute force data structures divide and conquer dp implementation math trees	2500	1.3k
2042E	Vertex Pairs binary search brute force data structures dfs and similar divide and conquer greedy implementation trees	2900	535
2041I	Auto Complete binary search data structures hashing implementation sortings strings trees	2300	688
2033G	Sakurako and Chefir data structures dfs and similar dp greedy trees	2200	2k
2032D	Genokraken constructive algorithms data structures graphs greedy implementation interactive trees two pointers	1800	6.3k
2031E	Penchick and Chloe's Trees data structures dfs and similar dp greedy implementation math sortings trees	2100	2.8k
2029D	Cool Graph constructive algorithms data structures dfs and similar dsu graphs greedy trees	1900	4k
2026F	Bermart Ice Cream data structures dfs and similar divide and conquer dp implementation trees	2700	413
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
2013F1	Game in Tree (Easy Version) binary search brute force data structures dp games greedy implementation trees	2700	679
2013F2	Game in Tree (Hard Version) binary search data structures trees	3500	171
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
2002D2	DFS Checker (Hard Version) binary search data structures dfs and similar graphs hashing trees	2300	2.9k
1990E1	Catch the Mole(Easy Version) binary search data structures dfs and similar interactive trees	2500	1.2k
1990E2	Catch the Mole(Hard Version) binary search data structures dfs and similar divide and conquer interactive trees	2600	1.2k
1987E	Wonderful Tree! brute force data structures dfs and similar dsu greedy trees	2000	4.2k
1981F	Turtle and Paths on a Tree data structures dp trees	3000	358
1980G	Yasya and the Mysterious Tree bitmasks data structures dfs and similar graphs greedy strings trees	2300	1.8k
1976E	Splittable Permutations combinatorics data structures dfs and similar greedy math trees	2500	1.3k
1976F	Remove Bridges data structures dfs and similar dp greedy sortings trees	2800	893
1975E	Chain Queries binary search data structures dfs and similar implementation trees	2100	2.9k
1967C	Fenwick Tree bitmasks brute force combinatorics data structures dp math trees	2300	2.3k
1957F1	Frequency Mismatch (Easy Version) binary search data structures divide and conquer hashing probabilities trees	2600	706
1957F2	Frequency Mismatch (Hard Version) binary search data structures dfs and similar hashing probabilities trees	2700	659
1942H	Farmer John's Favorite Intern data structures dp flows trees	3500	262
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
1930G	Prefix Max Set Counting data structures dp trees	3100	531
1929F	Sasha and the Wedding Binary Search Tree brute force combinatorics data structures dfs and similar math trees	2300	2.4k
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
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
1916E	Happy Life in University data structures dfs and similar greedy trees	2300	2.7k
1913D	Array Collapse data structures divide and conquer dp trees	2100	4.3k
1904E	Tree Queries data structures dfs and similar graphs implementation trees	2500	1.4k
1904F	Beautiful Tree data structures dfs and similar graphs implementation trees	2800	581
1903F	Babysitting 2-sat binary search data structures graphs trees	2500	976
1902E	Collapsing Strings data structures strings trees	1900	5.9k
1902F	Trees and XOR Queries Again data structures dfs and similar divide and conquer graphs implementation math trees	2400	1.5k
1899G	Unusual Entertainment data structures dfs and similar dsu shortest paths sortings trees two pointers	1900	4.1k
1895D	XOR Construction bitmasks constructive algorithms data structures math string suffix structures trees	1900	7.2k
1891F	A Growing Tree data structures dfs and similar trees	2000	4.9k
1889F	Doremy's Average Tree data structures dp greedy trees	3500	208
1887D	Split binary search data structures divide and conquer dsu math trees two pointers	2700	1.3k
1878G	wxhtzdy ORO Tree binary search bitmasks brute force data structures dfs and similar implementation trees	2300	1.5k
1876E	Ball-Stackable constructive algorithms data structures dp trees	3300	373
1876G	Clubstep binary search brute force data structures greedy trees	3500	295
1870H	Standard Graph Problem data structures graphs greedy trees	3500	127
1866K	Keen Tree Calculation binary search data structures dp geometry graphs implementation trees	2500	585
1864E	Guess Game bitmasks data structures games math probabilities sortings strings trees	2100	3.1k
1861C	Queries for the Array data structures dfs and similar implementation strings trees	1600	12.5k

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