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Problemset

238 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
2247F	Paths on a Grid data structures dp hashing	unrated	358
2225F	String Cutting binary search brute force greedy hashing string suffix structures strings	2600	762
2209E	A Trivial String Problem brute force dp hashing string suffix structures strings	2200	2k
2203F	Binary Search with One Swap binary search divide and conquer dp hashing math two pointers	2600	457
2201F1	Monotone Monochrome Matrices (Medium Version) data structures hashing	2900	315
2201F2	Monotone Monochrome Matrices (Hard Version) constructive algorithms data structures hashing math	2800	461
2178G	deCH OR Dations bitmasks data structures dp hashing probabilities	2800	630
2172H	Shuffling Cards with Problem Solver 68! hashing string suffix structures strings	2500	311
2150A	Incremental Path data structures hashing implementation	1300	13.3k
2148A	Sublime Sequence brute force hashing math	800	49.6k
2146E	Yet Another MEX Problem brute force constructive algorithms data structures divide and conquer greedy hashing	2300	2.2k
2135F	To the Infinity data structures hashing math trees	3500	381
2132G	Famous Choreographer hashing implementation strings	2600	531
2118F	Shifts and Swaps data structures graphs hashing trees	3100	299
2110D	Fewer Batteries binary search dfs and similar dp graphs greedy hashing	1700	8.8k
2069D	Palindrome Shuffle binary search greedy hashing strings two pointers	1800	7.2k
2063F1	Counting Is Not Fun (Easy Version) combinatorics data structures dfs and similar dp dsu graphs hashing implementation math trees	2400	1.6k
2059E1	Stop Gaming (Easy Version) brute force constructive algorithms greedy hashing strings	2500	907
2059E2	Stop Gaming (Hard Version) brute force constructive algorithms data structures hashing strings	2900	355
2055F	Cosmic Divide brute force geometry hashing math strings	3200	90
2053G	Naive String Splits binary search brute force greedy hashing math number theory strings	3400	228
2041I	Auto Complete binary search data structures hashing implementation sortings strings trees	2300	688
2038I	Polyathlon binary search data structures hashing string suffix structures strings	2500	758
2034E	Permutations Harmony combinatorics constructive algorithms greedy hashing math	2200	2.1k
2023C	C+K+S constructive algorithms dfs and similar graphs greedy hashing implementation strings	2400	1.4k
2020C	Bitwise Balancing bitmasks hashing implementation math schedules ternary search	1400	18.7k
2014H	Robin Hood Archery data structures divide and conquer greedy hashing	1900	6k
2010C2	Message Transmission Error (hard version) hashing string suffix structures strings two pointers	1700	4.8k
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
2002G	Lattice Optimizing bitmasks brute force hashing meet-in-the-middle	3400	292
1996G	Penacony brute force data structures graphs greedy hashing	2200	2.4k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1986G2	Permutation Problem (Hard Version) brute force data structures hashing math number theory	2500	1.5k
1984D	''a'' String Problem brute force hashing implementation math string suffix structures strings	2000	4k
1980E	Permutation of Rows and Columns constructive algorithms data structures greedy hashing implementation math matrices sortings	1600	13.3k
1979D	Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings	1800	8k
1977D	XORificator bitmasks brute force greedy hashing	2300	2.4k
1969F	Card Pairing dp greedy hashing implementation	3000	413
1968G1	Division + LCP (easy version) binary search data structures dp hashing string suffix structures strings	1900	5.4k
1968G2	Division + LCP (hard version) binary search brute force data structures dp hashing math string suffix structures strings	2200	2.6k
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
1951E	No Palindromes brute force constructive algorithms divide and conquer greedy hashing implementation math strings	2000	4.6k
1950G	Shuffling Songs bitmasks dfs and similar dp graphs hashing implementation strings	1900	6.3k
1943B	Non-Palindromic Substring hashing implementation math strings	2000	4.7k
1923F	Shrink-Reverse binary search brute force greedy hashing implementation string suffix structures strings	2800	544
1914G2	Light Bulbs (Hard Version) combinatorics data structures dfs and similar dp graphs hashing	2300	1.9k
1913F	Palindromic Problem binary search data structures hashing string suffix structures strings	2800	583
1909G	Pumping Lemma hashing strings	3000	694
1906B	Button Pressing bitmasks constructive algorithms hashing	2600	865
1899D	Yarik and Musical Notes hashing math number theory	1300	15.9k
1895C	Torn Lucky Ticket brute force dp hashing implementation math	1400	13.3k
1887C	Minimum Array binary search brute force constructive algorithms data structures greedy hashing two pointers	2400	2.3k
1867F	Most Different Tree brute force constructive algorithms dfs and similar greedy hashing	2700	554
1849C	Binary String Copying binary search brute force data structures hashing strings	1600	12.7k
1840E	Character Blocking data structures hashing implementation	1600	9.5k
1830C	Hyperregular Bracket Strings combinatorics greedy hashing math number theory sortings	2400	2.3k
1827C	Palindrome Partition binary search brute force data structures dp hashing strings	2600	1.8k
1801E	Gasoline prices data structures divide and conquer dsu hashing trees	3000	748
1800D	Remove Two Letters data structures greedy hashing strings	1200	30.2k
1800F	Dasha and Nightmares bitmasks hashing meet-in-the-middle strings	1900	4.9k
1800G	Symmetree dfs and similar hashing implementation trees	2200	2.6k
1794E	Labeling the Tree with Distances data structures dp greedy hashing implementation trees	2400	1.6k
1792D	Fixed Prefix Permutations binary search bitmasks data structures hashing math sortings	1700	8.3k
1780G	Delicious Dessert binary search dsu hashing math number theory string suffix structures	2400	1k
1773B	BinCoin binary search divide and conquer hashing implementation probabilities trees	2200	982
1771F	Hossam and Range Minimum Query binary search bitmasks data structures hashing probabilities strings trees	2500	1.7k
1746F	Kazaee data structures hashing probabilities	2800	2.8k
1743G	Antifibonacci Cut bitmasks combinatorics constructive algorithms data structures dp hashing math	3000	381
1735D	Meta-set brute force combinatorics data structures hashing math	1700	7.1k
1731C	Even Subarrays bitmasks brute force hashing math number theory	1700	12.5k
1729F	Kirei and the Linear Function hashing math	1900	4.6k
1729G	Cut Substrings combinatorics dp hashing strings two pointers	2100	2.6k
1721E	Prefix Function Queries dfs and similar dp hashing string suffix structures strings trees	2200	2.7k
1704D	Magical Array constructive algorithms hashing implementation math	1900	5.4k
1681D	Required Length brute force dfs and similar dp hashing shortest paths	1700	10.9k
1671E	Preorder combinatorics divide and conquer dp dsu hashing sortings trees	2100	3.3k
1658E	Gojou and Matrix Game data structures dp games hashing implementation math number theory sortings	2500	1.3k
1654F	Minimal String Xoration bitmasks data structures divide and conquer greedy hashing sortings strings	2800	1.5k
1650C	Weight of the System of Nested Segments greedy hashing implementation sortings	1200	18.7k
1641D	Two Arrays bitmasks brute force combinatorics greedy hashing math two pointers	2700	1.6k
1634F	Fibonacci Additions brute force data structures hashing implementation math	2700	2k
1624E	Masha-forgetful brute force constructive algorithms dp hashing implementation strings	2000	4.7k
1622F	Quadratic Set constructive algorithms hashing math number theory	2900	942
1621I	Two Sequences data structures hashing string suffix structures	3500	150
1610G	AmShZ Wins a Bet data structures greedy hashing	3300	667
1608G	Alphabetic Tree binary search data structures dfs and similar hashing string suffix structures strings trees	3500	300
1599F	Mars hashing	2700	428
1598G	The Sum of Good Numbers hashing math string suffix structures strings	3200	441
1574D	The Strongest Build binary search brute force data structures dfs and similar graphs greedy hashing implementation	2000	4.9k
1569E	Playoff Restoration bitmasks brute force hashing implementation meet-in-the-middle	2600	901
1569F	Palindromic Hamiltonian Path brute force dfs and similar dp graphs hashing	3000	493
1553B	Reverse String brute force dp hashing implementation strings	1300	15.6k
1553G	Common Divisor Graph brute force constructive algorithms dsu graphs hashing math number theory	2700	1.3k
1538E	Funny Substrings data structures hashing implementation matrices strings	2100	3.3k
1537E1	Erase and Extend (Easy Version) binary search brute force dp greedy hashing implementation string suffix structures strings two pointers	1600	16.9k
1537E2	Erase and Extend (Hard Version) binary search data structures greedy hashing string suffix structures strings two pointers	2200	6.4k
1536C	Diluc and Kaeya data structures dp hashing number theory	1500	16.3k
1535F	String Distance binary search brute force data structures hashing implementation strings	3000	701

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