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Problemset

818 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
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
1800F	Dasha and Nightmares bitmasks hashing meet-in-the-middle strings	1900	4.9k
1799C	Double Lexicographically Minimum greedy strings	1700	7k
1796A	Typical Interview Problem brute force implementation strings	800	19.7k
1796B	Asterisk-Minor Template implementation strings	1000	18.5k
1795A	Two Towers brute force implementation strings	800	24.8k
1794A	Prefix and Suffix Array strings	800	19.1k
1791A	Codeforces Checking implementation strings	800	82.9k
1791D	Distinct Split brute force greedy strings	1000	52.4k
1790A	Polycarp and the Day of Pi implementation math strings	800	41.4k
1789B	Serval and Inversion Magic brute force implementation strings two pointers	800	17.7k
1789F	Serval and Brain Power bitmasks brute force dp greedy implementation strings	2700	1k
1781C	Equal Frequencies brute force constructive algorithms greedy implementation sortings strings	1600	11k
1779A	Hall of Fame constructive algorithms greedy strings	800	24.1k
1778C	Flexible String bitmasks brute force strings	1600	11.6k
1777F	Comfortably Numb bitmasks data structures divide and conquer strings trees	2400	1.5k
1776G	Another Wine Tasting Event combinatorics constructive algorithms math strings	2100	2.4k
1771D	Hossam and (sub-)palindromic tree brute force data structures dfs and similar dp strings trees	2100	3.3k
1771F	Hossam and Range Minimum Query binary search bitmasks data structures hashing probabilities strings trees	2500	1.7k
1760B	Atilla's Favorite Problem greedy implementation strings	800	54.2k
1759A	Yes-Yes? implementation strings	800	32.9k
1758A	SSeeeeiinngg DDoouubbllee constructive algorithms strings	800	27.2k
1750E	Bracket Cost binary search data structures divide and conquer dp greedy strings	2400	1.7k
1750F	Majority combinatorics dp math strings	2700	1.3k
1748B	Diverse Substrings brute force implementation strings	1400	17k
1742F	Smaller constructive algorithms greedy strings	1500	14.3k
1741A	Compare T-Shirt Sizes implementation strings	800	34k
1739F	Keyboard Design bitmasks data structures dp string suffix structures strings	2600	671
1738H	Palindrome Addicts data structures strings	3300	309
1737A	Ela Sorting Books greedy implementation strings	900	10.9k
1736D	Equal Binary Subsequences constructive algorithms geometry greedy implementation strings	2200	2.8k
1735C	Phase Shift dfs and similar dsu graphs greedy implementation strings	1400	11k
1730D	Prefixes and Suffixes constructive algorithms strings two pointers	2200	3.1k
1729B	Decode String greedy strings	800	32.7k
1729C	Jumping on Tiles constructive algorithms strings	1100	21.8k
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
1720D1	Xor-Subsequence (easy version) bitmasks brute force dp strings trees two pointers	1800	6.8k
1720D2	Xor-Subsequence (hard version) bitmasks data structures dp strings trees	2400	2.3k
1714D	Color with Occurrences brute force data structures dp greedy strings	1600	10.5k
1709C	Recover an RBS constructive algorithms greedy implementation strings	1800	10.5k
1706A	Another String Minimization Problem 2-sat constructive algorithms greedy string suffix structures strings	800	24.3k
1704G	Mio and Lucky Array constructive algorithms fft math strings	3500	168
1703A	YES or YES? brute force implementation strings	800	100.3k
1703C	Cypher brute force implementation strings	800	41.4k
1703D	Double Strings brute force data structures strings	1100	29.7k
1701E	Text Editor brute force dp greedy strings	2500	1.4k
1697C	awoo's Favorite Problem binary search constructive algorithms data structures greedy implementation strings two pointers	1400	15.9k
1691C	Sum of Substrings brute force constructive algorithms greedy math strings	1400	17.4k
1690F	Shifting String graphs math number theory strings	1700	9.2k
1688C	Manipulating History constructive algorithms greedy strings	1700	8.8k
1685B	Linguistics greedy implementation sortings strings	2000	3.7k
1684A	Digit Minimization constructive algorithms games math strings	800	25k
1682A	Palindromic Indices greedy strings	800	20k
1680C	Binary String binary search greedy strings two pointers	1600	11.2k
1679E	Typical Party in Dorm bitmasks combinatorics dp strings	2400	1.5k
1676C	Most Similar Words brute force greedy implementation math strings	800	35.4k
1675E	Replace With the Previous, Minimize dsu greedy strings	1500	12.2k
1674C	Infinite Replacement combinatorics implementation strings	1000	26.6k
1673A	Subtle Substring Subtraction games greedy strings	800	19.2k
1673B	A Perfectly Balanced String? brute force greedy strings	1100	23k
1670B	Dorms War brute force implementation strings	1100	13.5k
1669E	2-Letter Strings data structures math strings	1200	21.8k
1663F	In Every Generation... *special strings	unrated	387
1663G	Six Characters *special constructive algorithms strings	unrated	231
1662B	Toys greedy strings	unrated	153
1662D	Evolution of Weasels greedy implementation strings	unrated	2.2k
1660C	Get an Even String dp greedy strings	1300	22.3k
1660F1	Promising String (easy version) brute force implementation math strings	1700	8k
1660F2	Promising String (hard version) data structures implementation math strings	2100	3.2k
1659B	Bit Flipping bitmasks constructive algorithms greedy strings	1300	12.1k
1654B	Prefix Removals strings	800	16.9k
1654F	Minimal String Xoration bitmasks data structures divide and conquer greedy hashing sortings strings	2800	1.5k
1650A	Deletions of Two Adjacent Letters implementation strings	800	37.5k
1635D	Infinite Set bitmasks dp math matrices number theory strings	1800	7.1k
1634A	Reverse and Concatenate greedy strings	800	24.7k
1628B	Peculiar Movie Preferences greedy strings	1700	12.8k
1626B	Minor Reduction greedy strings	1100	24.1k
1624D	Palindromes Coloring binary search greedy sortings strings	1400	19.3k
1624E	Masha-forgetful brute force constructive algorithms dp hashing implementation strings	2000	4.7k
1623E	Middle Duplication data structures dfs and similar greedy strings trees	2500	1.3k
1619A	Square String? implementation strings	800	63.8k
1618F	Reverse bitmasks constructive algorithms dfs and similar implementation math strings	2000	4.8k
1617A	Forbidden Subsequence constructive algorithms greedy sortings strings	800	17k
1616B	Mirror in the String greedy strings	1100	20.8k
1616E	Lexicographically Small Enough brute force data structures greedy strings	2200	2.8k
1609B	William the Vigilant implementation strings	1100	12.2k
1608G	Alphabetic Tree binary search data structures dfs and similar hashing string suffix structures strings trees	3500	300
1607A	Linear Keyboard implementation strings	800	41.1k
1606A	AB Balance strings	900	39.8k
1605C	Dominant Character brute force greedy implementation strings	1400	19.1k
1598G	The Sum of Good Numbers hashing math string suffix structures strings	3200	441
1594C	Make Them Equal brute force greedy math strings	1200	30k
1584F	Strange LCS bitmasks dp graphs greedy strings	2600	1.2k
1582C	Grandma Capa Knits a Scarf brute force data structures greedy strings two pointers	1200	25.2k
1579A	Casimir's String Solitaire math strings	800	42.5k
1578H	Higher Order Functions implementation strings	1700	2.2k
1575A	Another Sorting Problem data structures sortings strings	1100	5.3k
1575H	Holiday Wall Ornaments dp strings	2200	799

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