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Problemset

110 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
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
2172H	Shuffling Cards with Problem Solver 68! hashing string suffix structures strings	2500	311
2132G	Famous Choreographer hashing implementation strings	2600	531
2069D	Palindrome Shuffle binary search greedy hashing strings two pointers	1800	7.2k
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
2023C	C+K+S constructive algorithms dfs and similar graphs greedy hashing implementation strings	2400	1.4k
2010C2	Message Transmission Error (hard version) hashing string suffix structures strings two pointers	1700	4.8k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1984D	''a'' String Problem brute force hashing implementation math string suffix structures strings	2000	4k
1979D	Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings	1800	8k
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
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
1913F	Palindromic Problem binary search data structures hashing string suffix structures strings	2800	583
1909G	Pumping Lemma hashing strings	3000	694
1849C	Binary String Copying binary search brute force data structures hashing strings	1600	12.7k
1827C	Palindrome Partition binary search brute force data structures dp hashing strings	2600	1.8k
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
1771F	Hossam and Range Minimum Query binary search bitmasks data structures hashing probabilities strings trees	2500	1.7k
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
1654F	Minimal String Xoration bitmasks data structures divide and conquer greedy hashing sortings strings	2800	1.5k
1624E	Masha-forgetful brute force constructive algorithms dp hashing implementation strings	2000	4.7k
1608G	Alphabetic Tree binary search data structures dfs and similar hashing string suffix structures strings trees	3500	300
1598G	The Sum of Good Numbers hashing math string suffix structures strings	3200	441
1553B	Reverse String brute force dp hashing implementation strings	1300	15.6k
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
1535F	String Distance binary search brute force data structures hashing implementation strings	3000	701
1476E	Pattern Matching bitmasks data structures dfs and similar graphs hashing sortings strings	2300	2.8k
1469E	A Bit Similar bitmasks brute force hashing string suffix structures strings two pointers	2400	2.2k
1466G	Song of the Sirens combinatorics divide and conquer hashing math string suffix structures strings	2600	1.1k
1451C	String Equality dp greedy hashing implementation strings	1400	17.4k
1393E1	Twilight and Ancient Scroll (easier version) dp hashing implementation string suffix structures strings	2800	482
1393E2	Twilight and Ancient Scroll (harder version) dp hashing implementation string suffix structures strings two pointers	3200	521
1360F	Spy-string bitmasks brute force constructive algorithms dp hashing strings	1700	13.7k
1326D1	Prefix-Suffix Palindrome (Easy version) hashing string suffix structures strings	1500	13.4k
1326D2	Prefix-Suffix Palindrome (Hard version) binary search greedy hashing string suffix structures strings	1800	12k
1320D	Reachable Strings data structures hashing strings	2500	1.7k
1313E	Concatenation with intersection data structures hashing strings two pointers	2700	778
1207G	Indie Album data structures dfs and similar hashing string suffix structures strings trees	2700	1.3k
1200E	Compress Words brute force hashing implementation string suffix structures strings	2000	9.7k
1137B	Camp Schedule greedy hashing strings	1600	7.1k
1129C	Morse Code binary search data structures dp hashing sortings string suffix structures strings	2400	1k
1109B	Sasha and One More Name constructive algorithms hashing strings	1800	4.6k
1081H	Palindromic Magic data structures hashing strings	3500	134
1056E	Check Transcription brute force data structures hashing strings	2100	2.9k
1051E	Vasya and Big Integers binary search data structures dp hashing strings	2600	1.3k
1045I	Palindrome Pairs hashing strings	1600	5.6k
1043G	Speckled Band data structures divide and conquer hashing string suffix structures strings	3500	329
1017E	The Supersonic Rocket geometry hashing strings	2400	1.1k
1003F	Abbreviation dp hashing strings	2200	1.6k
985F	Isomorphic Strings hashing strings	2300	2.2k
963D	Frequency of String hashing string suffix structures strings	2500	2.9k
958A2	Death Stars (medium) hashing strings	2000	1.1k
903E	Swapping Characters brute force hashing implementation strings	2200	1.6k
856B	Similar Words dp hashing strings trees	2300	653
835D	Palindromic characteristics brute force dp hashing strings	1900	4.8k
825F	String Compression dp hashing string suffix structures strings	2400	2.1k
786D	Rap God data structures dfs and similar hashing strings trees	3400	174
778C	Peterson Polyglot brute force dfs and similar dsu hashing strings trees	2500	1k
762C	Two strings binary search hashing strings two pointers	2100	3.1k
757C	Felicity is Coming! data structures hashing sortings strings	1900	2.5k
727E	Games on a CD data structures hashing string suffix structures strings	2300	1.6k
710F	String Set Queries brute force data structures hashing interactive string suffix structures strings	2400	2.6k
633C	Spy Syndrome 2 data structures dp hashing implementation sortings string suffix structures strings	1900	3.4k
631D	Messenger data structures hashing implementation string suffix structures strings	2100	2.5k
613E	Puzzle Lover dp hashing strings	3200	541
611D	New Year and Ancient Prophecy dp hashing strings	2000	2.8k
607C	Marbles hashing strings	2500	855
601D	Acyclic Organic Compounds data structures dfs and similar dsu hashing strings trees	2400	1.3k
580E	Kefa and Watch data structures hashing strings	2500	2.7k
559B	Equivalent Strings divide and conquer hashing sortings strings	1700	11.8k
535D	Tavas and Malekas greedy hashing string suffix structures strings	1900	4.8k
533E	Correcting Mistakes constructive algorithms dp greedy hashing strings two pointers	1800	2.5k
533F	Encoding hashing string suffix structures strings	2400	981
526D	Om Nom and Necklace hashing string suffix structures strings	2200	2.5k
525A	Vitaliy and Pie greedy hashing strings	1100	16.6k
524F	And Yet Another Bracket Sequence data structures greedy hashing string suffix structures strings	2700	640
514C	Watto and Mechanism binary search data structures hashing string suffix structures strings	2000	8.4k
467D	Fedor and Essay dfs and similar dp graphs hashing strings	2400	2.1k
444D	DZY Loves Strings binary search hashing strings two pointers	2500	897
356E	Xenia and String Problem dp hashing implementation string suffix structures strings	3000	566
319D	Have You Ever Heard About the Word? greedy hashing string suffix structures strings	2800	787
316G1	Good Substrings hashing strings	1700	1.1k
291E	Tree-String Problem *special dfs and similar hashing strings	2000	1.6k
245H	Queries for Number of Palindromes dp hashing strings	1800	9.5k
213E	Two Permutations data structures hashing strings	2700	1k
196D	The Next Good String data structures greedy hashing strings	2800	644

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