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Problemset

238 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1533D	String Searching *special hashing	unrated	514
1527C	Sequence Pair Weight hashing implementation math	1600	15.3k
1520D	Same Differences data structures hashing math	1200	68.1k
1500A	Going Home brute force hashing implementation math	1800	9.6k
1494E	A-Z Graph constructive algorithms data structures graphs hashing	2400	2.1k
1493D	GCD of an Array brute force data structures hashing implementation math number theory sortings two pointers	2100	5.9k
1476E	Pattern Matching bitmasks data structures dfs and similar graphs hashing sortings strings	2300	2.8k
1476G	Minimum Difference data structures hashing sortings two pointers	3100	871
1470B	Strange Definition bitmasks graphs hashing math number theory	1900	6.8k
1469E	A Bit Similar bitmasks brute force hashing string suffix structures strings two pointers	2400	2.2k
1468F	Full Turn geometry hashing number theory	1700	4.2k
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
1418G	Three Occurrences data structures divide and conquer hashing two pointers	2500	2.9k
1394B	Boboniu Walks on Graph brute force dfs and similar graphs hashing	2300	2.2k
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
1340F	Nastya and CBS brute force data structures hashing	3300	792
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
1322C	Instant Noodles graphs hashing math number theory	2300	2.8k
1320D	Reachable Strings data structures hashing strings	2500	1.7k
1313E	Concatenation with intersection data structures hashing strings two pointers	2700	778
1286C2	Madhouse (Hard version) brute force constructive algorithms hashing interactive math	2800	767
1284D	New Year and Conference binary search data structures hashing sortings	2100	3.4k
1277D	Let's Play the Words? data structures hashing implementation math	1900	3.3k
1257F	Make Them Similar bitmasks brute force hashing meet-in-the-middle	2400	2.4k
1252F	Regular Forestation hashing trees	2400	1.1k
1228D	Complete Tripartite brute force constructive algorithms graphs hashing implementation	1900	5.5k
1225D	Power Products hashing math number theory	1800	10.4k
1223F	Stack Exterminable Arrays data structures divide and conquer dp hashing	2600	2.3k
1214D	Treasure Island dfs and similar dp flows hashing	1900	7.2k
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
1182D	Complete Mirror constructive algorithms dfs and similar dp hashing implementation trees	2400	1k
1175F	The Number of Subpermutations brute force data structures divide and conquer hashing math	2500	2.8k
1166F	Vicky's Delivery Service data structures dsu graphs hashing	2400	847
1156G	Optimizer graphs greedy hashing implementation	2700	171
1137B	Camp Schedule greedy hashing strings	1600	7.1k
1133D	Zero Quantity Maximization hashing math number theory	1500	17.3k
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
1045B	Space Isaac hashing number theory	2400	625
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
961F	k-substrings binary search hashing string suffix structures	2700	966
958A2	Death Stars (medium) hashing strings	2000	1.1k
903E	Swapping Characters brute force hashing implementation strings	2200	1.6k
898F	Restoring the Expression brute force hashing math	2300	1.5k
877F	Ann and Books data structures flows hashing	2300	2.4k
869E	The Untended Antiquity data structures hashing	2400	2.2k
856B	Similar Words dp hashing strings trees	2300	653
847L	Berland SU Computer Network constructive algorithms dfs and similar graphs hashing trees	2400	363
835D	Palindromic characteristics brute force dp hashing strings	1900	4.8k
825F	String Compression dp hashing string suffix structures strings	2400	2.1k
822E	Liar binary search dp hashing string suffix structures	2400	1.2k
794D	Labelling Cities dfs and similar graphs hashing	2400	946
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
763D	Timofey and a flat tree data structures graphs hashing shortest paths trees	2900	682
762C	Two strings binary search hashing strings two pointers	2100	3.1k
757C	Felicity is Coming! data structures hashing sortings strings	1900	2.5k
733D	Kostya the Sculptor data structures hashing	1600	4.4k
727E	Games on a CD data structures hashing string suffix structures strings	2300	1.6k
724C	Ray Tracing greedy hashing implementation math number theory sortings	1800	2.3k
718D	Andrew and Chemistry dp hashing trees	2900	550
710F	String Set Queries brute force data structures hashing interactive string suffix structures strings	2400	2.6k
690F2	Tree of Life (medium) constructive algorithms hashing trees	2700	112
650D	Zip-line binary search data structures dp hashing	2600	1.7k
639C	Bear and Polynomials hashing implementation math	2200	1.3k
633C	Spy Syndrome 2 data structures dp hashing implementation sortings string suffix structures strings	1900	3.4k
633D	Fibonacci-ish brute force dp hashing implementation math	2000	3.1k
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
574B	Bear and Three Musketeers brute force dfs and similar graphs hashing	1500	8.4k
567E	President and Roads dfs and similar graphs hashing shortest paths	2200	2.3k
559B	Equivalent Strings divide and conquer hashing sortings strings	1700	11.8k
542D	Superhero's Job dfs and similar dp hashing math number theory	2600	541
535D	Tavas and Malekas greedy hashing string suffix structures strings	1900	4.8k
534E	Berland Local Positioning System constructive algorithms greedy hashing implementation	2400	413
534F	Simplified Nonogram bitmasks dp hashing meet-in-the-middle	2400	556
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
504E	Misha and LCP on Tree binary search dfs and similar hashing string suffix structures trees	3000	1.1k

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