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Problemset

59 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
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
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
2002D1	DFS Checker (Easy Version) brute force data structures dfs and similar graphs hashing trees	1900	5.2k
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
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
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
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
1923F	Shrink-Reverse binary search brute force greedy hashing implementation string suffix structures strings	2800	544
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
1827C	Palindrome Partition binary search brute force data structures dp hashing strings	2600	1.8k
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
1681D	Required Length brute force dfs and similar dp hashing shortest paths	1700	10.9k
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
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
1537E1	Erase and Extend (Easy Version) binary search brute force dp greedy hashing implementation string suffix structures strings two pointers	1600	16.9k
1535F	String Distance binary search brute force data structures hashing implementation strings	3000	701
1500A	Going Home brute force hashing implementation math	1800	9.6k
1493D	GCD of an Array brute force data structures hashing implementation math number theory sortings two pointers	2100	5.9k
1469E	A Bit Similar bitmasks brute force hashing string suffix structures strings two pointers	2400	2.2k
1394B	Boboniu Walks on Graph brute force dfs and similar graphs hashing	2300	2.2k
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
1286C2	Madhouse (Hard version) brute force constructive algorithms hashing interactive math	2800	767
1257F	Make Them Similar bitmasks brute force hashing meet-in-the-middle	2400	2.4k
1228D	Complete Tripartite brute force constructive algorithms graphs hashing implementation	1900	5.5k
1200E	Compress Words brute force hashing implementation string suffix structures strings	2000	9.7k
1175F	The Number of Subpermutations brute force data structures divide and conquer hashing math	2500	2.8k
1056E	Check Transcription brute force data structures hashing strings	2100	2.9k
903E	Swapping Characters brute force hashing implementation strings	2200	1.6k
898F	Restoring the Expression brute force hashing math	2300	1.5k
835D	Palindromic characteristics brute force dp hashing strings	1900	4.8k
778C	Peterson Polyglot brute force dfs and similar dsu hashing strings trees	2500	1k
710F	String Set Queries brute force data structures hashing interactive string suffix structures strings	2400	2.6k
633D	Fibonacci-ish brute force dp hashing implementation math	2000	3.1k
574B	Bear and Three Musketeers brute force dfs and similar graphs hashing	1500	8.4k
182D	Common Divisors brute force hashing implementation math strings	1400	9.4k
128B	String brute force constructive algorithms hashing implementation string suffix structures strings	2100	2.9k
113B	Petr# brute force data structures hashing strings	2000	3.3k
65D	Harry Potter and the Sorting Hat brute force dfs and similar hashing	2200	500

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