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Problemset

171 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
2200C	Specialty String brute force greedy strings	900	24.2k
2192A	String Rotation Game brute force strings	800	18.9k
2166A	Same Difference brute force greedy strings	800	23.6k
2158D	Palindrome Flipping brute force constructive algorithms graphs implementation shortest paths strings	2000	3.4k
2144F	Bracket Groups brute force constructive algorithms dp string suffix structures strings	2700	1.1k
2132A	Homework brute force implementation strings	800	45k
2092D	Mishkin Energizer brute force constructive algorithms greedy implementation strings	1800	7k
2092F	Andryusha and CCB brute force constructive algorithms greedy math number theory strings	2900	438
2086D	Even String brute force combinatorics dp math strings	1700	8.6k
2068F	Mascot Naming brute force greedy implementation strings	1900	1.5k
2065A	Skibidus and Amog'u brute force constructive algorithms greedy implementation strings	800	56.9k
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
2052E	Expression Correction brute force expression parsing strings	1900	1.5k
2050D	Digital string maximization brute force greedy math strings	1300	19.4k
2048C	Kevin and Binary Strings bitmasks brute force greedy implementation strings	1200	15.4k
2047B	Replace Character brute force combinatorics greedy strings	900	19.6k
2010C1	Message Transmission Error (easy version) brute force strings	1400	9.4k
2008B	Square or Not brute force math strings	800	33.3k
2008E	Alternating String brute force data structures dp greedy implementation strings	1500	13.8k
1997A	Strong Password brute force implementation strings	800	33.7k
1995D	Cases bitmasks brute force dp strings	2300	3k
1992E	Novice's Mistake brute force constructive algorithms implementation math strings	1700	11k
1989B	Substring and Subsequence brute force greedy strings	1200	23.6k
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
1970D1	Arithmancy (Easy) brute force constructive algorithms interactive strings	2100	967
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
1950E	Nearly Shortest Repeating Substring brute force implementation number theory strings	1500	17.7k
1948D	Tandem Repeats? brute force strings two pointers	1700	12.8k
1931A	Recovering a Small String brute force strings	800	40.3k
1930D1	Sum over all Substrings (Easy Version) brute force dp greedy strings	1800	4.9k
1923F	Shrink-Reverse binary search brute force greedy hashing implementation string suffix structures strings	2800	544
1917B	Erase First or Second Letter brute force combinatorics data structures dp strings	1100	38.7k
1898A	Milica and String brute force implementation strings	800	17.6k
1881A	Don't Try to Count brute force strings	800	64.3k
1849C	Binary String Copying binary search brute force data structures hashing strings	1600	12.7k
1846B	Rudolph and Tic-Tac-Toe brute force implementation strings	800	29.1k
1841C	Ranom Numbers brute force dp greedy math strings	1800	9.2k
1827C	Palindrome Partition binary search brute force data structures dp hashing strings	2600	1.8k
1821C	Tear It Apart brute force implementation math strings	1300	16.4k
1821E	Rearrange Brackets brute force dp greedy sortings strings	2100	2.8k
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
1796A	Typical Interview Problem brute force implementation strings	800	19.7k
1795A	Two Towers brute force implementation strings	800	24.8k
1791D	Distinct Split brute force greedy strings	1000	52.4k
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
1778C	Flexible String bitmasks brute force strings	1600	11.6k
1771D	Hossam and (sub-)palindromic tree brute force data structures dfs and similar dp strings trees	2100	3.3k
1748B	Diverse Substrings brute force implementation strings	1400	17k
1720D1	Xor-Subsequence (easy version) bitmasks brute force dp strings trees two pointers	1800	6.8k
1714D	Color with Occurrences brute force data structures dp greedy strings	1600	10.5k
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
1691C	Sum of Substrings brute force constructive algorithms greedy math strings	1400	17.4k
1676C	Most Similar Words brute force greedy implementation math strings	800	35.4k
1673B	A Perfectly Balanced String? brute force greedy strings	1100	23k
1670B	Dorms War brute force implementation strings	1100	13.5k
1660F1	Promising String (easy version) brute force implementation math strings	1700	8k
1624E	Masha-forgetful brute force constructive algorithms dp hashing implementation strings	2000	4.7k
1616E	Lexicographically Small Enough brute force data structures greedy strings	2200	2.8k
1605C	Dominant Character brute force greedy implementation strings	1400	19.1k
1594C	Make Them Equal brute force greedy math strings	1200	30k
1582C	Grandma Capa Knits a Scarf brute force data structures greedy strings two pointers	1200	25.2k
1555D	Say No to Palindromes brute force constructive algorithms dp strings	1600	16k
1553B	Reverse String brute force dp hashing implementation strings	1300	15.6k
1550E	Stringforces binary search bitmasks brute force dp strings two pointers	2500	1.9k
1537E1	Erase and Extend (Easy Version) binary search brute force dp greedy hashing implementation string suffix structures strings two pointers	1600	16.9k
1536B	Prinzessin der Verurteilung brute force constructive algorithms strings	1200	26.2k
1535F	String Distance binary search brute force data structures hashing implementation strings	3000	701
1526D	Kill Anton brute force constructive algorithms data structures math strings	2200	2.8k
1511D	Min Cost String brute force constructive algorithms graphs greedy strings	1600	12.6k
1511F	Chainword brute force data structures dp matrices string suffix structures strings	2700	598
1506C	Double-ended Strings brute force implementation strings	1000	37.5k
1506G	Maximize the Remaining String brute force data structures dp greedy strings	2000	4.9k
1496A	Split it! brute force constructive algorithms greedy strings	900	22.4k
1493C	K-beautiful Strings binary search brute force constructive algorithms greedy strings	2000	5k
1473B	String LCM brute force math number theory strings	1000	35.5k
1469E	A Bit Similar bitmasks brute force hashing string suffix structures strings two pointers	2400	2.2k
1428C	ABBB brute force data structures greedy strings	1100	22.9k
1411D	Grime Zoo brute force greedy implementation strings	2100	2.8k
1400F	x-prime Substrings brute force dfs and similar dp string suffix structures strings	2800	1.2k
1379A	Acacius and String brute force implementation strings	1500	12.4k
1368B	Codeforces Subsequences brute force constructive algorithms greedy math strings	1500	21.7k
1360F	Spy-string bitmasks brute force constructive algorithms dp hashing strings	1700	13.7k
1331F	Elementary! *special brute force dp strings	unrated	607
1324B	Yet Another Palindrome Problem brute force strings	1100	31k
1321C	Remove Adjacent brute force constructive algorithms greedy strings	1600	10.6k
1316B	String Modification brute force constructive algorithms implementation sortings strings	1400	11.8k
1307C	Cow and Message brute force dp math strings	1500	12.8k

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