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Problemset

55 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2242A	Bigrams sortings strings	800	22.8k
2167B	Your Name sortings strings	800	54.1k
2125A	Difficult Contest constructive algorithms implementation sortings strings	800	28.5k
2111E	Changing the String binary search data structures greedy implementation sortings strings	1900	5.5k
2069E	A, B, AB and BA constructive algorithms greedy sortings strings	2300	2k
2045H	Missing Separators dp sortings string suffix structures strings	2200	812
2041I	Auto Complete binary search data structures hashing implementation sortings strings trees	2300	688
2003C	Turtle and Good Pairs constructive algorithms greedy sortings strings	1200	22k
1996C	Sort dp greedy sortings strings	1200	28.5k
1976A	Verify Password implementation sortings strings	800	32.9k
1974B	Symmetric Encoding implementation sortings strings	800	34.8k
1971D	Binary Cut dp greedy implementation sortings strings	1100	31k
1898E	Sofia and Strings data structures greedy sortings strings two pointers	2200	2.8k
1864B	Swap and Reverse constructive algorithms greedy sortings strings	1100	16.8k
1864E	Guess Game bitmasks data structures games math probabilities sortings strings trees	2100	3.1k
1821E	Rearrange Brackets brute force dp greedy sortings strings	2100	2.8k
1781C	Equal Frequencies brute force constructive algorithms greedy implementation sortings strings	1600	11k
1685B	Linguistics greedy implementation sortings strings	2000	3.7k
1654F	Minimal String Xoration bitmasks data structures divide and conquer greedy hashing sortings strings	2800	1.5k
1624D	Palindromes Coloring binary search greedy sortings strings	1400	19.3k
1617A	Forbidden Subsequence constructive algorithms greedy sortings strings	800	17k
1575A	Another Sorting Problem data structures sortings strings	1100	5.3k
1560E	Polycarp and String Transformation binary search implementation sortings strings	1800	8.9k
1552A	Subsequence Permutation sortings strings	800	25.5k
1551C	Interesting Story greedy sortings strings	1500	14.7k
1476E	Pattern Matching bitmasks data structures dfs and similar graphs hashing sortings strings	2300	2.8k
1416C	XOR Inverse bitmasks data structures divide and conquer dp greedy math sortings strings trees	2000	5.2k
1383A	String Transformation 1 dsu graphs greedy sortings strings trees two pointers	1700	11.4k
1348C	Phoenix and Distribution constructive algorithms greedy sortings strings	1600	15.6k
1316B	String Modification brute force constructive algorithms implementation sortings strings	1400	11.8k
1257C	Dominated Subarray greedy implementation sortings strings two pointers	1200	17.4k
1256F	Equalizing Two Strings constructive algorithms sortings strings	2000	3.7k
1220A	Cards implementation sortings strings	800	33.1k
1156B	Ugly Pairs dfs and similar greedy implementation sortings strings	1800	6.6k
1155A	Reverse a Substring implementation sortings strings	1000	27.8k
1129C	Morse Code binary search data structures dp hashing sortings string suffix structures strings	2400	1k
1093B	Letters Rearranging constructive algorithms greedy sortings strings	900	17.8k
988B	Substrings Sort sortings strings	1100	20.5k
827A	String Reconstruction data structures greedy sortings strings	1700	4.4k
757C	Felicity is Coming! data structures hashing sortings strings	1900	2.5k
755B	PolandBall and Game binary search data structures games greedy sortings strings	1100	13k
721B	Passwords implementation math sortings strings	1100	12.5k
644C	Hostname Aliases *special binary search data structures implementation sortings strings	2100	1k
633C	Spy Syndrome 2 data structures dp hashing implementation sortings string suffix structures strings	1900	3.4k
632C	The Smallest String Concatenation sortings strings	1700	10.9k
616F	Expensive Strings data structures sortings string suffix structures strings	2700	775
559B	Equivalent Strings divide and conquer hashing sortings strings	1700	11.8k
558E	A Simple Task data structures sortings strings	2300	7.7k
339A	Helpful Maths greedy implementation sortings strings	800	283.9k
178F2	Representative Sampling dp sortings strings	2200	392
141A	Amusing Joke implementation sortings strings	800	103.9k
118C	Fancy Number brute force greedy sortings strings	1900	2.9k
63A	Sinking Ship implementation sortings strings	900	13.6k
34C	Page Numbers expression parsing implementation sortings strings	1300	4.9k
5C	Longest Regular Bracket Sequence constructive algorithms data structures dp greedy sortings strings	1900	18.8k

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