strings - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	387	P1776G Another Wine Tasting Event combinatorics constructive algorithms math strings *2100	0 / 0	7
	367	P1777F Comfortably Numb bitmasks data structures divide and conquer strings trees *2400	0 / 0	9
	363	P1778C Flexible String bitmasks brute force strings *1600	0 / 0	5
	357	P1779A Hall of Fame constructive algorithms greedy strings *800	0 / 0	3
	332	P1781C Equal Frequencies brute force constructive algorithms greedy implementation sortings strings *1600	0 / 0	5
	280	P1789B Serval and Inversion Magic brute force implementation strings two pointers *800	0 / 0	3
	276	P1789F Serval and Brain Power bitmasks brute force dp greedy implementation strings *2700	0 / 0	10
	275	P1790A Polycarp and the Day of Pi implementation math strings *800	0 / 0	3
	268	P1791A Codeforces Checking implementation strings *800	1 / 1	3
	264	P1791D Distinct Split brute force greedy strings *1000	1 / 1	3
	237	P1794A Prefix and Suffix Array strings *800	0 / 0	3
	230	P1795A Two Towers brute force implementation strings *800	1 / 1	3
	219	P1796A Typical Interview Problem brute force implementation strings *800	0 / 13	3
	218	P1796B Asterisk-Minor Template implementation strings *1000	0 / 0	3
	189	P1799C Double Lexicographically Minimum greedy strings *1700	0 / 0	5
	179	P1800A Is It a Cat? implementation strings *800	0 / 0	3
	177	P1800B Count the Number of Pairs greedy strings *1000	0 / 0	3
	172	P1800D Remove Two Letters data structures greedy hashing strings *1200	0 / 0	4
	171	P1800E1 Unforgivable Curse (easy version) brute force constructive algorithms dsu graphs greedy strings *1400	0 / 0	4
	169	P1800E2 Unforgivable Curse (hard version) brute force constructive algorithms dfs and similar dsu graphs greedy strings *1500	0 / 0	5
	168	P1800F Dasha and Nightmares bitmasks hashing meet-in-the-middle strings *1900	0 / 0	6
	155	P1801G A task for substrings data structures string suffix structures strings *3400	0 / 0	10
	140	P1805B The String Has a Target greedy strings *800	0 / 0	3
	121	P1807C Find and Replace greedy implementation strings *800	0 / 0	3
	68	P1811A Insert Digit greedy math strings *800	0 / 0	3
	42	P1815E Bosco and Particle dp math number theory strings *3100	0 / 0	10
	9797	P1817F Entangled Substrings string suffix structures strings *3500	0 / 0	10
	28	P1820A Yura's New Name implementation strings *800	2 / 2	3
	26	P1820B JoJo's Incredible Adventures math strings two pointers *1100	2 / 3	3
	19	P1821C Tear It Apart brute force implementation math strings	10 / 27	6
	16	P1821E Rearrange Brackets brute force dp greedy sortings strings	1 / 1	10
	5	P1822E Making Anti-Palindromes greedy math strings	0 / 0	(None)
	3635	P1823D Unique Palindromes constructive algorithms strings	0 / 0	(None)
	9788	P1825A LuoTianyi and the Palindrome String brute force greedy implementation strings	1 / 1	10
	9820	P1827C Palindrome Partition binary search brute force data structures dp hashing strings *2600	0 / 0	10
	9778	P1829A Love Story implementation strings	0 / 0	(None)
	9814	P1832A New Palindrome strings *800	0 / 0	3
	9839	P1833A Musical Puzzle implementation strings *800	0 / 0	3
	9869	P1838D Bracket Walk data structures greedy strings *2100	0 / 0	7
	9861	P1840A Cipher Shifer implementation strings two pointers *800	0 / 0	3
	9851	P1841C Ranom Numbers brute force dp greedy math strings	0 / 8	10
	9912	P1844D Row Major constructive algorithms greedy math number theory strings *1400	0 / 0	4
	9904	P1845C Strong Password binary search dp greedy strings *1400	0 / 0	4
	9899	P1846B Rudolph and Tic-Tac-Toe brute force implementation strings *800	0 / 0	3
	9889	P1847D Professor Higashikata data structures dsu greedy implementation strings *1900	0 / 0	6
	9960	P1849C Binary String Copying binary search brute force data structures hashing strings	0 / 0	(None)
	9878	P1850C Word on the Paper implementation strings	0 / 0	(None)
	9951	P1851F Lisa and the Martians bitmasks greedy math strings trees	0 / 0	(None)
	9969	P1860A Not a Substring constructive algorithms strings	0 / 0	(None)
	10045	P1861C Queries for the Array data structures dfs and similar implementation strings trees	9 / 31	7
	10041	P1862A Gift Carpet dp greedy implementation strings	0 / 0	(None)
	10024	P1864B Swap and Reverse constructive algorithms greedy sortings strings	0 / 0	(None)
	10021	P1864E Guess Game bitmasks data structures games math probabilities sortings strings trees	0 / 0	(None)
	10069	P1867B XOR Palindromes bitmasks constructive algorithms strings	0 / 0	(None)
	10170	P1881A Don't Try to Count brute force strings	0 / 1	10
	10162	P1883B Chemistry strings	0 / 0	(None)
	10074	P1886C Decreasing String constructive algorithms strings	0 / 0	(None)
	10179	P1894A Secret Sport implementation strings *800	0 / 0	3
	10217	P1896B AB Flipping greedy strings two pointers *900	0 / 0	3
	10209	P1898A Milica and String brute force implementation strings *800	0 / 0	3
	10205	P1898E Sofia and Strings data structures greedy sortings strings two pointers *2200	0 / 0	8
	10196	P1900A Cover in Water constructive algorithms greedy implementation strings *800	0 / 0	3
	10309	P1909G Pumping Lemma hashing strings *3000	0 / 0	10
	10240	P1912L LOL Lovers strings *800	0 / 0	3
	10238	P1913B Swap and Delete strings *1000	0 / 0	3
	10234	P1913F Palindromic Problem binary search data structures hashing string suffix structures strings *2800	0 / 0	10
	10233	P1914A Problemsolving Log implementation strings *800	0 / 0	3
	10290	P1915D Unnatural Language Processing greedy implementation strings *900	0 / 0	3
	10223	P1917B Erase First or Second Letter brute force combinatorics data structures dp strings *1100	0 / 0	3
	10254	P1922A Tricky Template constructive algorithms implementation strings *800	0 / 0	3
	10340	P1924A Did We Get Everything Covered? constructive algorithms dp greedy shortest paths strings *1500	0 / 0	5
	10334	P1925A We Got Everything Covered! constructive algorithms greedy strings *800	0 / 0	3
	10331	P1927A Make it White greedy strings	0 / 0	(None)
	10330	P1927B Following the String constructive algorithms greedy strings	0 / 0	(None)
	10430	P1930D1 Sum over all Substrings (Easy Version) brute force dp greedy strings *1800	0 / 0	6
	10429	P1930D2 Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings *2100	0 / 0	7
	10423	P1931A Recovering a Small String brute force strings *800	0 / 0	3
	10396	P1935A Entertainment in MAC constructive algorithms strings *800	0 / 0	3
	10359	P1941C Rudolf and the Ugly String dp greedy strings *900	0 / 0	3
	10473	P1943B Non-Palindromic Substring hashing implementation math strings *2000	0 / 0	7
	10351	P1948D Tandem Repeats? dp strings two pointers	1 / 3	10
	10517	P1950E Nearly Shortest Repeating Substring brute force implementation number theory strings	0 / 0	(None)
	10515	P1950G Shuffling Songs bitmasks dfs and similar dp graphs hashing implementation strings	0 / 0	(None)
	10510	P1951E No Palindromes brute force constructive algorithms divide and conquer greedy hashing implementation math strings	0 / 0	(None)
	10505	P1952A Are You a Robot, Again? strings	0 / 0	(None)
	10504	P1952B Is it stated? strings	0 / 0	(None)
	10498	P1952H Palindrome implementation strings	0 / 0	(None)
	10628	P1965C Folding Strip constructive algorithms greedy strings *2300	0 / 0	8
	10608	P1968G1 Division + LCP (easy version) binary search data structures dp hashing string suffix structures strings *1900	0 / 0	6
	10607	P1968G2 Division + LCP (hard version) binary search brute force data structures dp hashing math string suffix structures strings *2200	0 / 0	8
	10591	P1970D1 Arithmancy (Easy) brute force constructive algorithms interactive strings *2100	0 / 0	7
	10590	P1970D2 Arithmancy (Medium) constructive algorithms interactive probabilities strings *2600	0 / 0	10
	10578	P1971B Different String implementation strings *800	0 / 0	3
	10576	P1971D Binary Cut dp greedy implementation sortings strings *1100	0 / 0	3
	10562	P1974B Symmetric Encoding implementation sortings strings *800	0 / 0	3
	10550	P1975G Zimpha Fan Club fft greedy math strings *3000	0 / 1	10
	10549	P1975H 378QAQ and Core greedy strings *3500	0 / 0	10
	10689	P1979D Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings *1800	0 / 0	6
	10679	P1980G Yasya and the Mysterious Tree bitmasks data structures dfs and similar graphs greedy strings trees *2300	0 / 0	8
	10668	P1984D "a" String Problem brute force hashing implementation math string suffix structures strings *2000	0 / 0	7

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