Problem Set - strings - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	684	P1776G Another Wine Tasting Event combinatorics constructive algorithms math strings *2100	0 / 0	7
	671	P1777F Comfortably Numb bitmasks data structures divide and conquer strings trees *2400	0 / 0	9
	668	P1778C Flexible String bitmasks brute force strings *1600	0 / 0	5
	664	P1779A Hall of Fame constructive algorithms greedy strings *800	0 / 0	3
	648	P1781C Equal Frequencies brute force constructive algorithms greedy implementation sortings strings *1600	0 / 0	5
	609	P1789B Serval and Inversion Magic brute force implementation strings two pointers *800	0 / 0	3
	605	P1789F Serval and Brain Power bitmasks brute force dp greedy implementation strings *2700	0 / 0	10
	604	P1790A Polycarp and the Day of Pi implementation math strings *800	0 / 0	3
	597	P1791A Codeforces Checking implementation strings *800	0 / 0	3
	594	P1791D Distinct Split brute force greedy strings *1000	0 / 0	3
	576	P1794A Prefix and Suffix Array strings *800	0 / 0	3
	571	P1795A Two Towers brute force implementation strings *800	0 / 0	3
	564	P1796A Typical Interview Problem brute force implementation strings *800	0 / 0	3
	563	P1796B Asterisk-Minor Template implementation strings *1000	0 / 0	3
	544	P1799C Double Lexicographically Minimum greedy strings *1700	0 / 0	5
	537	P1800A Is It a Cat? implementation strings *800	0 / 0	3
	536	P1800B Count the Number of Pairs greedy strings *1000	0 / 0	3
	533	P1800D Remove Two Letters data structures greedy hashing strings *1200	0 / 0	4
	532	P1800E1 Unforgivable Curse (easy version) brute force constructive algorithms dsu graphs greedy strings *1400	0 / 0	4
	531	P1800E2 Unforgivable Curse (hard version) brute force constructive algorithms dfs and similar dsu graphs greedy strings *1500	0 / 0	5
	530	P1800F Dasha and Nightmares bitmasks hashing meet-in-the-middle strings *1900	0 / 0	6
	522	P1801G A task for substrings data structures string suffix structures strings *3400	0 / 0	10
	510	P1805B The String Has a Target greedy strings *800	0 / 0	3
	495	P1807C Find and Replace greedy implementation strings *800	0 / 0	3
	467	P1811A Insert Digit greedy math strings *800	0 / 0	3
	459	P1812A Are You a Robot? special problem special problem *special problem expression parsing strings	0 / 0	(None)
	450	P1812J Unmysterious Language *special problem constructive algorithms strings	0 / 0	(None)
	439	P1815E Bosco and Particle dp math number theory strings *3100	0 / 0	10
	430	P1817F Entangled Substrings string suffix structures strings *3500	0 / 0	10
	421	P1820A Yura's New Name implementation strings *800	0 / 0	3
	420	P1820B JoJo's Incredible Adventures math strings two pointers *1100	0 / 0	3
	417	P1821C Tear It Apart brute force implementation math strings *1300	0 / 0	4
	415	P1821E Rearrange Brackets brute force dp greedy sortings strings *2100	0 / 0	7
	409	P1822E Making Anti-Palindromes greedy math strings *1600	0 / 0	5
	402	P1823D Unique Palindromes constructive algorithms math strings *1900	0 / 0	6
	393	P1825A LuoTianyi and the Palindrome String greedy strings *800	0 / 0	3
	382	P1827C Palindrome Partition binary search brute force data structures dp hashing strings *2600	0 / 0	10
	376	P1829A Love Story implementation strings *800	0 / 0	3
	360	P1832A New Palindrome strings *800	0 / 0	3
	353	P1833A Musical Puzzle implementation strings *800	0 / 0	3
	344	P1834C Game with Reversing games greedy math strings *1200	0 / 0	4
	323	P1838D Bracket Walk data structures greedy strings *2100	0 / 0	7
	315	P1840A Cipher Shifer implementation strings two pointers *800	0 / 0	3
	305	P1841C Ranom Numbers brute force dp greedy math strings *1800	0 / 0	6
	282	P1844D Row Major constructive algorithms greedy math number theory strings *1400	0 / 0	4
	274	P1845C Strong Password binary search dp greedy strings *1400	0 / 0	4
	269	P1846B Rudolph and Tic-Tac-Toe brute force implementation strings *800	0 / 0	3
	259	P1847D Professor Higashikata data structures dsu greedy implementation strings *1900	0 / 0	6
	248	P1849C Binary String Copying binary search brute force data structures hashing strings *1600	0 / 0	5
	242	P1850C Word on the Paper implementation strings *800	0 / 0	3
	231	P1851F Lisa and the Martians bitmasks greedy math strings trees *1800	0 / 0	6
	187	P1860A Not a Substring constructive algorithms strings *900	0 / 0	3
	179	P1861C Queries for the Array data structures dfs and similar implementation strings trees *1600	0 / 0	5
	175	P1862A Gift Carpet dp greedy implementation strings *800	0 / 0	3
	158	P1864B Swap and Reverse constructive algorithms greedy sortings strings *1100	0 / 0	3
	155	P1864E Guess Game bitmasks data structures games math probabilities sortings strings trees *2100	0 / 0	7
	136	P1867B XOR Palindromes bitmasks constructive algorithms strings *1100	0 / 0	3
	66	P1881A Don't Try to Count brute force strings *800	0 / 0	3
	52	P1883B Chemistry strings *900	0 / 0	3
	38	P1886C Decreasing String implementation strings *1600	0 / 0	5
	9	P1894A Secret Sport implementation strings *800	0 / 0	3
	5147	P1896B AB Flipping greedy strings two pointers	0 / 0	(None)
	5133	P1898A Milica and String brute force implementation strings	0 / 0	(None)
	5129	P1898E Sofia and Strings data structures greedy sortings string suffix structures strings two pointers	0 / 0	(None)
	5349	P1900A Cover in Water constructive algorithms greedy implementation strings *800	0 / 0	3
	6621	P1902E Collapsing Strings data structures strings trees *1900	0 / 0	6
	6701	P1905C Largest Subsequence greedy strings *1400	0 / 0	4
	6605	P1907B YetnotherrokenKeoard data structures implementation strings *1000	0 / 0	3
	6604	P1907C Removal of Unattractive Pairs constructive algorithms greedy math strings *1100	0 / 0	3
	6690	P1909G Pumping Lemma hashing strings *3000	0 / 0	10
	6666	P1912L LOL Lovers strings *800	0 / 0	3
	6664	P1913B Swap and Delete strings *1000	0 / 0	3
	6660	P1913F Palindromic Problem binary search data structures hashing string suffix structures strings *2800	0 / 0	10
	6659	P1914A Problemsolving Log implementation strings *800	0 / 0	3
	6647	P1915D Unnatural Language Processing greedy implementation strings *900	0 / 0	3
	6633	P1917B Erase First or Second Letter brute force combinatorics data structures dp strings *1100	0 / 0	3
	8186	P1922A Tricky Template constructive algorithms implementation strings *800	0 / 0	3
	8925	P1923F Shrink-Reverse binary search brute force greedy hashing implementation string suffix structures strings	0 / 0	(None)
	8180	P1924A Did We Get Everything Covered? constructive algorithms dp greedy shortest paths strings *1500	0 / 0	5
	8174	P1925A We Got Everything Covered! constructive algorithms greedy strings *800	0 / 0	3
	8917	P1927A Make it White greedy strings *800	0 / 0	3
	8916	P1927B Following the String constructive algorithms greedy strings *900	0 / 0	3
	8895	P1930D1 Sum over all Substrings (Easy Version) brute force dp greedy strings	0 / 0	(None)
	8894	P1930D2 Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings	0 / 0	(None)
	8888	P1931A Recovering a Small String brute force strings *800	0 / 0	3
	8861	P1935A Entertainment in MAC constructive algorithms strings	0 / 0	(None)
	9375	P1965C Folding Strip constructive algorithms greedy strings *2300	0 / 0	8
	9355	P1968G1 Division + LCP (easy version) binary search data structures dp hashing string suffix structures strings *1900	0 / 0	6
	9354	P1968G2 Division + LCP (hard version) binary search brute force data structures dp hashing math string suffix structures strings *2200	0 / 0	8
	9338	P1970D1 Arithmancy (Easy) brute force constructive algorithms interactive strings *2100	0 / 0	7
	9337	P1970D2 Arithmancy (Medium) constructive algorithms interactive probabilities strings *2600	0 / 0	10
	9325	P1971B Different String implementation strings *800	0 / 0	3
	9323	P1971D Binary Cut dp greedy implementation sortings strings *1100	0 / 0	3
	9309	P1974B Symmetric Encoding implementation sortings strings *800	0 / 0	3
	9297	P1975G Zimpha Fan Club fft greedy math strings	0 / 0	(None)
	9296	P1975H 378QAQ and Core greedy strings	0 / 0	(None)

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