Problemset - Codeforces

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Problems

#	Name
1834C	Game with Reversing games, greedy, math, strings	1200	x12646
1295C	Obtain The String dp, greedy, strings	1600	x12555
1421C	Palindromifier constructive algorithms, strings	1400	x12486
1670B	Dorms War brute force, implementation, strings	1100	x12417
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12331
735A	Ostap and Grasshopper implementation, strings	800	x12301
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12265
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12157
1085A	Right-Left Cipher implementation, strings	800	x12063
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12058
1029A	Many Equal Substrings implementation, strings	1300	x12007
721B	Passwords implementation, math, sortings, strings	1100	x11978
1187B	Letters Shop binary search, implementation, strings	1300	x11973
78A	Haiku implementation, strings	800	x11962
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x11948
1107A	Digits Sequence Dividing greedy, strings	900	x11887
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x11879
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11862
776A	A Serial Killer brute force, implementation, strings	900	x11840
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11754
1326D1	Prefix-Suffix Palindrome (Easy version) hashing, string suffix structures, strings	1500	x11651
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11621
1379A	Acacius and String brute force, implementation, strings	1500	x11603
1307C	Cow and Message brute force, dp, math, strings	1500	x11540
1609B	William the Vigilant implementation, strings	1100	x11506
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11381
1952A	Are You a Robot, Again? strings		x11367
1628B	Peculiar Movie Preferences greedy, strings	1700	x11195
1140B	Good String implementation, strings	1200	x11137
778A	String Game binary search, greedy, strings	1700	x11112
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11043
1905C	Largest Subsequence greedy, strings	1400	x11036
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10991
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x10987
1151A	Maxim and Biology brute force, strings	1000	x10983
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1100	x10923
63A	Sinking Ship implementation, sortings, strings	900	x10878
1742F	Smaller constructive algorithms, greedy, strings	1500	x10827
1251B	Binary Palindromes greedy, strings	1400	x10725
877A	Alex and broken contest implementation, strings	1100	x10698
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10622
598B	Queries on a String implementation, strings	1300	x10585
844A	Diversity greedy, implementation, strings	1000	x10391
559B	Equivalent Strings divide and conquer, hashing, sortings, strings	1700	x10367
1096B	Substring Removal combinatorics, math, strings	1300	x10336
271D	Good Substrings data structures, strings	1800	x10311
745A	Hongcow Learns the Cyclic Shift implementation, strings	900	x10300
1952B	Is it stated? strings		x10298
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x10236
1886C	Decreasing String implementation, strings	1600	x10228
1063A	Oh Those Palindromes constructive algorithms, strings	1300	x10217
989A	A Blend of Springtime implementation, strings	900	x10158
94A	Restoring Password implementation, strings	900	x10151
1675E	Replace With the Previous, Minimize dsu, greedy, strings	1500	x10110
625B	War of the Corporations constructive algorithms, greedy, strings	1200	x10087
723B	Text Document Analysis expression parsing, implementation, strings	1100	x10068
801B	Valued Keys constructive algorithms, greedy, strings	900	x10015
110B	Lucky String constructive algorithms, strings	1100	x9952
1737A	Ela Sorting Books greedy, implementation, strings	900	x9948
1220C	Substring Game in the Lesson games, greedy, strings	1300	x9898
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x9851
548A	Mike and Fax brute force, implementation, strings	1100	x9835
1105B	Zuhair and Strings brute force, implementation, strings	1100	x9794
1822E	Making Anti-Palindromes greedy, math, strings	1600	x9709
554B	Ohana Cleans Up brute force, greedy, strings	1200	x9687
712B	Memory and Trident implementation, strings	1100	x9629
1326D2	Prefix-Suffix Palindrome (Hard version) binary search, greedy, hashing, string suffix structures, strings	1800	x9583
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9578
616A	Comparing Two Long Integers implementation, strings	900	x9544
385B	Bear and Strings brute force, greedy, implementation, math, strings	1200	x9539
1680C	Binary String binary search, greedy, strings, two pointers	1600	x9510
1321C	Remove Adjacent brute force, constructive algorithms, greedy, strings	1600	x9507
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9463
549A	Face Detection implementation, strings	900	x9348
822B	Crossword solving brute force, implementation, strings	1000	x9322
1473D	Program data structures, dp, implementation, strings	1700	x9316
665C	Simple Strings dp, greedy, strings	1300	x9201
525B	Pasha and String constructive algorithms, greedy, math, strings	1400	x9187
108A	Palindromic Times implementation, strings	1000	x9179
518A	Vitaly and Strings constructive algorithms, strings	1600	x9113
1554D	Diane constructive algorithms, greedy, strings	1800	x9083
1295B	Infinite Prefixes math, strings	1700	x9072
1301C	Ayoub's function binary search, combinatorics, greedy, math, strings	1700	x9058
981A	Antipalindrome brute force, implementation, strings	900	x9048
975A	Aramic script implementation, strings	900	x8969
1315B	Homecoming binary search, dp, greedy, strings	1300	x8961
259A	Little Elephant and Chess brute force, strings	1000	x8932
490C	Hacking Cypher brute force, math, number theory, strings	1700	x8908
864B	Polycarp and Letters brute force, implementation, strings	1000	x8879
708A	Letters Cyclic Shift constructive algorithms, greedy, implementation, strings	1200	x8862
946C	String Transformation greedy, strings	1300	x8765
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8713
747B	Mammoth's Genome Decoding implementation, strings	900	x8563
868A	Bark to Unlock brute force, implementation, strings	900	x8522
1023A	Single Wildcard Pattern Matching brute force, implementation, strings	1200	x8519
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8512
1146B	Hate "A" implementation, strings	1100	x8331
1051A	Vasya And Password greedy, implementation, strings	1200	x8315
1268A	Long Beautiful Integer constructive algorithms, greedy, implementation, strings	1700	x8290
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x8283