Problemset - Codeforces

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Problems

#	Name
1834C	Game with Reversing games, greedy, math, strings	1200	x12682
1295C	Obtain The String dp, greedy, strings	1600	x12566
1421C	Palindromifier constructive algorithms, strings	1400	x12499
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12449
1670B	Dorms War brute force, implementation, strings	1100	x12427
735A	Ostap and Grasshopper implementation, strings	800	x12311
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12302
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12195
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x12178
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12112
1085A	Right-Left Cipher implementation, strings	800	x12067
1029A	Many Equal Substrings implementation, strings	1300	x12029
1187B	Letters Shop binary search, implementation, strings	1300	x11993
78A	Haiku implementation, strings	800	x11988
721B	Passwords implementation, math, sortings, strings	1100	x11983
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x11896
1107A	Digits Sequence Dividing greedy, strings	900	x11889
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11881
776A	A Serial Killer brute force, implementation, strings	900	x11847
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11782
1326D1	Prefix-Suffix Palindrome (Easy version) hashing, string suffix structures, strings	1500	x11670
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11661
1379A	Acacius and String brute force, implementation, strings	1500	x11613
1307C	Cow and Message brute force, dp, math, strings	1500	x11555
1609B	William the Vigilant implementation, strings	1100	x11514
1952A	Are You a Robot, Again? strings		x11431
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11393
1628B	Peculiar Movie Preferences greedy, strings	1700	x11215
1140B	Good String implementation, strings	1200	x11147
778A	String Game binary search, greedy, strings	1700	x11133
1905C	Largest Subsequence greedy, strings	1400	x11098
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11077
1151A	Maxim and Biology brute force, strings	1000	x11005
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10999
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x10997
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1100	x10948
63A	Sinking Ship implementation, sortings, strings	900	x10902
1742F	Smaller constructive algorithms, greedy, strings	1500	x10869
1251B	Binary Palindromes greedy, strings	1400	x10736
877A	Alex and broken contest implementation, strings	1100	x10724
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10646
598B	Queries on a String implementation, strings	1300	x10604
844A	Diversity greedy, implementation, strings	1000	x10431
559B	Equivalent Strings divide and conquer, hashing, sortings, strings	1700	x10397
1952B	Is it stated? strings		x10354
271D	Good Substrings data structures, strings	1800	x10354
1096B	Substring Removal combinatorics, math, strings	1300	x10348
1886C	Decreasing String implementation, strings	1600	x10312
745A	Hongcow Learns the Cyclic Shift implementation, strings	900	x10306
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x10242
1063A	Oh Those Palindromes constructive algorithms, strings	1300	x10228
94A	Restoring Password implementation, strings	900	x10166
989A	A Blend of Springtime implementation, strings	900	x10163
1675E	Replace With the Previous, Minimize dsu, greedy, strings	1500	x10142
625B	War of the Corporations constructive algorithms, greedy, strings	1200	x10107
723B	Text Document Analysis expression parsing, implementation, strings	1100	x10077
801B	Valued Keys constructive algorithms, greedy, strings	900	x10028
110B	Lucky String constructive algorithms, strings	1100	x9967
1737A	Ela Sorting Books greedy, implementation, strings	900	x9962
1220C	Substring Game in the Lesson games, greedy, strings	1300	x9904
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x9888
548A	Mike and Fax brute force, implementation, strings	1100	x9840
1105B	Zuhair and Strings brute force, implementation, strings	1100	x9799
1822E	Making Anti-Palindromes greedy, math, strings	1600	x9753
554B	Ohana Cleans Up brute force, greedy, strings	1200	x9693
712B	Memory and Trident implementation, strings	1100	x9639
1326D2	Prefix-Suffix Palindrome (Hard version) binary search, greedy, hashing, string suffix structures, strings	1800	x9618
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9599
616A	Comparing Two Long Integers implementation, strings	900	x9574
385B	Bear and Strings brute force, greedy, implementation, math, strings	1200	x9548
1680C	Binary String binary search, greedy, strings, two pointers	1600	x9539
1321C	Remove Adjacent brute force, constructive algorithms, greedy, strings	1600	x9515
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9512
549A	Face Detection implementation, strings	900	x9355
1473D	Program data structures, dp, implementation, strings	1700	x9338
822B	Crossword solving brute force, implementation, strings	1000	x9328
665C	Simple Strings dp, greedy, strings	1300	x9244
108A	Palindromic Times implementation, strings	1000	x9198
525B	Pasha and String constructive algorithms, greedy, math, strings	1400	x9197
518A	Vitaly and Strings constructive algorithms, strings	1600	x9118
1554D	Diane constructive algorithms, greedy, strings	1800	x9103
1295B	Infinite Prefixes math, strings	1700	x9077
981A	Antipalindrome brute force, implementation, strings	900	x9067
1301C	Ayoub's function binary search, combinatorics, greedy, math, strings	1700	x9063
975A	Aramic script implementation, strings	900	x8977
1315B	Homecoming binary search, dp, greedy, strings	1300	x8965
259A	Little Elephant and Chess brute force, strings	1000	x8944
708A	Letters Cyclic Shift constructive algorithms, greedy, implementation, strings	1200	x8914
490C	Hacking Cypher brute force, math, number theory, strings	1700	x8913
864B	Polycarp and Letters brute force, implementation, strings	1000	x8895
946C	String Transformation greedy, strings	1300	x8769
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8748
747B	Mammoth's Genome Decoding implementation, strings	900	x8579
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8537
868A	Bark to Unlock brute force, implementation, strings	900	x8530
1023A	Single Wildcard Pattern Matching brute force, implementation, strings	1200	x8524
1146B	Hate "A" implementation, strings	1100	x8335
1051A	Vasya And Password greedy, implementation, strings	1200	x8320
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x8319
1268A	Long Beautiful Integer constructive algorithms, greedy, implementation, strings	1700	x8294