Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
15:29:56
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Before contest
Codeforces Round 941 (Div. 2)
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two pointers

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Problems

#	Name
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x11974
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x11936
387B	George and Round brute force, greedy, two pointers	1200	x11902
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x11853
716B	Complete the Word greedy, two pointers	1300	x11788
1416A	k-Amazing Numbers binary search, data structures, implementation, two pointers	1500	x11683
1251C	Minimize The Integer greedy, two pointers	1600	x11635
1884B	Haunted House binary search, greedy, math, two pointers	1100	x11610
577B	Modulo Sum combinatorics, data structures, dp, two pointers	1900	x11432
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x11379
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11292
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x11258
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x11170
1515D	Phoenix and Socks greedy, sortings, two pointers	1500	x11141
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x10966
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x10897
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10680
1626C	Monsters And Spells binary search, data structures, dp, greedy, implementation, math, two pointers	1700	x10593
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10584
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x10478
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x10470
1335E1	Three Blocks Palindrome (easy version) binary search, brute force, data structures, dp, two pointers	1700	x10409
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x10393
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10297
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x10226
1355C	Count Triangles binary search, implementation, math, two pointers	1800	x10178
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x10068
1208B	Uniqueness binary search, brute force, implementation, two pointers	1500	x10059
842A	Kirill And The Game brute force, two pointers	1200	x9955
1400D	Zigzags brute force, combinatorics, data structures, math, two pointers	1900	x9777
1475D	Cleaning the Phone binary search, dp, sortings, two pointers	1800	x9695
1107C	Brutality greedy, sortings, two pointers	1300	x9641
1680C	Binary String binary search, greedy, strings, two pointers	1600	x9472
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9470
1196D2	RGB Substring (hard version) data structures, dp, implementation, two pointers	1600	x9304
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x9257
1041C	Coffee Break binary search, data structures, greedy, two pointers	1600	x9234
1462E2	Close Tuples (hard version) binary search, combinatorics, implementation, math, sortings, two pointers	1700	x9197
1190A	Tokitsukaze and Discard Items implementation, two pointers	1400	x9111
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x9065
1166C	A Tale of Two Lands binary search, sortings, two pointers	1500	x9026
660C	Hard Process binary search, dp, two pointers	1600	x9026
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1400	x8982
1036D	Vasya and Arrays greedy, two pointers	1600	x8960
788A	Functions again dp, two pointers	1600	x8952
1359D	Yet Another Yet Another Task data structures, dp, implementation, two pointers	2000	x8928
1198A	MP3 sortings, two pointers	1600	x8746
616D	Longest k-Good Segment binary search, data structures, two pointers	1600	x8719
1430D	String Deletion binary search, data structures, greedy, two pointers	1700	x8658
892B	Wrath greedy, implementation, two pointers	1200	x8655
416A	Guess a number! greedy, implementation, two pointers	1400	x8634
1408C	Discrete Acceleration binary search, dp, implementation, math, two pointers	1500	x8617
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8281
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x8160
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8095
1066B	Heaters greedy, two pointers	1500	x8056
888C	K-Dominant Character binary search, implementation, two pointers	1400	x8052
279C	Ladder dp, implementation, two pointers	1700	x8040
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8023
1497E1	Square-Free Division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x8021
1358D	The Best Vacation binary search, brute force, greedy, implementation, two pointers	1900	x7999
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x7991
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x7987
1335E2	Three Blocks Palindrome (hard version) brute force, data structures, dp, two pointers	1800	x7938
302B	Eugeny and Play List binary search, implementation, two pointers	1200	x7771
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x7707
1472E	Correct Placement binary search, data structures, dp, sortings, two pointers	1700	x7704
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7687
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x7672
1409E	Two Platforms binary search, dp, sortings, two pointers	1800	x7538
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x7478
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7390
318B	Strings of Power implementation, strings, two pointers	1300	x7365
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7284
1257D	Yet Another Monster Killing Problem binary search, data structures, dp, greedy, sortings, two pointers	1700	x7198
1148B	Born This Way binary search, brute force, two pointers	1600	x7146
224B	Array bitmasks, implementation, two pointers	1500	x7145
1203D2	Remove the Substring (hard version) binary search, greedy, implementation, two pointers	1700	x7013
1611E1	Escape The Maze (easy version) dfs and similar, greedy, shortest paths, trees, two pointers	1700	x6914
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x6844
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x6823
484B	Maximum Value binary search, math, sortings, two pointers	2100	x6768
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x6739
1731D	Valiant's New Map binary search, brute force, data structures, dp, two pointers	1700	x6680
493C	Vasya and Basketball binary search, brute force, data structures, implementation, sortings, two pointers	1600	x6666
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6621
1394A	Boboniu Chats with Du dp, greedy, sortings, two pointers	1800	x6445
1608C	Game Master data structures, dfs and similar, dp, graphs, greedy, two pointers	1700	x6408
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x6292
777C	Alyona and Spreadsheet binary search, data structures, dp, greedy, implementation, two pointers	1600	x6275
519D	A and B and Interesting Substrings data structures, dp, two pointers	1800	x6266
1611F	ATM and Students binary search, data structures, two pointers	1800	x6162
1304D	Shortest and Longest LIS constructive algorithms, graphs, greedy, two pointers	1800	x6065
505C	Mr. Kitayuta, the Treasure Hunter dfs and similar, dp, two pointers	1900	x6063
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6000
1776H	Beppa and SwerChat two pointers	1300	x5989
1508A	Binary Literature constructive algorithms, greedy, implementation, strings, two pointers	1900	x5981
1672D	Cyclic Rotation constructive algorithms, greedy, implementation, two pointers	1700	x5972
749C	Voting greedy, implementation, two pointers	1500	x5907
1156C	Match Points binary search, greedy, sortings, ternary search, two pointers	2000	x5882