Problemset - Codeforces

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two pointers

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Problems

#	Name
1995B1	Bouquet (Easy Version) binary search, brute force, greedy, sortings, two pointers	1100	x14382
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x13684
1982C	Boring Day binary search, data structures, dp, greedy, two pointers	1200	x15467
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x12967
1972A	Contest Proposal brute force, greedy, two pointers	800	x21740
1968B	Prefiquence greedy, two pointers	800	x26618
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x14442
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x14969
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x16488
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x13345
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x20017
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x20959
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x11916
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x14207
1899C	Yarik and Array dp, greedy, two pointers	1100	x19760
1896B	AB Flipping greedy, strings, two pointers	900	x14208
1884B	Haunted House binary search, greedy, math, two pointers	1100	x12364
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x10194
1873F	Money Trees binary search, greedy, math, two pointers	1300	x14815
1873D	1D Eraser greedy, implementation, two pointers	800	x34167
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x11187
1851B	Parity Sort greedy, sortings, two pointers	800	x28866
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19664
1843B	Long Long greedy, math, two pointers	800	x28637
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x33748
1840C	Ski Resort combinatorics, math, two pointers	1000	x26362
1840A	Cipher Shifer implementation, strings, two pointers	800	x33542
1832B	Maximum Sum brute force, sortings, two pointers	1100	x20921
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x18349
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x14127
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x13225
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x19315
1791C	Prepend and Append implementation, two pointers	800	x43129
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x16022
1776H	Beppa and SwerChat two pointers	1300	x6225
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x13753
1760D	Challenging Valleys implementation, two pointers	1000	x23154
1746B	Rebellion constructive algorithms, greedy, two pointers	800	x17029
1744C	Traffic Light binary search, implementation, two pointers	1000	x25954
1741C	Minimize the Thickness brute force, greedy, math, two pointers	1100	x17556
1736C1	Good Subarrays (Easy Version) binary search, data structures, schedules, two pointers	1300	x14806
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x19949
1721C	Min-Max Array Transformation binary search, greedy, two pointers	1400	x13184
1719C	Fighting Tournament binary search, data structures, implementation, two pointers	1400	x13056
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x16418
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x14169
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x16950
1692E	Binary Deque binary search, implementation, two pointers	1200	x21077
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x22237
1690D	Black and White Stripe implementation, two pointers	1000	x28314
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16511
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x16343
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x24650
1656B	Subtract Operation data structures, greedy, math, two pointers	1100	x18329
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x21043
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x15446
1610B	Kalindrome Array greedy, two pointers	1100	x15417
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9633
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x20476
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x15120
1547C	Pair Programming greedy, two pointers	1100	x22416
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x27844
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16318
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21914
1462A	Favorite Sequence implementation, two pointers	800	x40982
1431B	Polycarp and the Language of Gods *special problem, implementation, two pointers	1400	x1006
1399C	Boats Competition brute force, greedy, two pointers	1200	x28362
1374D	Zero Remainder Array math, sortings, two pointers	1400	x23199
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19427
1366B	Shuffle math, two pointers	1300	x20385
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x19388
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x27656
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27568
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x30163
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x37702
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x27665
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11674
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x12527
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x15831
1251A	Broken Keyboard brute force, strings, two pointers	1000	x19378
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x15487
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x10401
1190A	Tokitsukaze and Discard Items implementation, two pointers	1400	x9308
1133C	Balanced Team sortings, two pointers	1200	x22063
1107C	Brutality greedy, sortings, two pointers	1300	x9879
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x12069
1006C	Three Parts of the Array binary search, data structures, two pointers	1200	x20730
978C	Letters binary search, implementation, two pointers	1000	x25082
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x20204
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1400	x9090
892B	Wrath greedy, implementation, two pointers	1200	x8807
888C	K-Dominant Character binary search, implementation, two pointers	1400	x8157
842A	Kirill And The Game brute force, two pointers	1200	x10074
769B	News About Credit *special problem, greedy, two pointers	1200	x3268
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x7877
716B	Complete the Word greedy, two pointers	1300	x11982
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x10648
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x28674
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x47785
430B	Balls Game brute force, two pointers	1400	x3665

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