Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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two pointers

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Problems

#	Name
381A	Sereja and Dima greedy, implementation, two pointers	800	x59879
279B	Books binary search, brute force, implementation, two pointers	1400	x47449
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x46290
1791C	Prepend and Append implementation, two pointers	800	x40114
1462A	Favorite Sequence implementation, two pointers	800	x39785
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x36227
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x34467
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x32830
1840A	Cipher Shifer implementation, strings, two pointers	800	x32408
1873D	1D Eraser greedy, implementation, two pointers	800	x32347
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x29041
1851B	Parity Sort greedy, sortings, two pointers	800	x27935
1843B	Long Long greedy, math, two pointers	800	x27910
1399C	Boats Competition brute force, greedy, two pointers	1200	x27689
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x27258
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27031
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x26867
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x26722
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x26602
1690D	Black and White Stripe implementation, two pointers	1000	x26594
580B	Kefa and Company binary search, sortings, two pointers	1500	x24804
1840C	Ski Resort combinatorics, math, two pointers	1000	x24390
978C	Letters binary search, implementation, two pointers	1000	x24258
1744C	Traffic Light binary search, implementation, two pointers	1000	x24026
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x22877
1760D	Challenging Valleys implementation, two pointers	1000	x22254
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22129
1547C	Pair Programming greedy, two pointers	1100	x21970
1133C	Balanced Team sortings, two pointers	1200	x21204
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21166
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21149
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20837
1006C	Three Parts of the Array binary search, data structures, two pointers	1200	x20122
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x19985
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x19820
1692E	Binary Deque binary search, implementation, two pointers	1200	x19793
1366B	Shuffle math, two pointers	1300	x19528
1832B	Maximum Sum brute force, sortings, two pointers	1100	x19482
1352E	Special Elements brute force, implementation, two pointers	1500	x19196
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x19103
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19007
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19001
1251A	Broken Keyboard brute force, strings, two pointers	1000	x18768
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x18721
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x18367
1389C	Good String brute force, dp, greedy, two pointers	1500	x18309
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18017
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x18004
676C	Vasya and String binary search, dp, strings, two pointers	1500	x17992
1899C	Yarik and Array dp, greedy, two pointers	1100	x17912
1656B	Subtract Operation data structures, greedy, math, two pointers	1100	x17579
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x17372
1741C	Minimize the Thickness brute force, greedy, math, two pointers	1100	x17153
1746B	Rebellion constructive algorithms, greedy, two pointers	800	x16699
251A	Points on Line binary search, combinatorics, two pointers	1300	x16536
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16361
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16044
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x15815
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x15743
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x15740
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x15729
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x15650
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x15534
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x15531
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x15170
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15026
1610B	Kalindrome Array greedy, two pointers	1100	x14693
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14649
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x14620
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x14533
1736C1	Good Subarrays (Easy Version) binary search, data structures, schedules, two pointers	1300	x14448
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x14441
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14248
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x13913
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x13778
1873F	Money Trees binary search, greedy, math, two pointers	1300	x13678
701C	They Are Everywhere binary search, strings, two pointers	1500	x13632
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13379
1553D	Backspace dp, greedy, strings, two pointers	1500	x13283
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x13271
1896B	AB Flipping greedy, strings, two pointers	900	x13259
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13161
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x13125
702C	Cellular Network binary search, implementation, two pointers	1500	x12953
1721C	Min-Max Array Transformation binary search, greedy, two pointers	1400	x12946
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x12943
427C	Checkposts dfs and similar, graphs, two pointers	1700	x12899
1719C	Fighting Tournament binary search, data structures, implementation, two pointers	1400	x12833
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x12748
1381A2	Prefix Flip (Hard Version) constructive algorithms, data structures, implementation, strings, two pointers	1700	x12731
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x12674
86D	Powerful array data structures, implementation, math, two pointers	2200	x12471
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x12390
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1600	x12310
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x12282
446A	DZY Loves Sequences dp, implementation, two pointers	1600	x12225
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12210
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12209
1343D	Constant Palindrome Sum brute force, data structures, greedy, two pointers	1700	x12182
1333C	Eugene and an array binary search, data structures, implementation, two pointers	1700	x12095

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