Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
26:09:00
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Before contest
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	x59940
279B	Books binary search, brute force, implementation, two pointers	1400	x47497
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x46325
1791C	Prepend and Append implementation, two pointers	800	x40178
1462A	Favorite Sequence implementation, two pointers	800	x39806
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x36236
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x34477
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x32855
1840A	Cipher Shifer implementation, strings, two pointers	800	x32425
1873D	1D Eraser greedy, implementation, two pointers	800	x32373
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x29060
1851B	Parity Sort greedy, sortings, two pointers	800	x27952
1843B	Long Long greedy, math, two pointers	800	x27926
1399C	Boats Competition brute force, greedy, two pointers	1200	x27700
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x27286
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27034
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x26883
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x26733
1690D	Black and White Stripe implementation, two pointers	1000	x26624
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x26617
580B	Kefa and Company binary search, sortings, two pointers	1500	x24829
1840C	Ski Resort combinatorics, math, two pointers	1000	x24409
978C	Letters binary search, implementation, two pointers	1000	x24283
1744C	Traffic Light binary search, implementation, two pointers	1000	x24050
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x22891
1760D	Challenging Valleys implementation, two pointers	1000	x22265
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22132
1547C	Pair Programming greedy, two pointers	1100	x21974
1133C	Balanced Team sortings, two pointers	1200	x21226
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21176
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21156
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20843
1006C	Three Parts of the Array binary search, data structures, two pointers	1200	x20144
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x19995
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x19838
1692E	Binary Deque binary search, implementation, two pointers	1200	x19809
1366B	Shuffle math, two pointers	1300	x19541
1832B	Maximum Sum brute force, sortings, two pointers	1100	x19493
1352E	Special Elements brute force, implementation, two pointers	1500	x19209
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x19110
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19019
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19005
1251A	Broken Keyboard brute force, strings, two pointers	1000	x18772
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x18738
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x18376
1389C	Good String brute force, dp, greedy, two pointers	1500	x18319
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18048
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x18019
676C	Vasya and String binary search, dp, strings, two pointers	1500	x17997
1899C	Yarik and Array dp, greedy, two pointers	1100	x17949
1656B	Subtract Operation data structures, greedy, math, two pointers	1100	x17586
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x17383
1741C	Minimize the Thickness brute force, greedy, math, two pointers	1100	x17156
1746B	Rebellion constructive algorithms, greedy, two pointers	800	x16701
251A	Points on Line binary search, combinatorics, two pointers	1300	x16544
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16361
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16052
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x15829
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x15746
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x15745
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x15741
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x15664
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x15539
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x15536
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x15172
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15059
1610B	Kalindrome Array greedy, two pointers	1100	x14698
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14664
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x14631
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x14537
1736C1	Good Subarrays (Easy Version) binary search, data structures, schedules, two pointers	1300	x14458
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x14448
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14257
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	x13783
1873F	Money Trees binary search, greedy, math, two pointers	1300	x13687
701C	They Are Everywhere binary search, strings, two pointers	1500	x13646
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13407
1553D	Backspace dp, greedy, strings, two pointers	1500	x13289
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x13284
1896B	AB Flipping greedy, strings, two pointers	900	x13270
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13168
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x13135
702C	Cellular Network binary search, implementation, two pointers	1500	x12967
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x12956
1721C	Min-Max Array Transformation binary search, greedy, two pointers	1400	x12948
427C	Checkposts dfs and similar, graphs, two pointers	1700	x12906
1719C	Fighting Tournament binary search, data structures, implementation, two pointers	1400	x12843
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x12757
1381A2	Prefix Flip (Hard Version) constructive algorithms, data structures, implementation, strings, two pointers	1700	x12734
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x12694
86D	Powerful array data structures, implementation, math, two pointers	2200	x12475
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x12399
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1600	x12312
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x12284
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12228
446A	DZY Loves Sequences dp, implementation, two pointers	1600	x12227
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12217
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	x12097

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