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	x59897
279B	Books binary search, brute force, implementation, two pointers	1400	x47470
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x46300
1791C	Prepend and Append implementation, two pointers	800	x40132
1462A	Favorite Sequence implementation, two pointers	800	x39788
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x36232
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x34470
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x32836
1840A	Cipher Shifer implementation, strings, two pointers	800	x32409
1873D	1D Eraser greedy, implementation, two pointers	800	x32354
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x29043
1851B	Parity Sort greedy, sortings, two pointers	800	x27939
1843B	Long Long greedy, math, two pointers	800	x27915
1399C	Boats Competition brute force, greedy, two pointers	1200	x27693
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x27261
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27032
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x26872
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x26723
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x26612
1690D	Black and White Stripe implementation, two pointers	1000	x26608
580B	Kefa and Company binary search, sortings, two pointers	1500	x24810
1840C	Ski Resort combinatorics, math, two pointers	1000	x24397
978C	Letters binary search, implementation, two pointers	1000	x24267
1744C	Traffic Light binary search, implementation, two pointers	1000	x24032
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x22883
1760D	Challenging Valleys implementation, two pointers	1000	x22257
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22131
1547C	Pair Programming greedy, two pointers	1100	x21971
1133C	Balanced Team sortings, two pointers	1200	x21214
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21168
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21150
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20838
1006C	Three Parts of the Array binary search, data structures, two pointers	1200	x20126
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x19989
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x19826
1692E	Binary Deque binary search, implementation, two pointers	1200	x19798
1366B	Shuffle math, two pointers	1300	x19532
1832B	Maximum Sum brute force, sortings, two pointers	1100	x19485
1352E	Special Elements brute force, implementation, two pointers	1500	x19200
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x19106
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19009
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19002
1251A	Broken Keyboard brute force, strings, two pointers	1000	x18770
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x18728
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x18370
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	x18024
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x18011
676C	Vasya and String binary search, dp, strings, two pointers	1500	x17992
1899C	Yarik and Array dp, greedy, two pointers	1100	x17917
1656B	Subtract Operation data structures, greedy, math, two pointers	1100	x17580
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x17375
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	x16537
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16361
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16047
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x15818
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x15743
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x15742
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x15732
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x15657
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x15536
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x15533
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x15170
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15031
1610B	Kalindrome Array greedy, two pointers	1100	x14694
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14651
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x14622
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	x14451
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x14444
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14250
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	x13682
701C	They Are Everywhere binary search, strings, two pointers	1500	x13637
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13386
1553D	Backspace dp, greedy, strings, two pointers	1500	x13285
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x13275
1896B	AB Flipping greedy, strings, two pointers	900	x13262
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13164
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x13126
702C	Cellular Network binary search, implementation, two pointers	1500	x12954
1721C	Min-Max Array Transformation binary search, greedy, two pointers	1400	x12948
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x12945
427C	Checkposts dfs and similar, graphs, two pointers	1700	x12903
1719C	Fighting Tournament binary search, data structures, implementation, two pointers	1400	x12839
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x12749
1381A2	Prefix Flip (Hard Version) constructive algorithms, data structures, implementation, strings, two pointers	1700	x12733
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x12678
86D	Powerful array data structures, implementation, math, two pointers	2200	x12472
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x12391
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1600	x12311
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x12283
446A	DZY Loves Sequences dp, implementation, two pointers	1600	x12225
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12216
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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