Problemset - Codeforces

→ Pay attention

Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
4 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

two pointers

Add tag

Problems

#	Name
381A	Sereja and Dima greedy, implementation, two pointers	800	x60757
1791C	Prepend and Append implementation, two pointers	800	x40895
1462A	Favorite Sequence implementation, two pointers	800	x40114
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x33081
1873D	1D Eraser greedy, implementation, two pointers	800	x32845
1840A	Cipher Shifer implementation, strings, two pointers	800	x32713
1851B	Parity Sort greedy, sortings, two pointers	800	x28181
1843B	Long Long greedy, math, two pointers	800	x28120
1968B	Prefiquence greedy, two pointers	800	x23597
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20883
1972A	Contest Proposal brute force, greedy, two pointers	800	x18402
1746B	Rebellion constructive algorithms, greedy, two pointers	800	x16777
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16395
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x15819
1896B	AB Flipping greedy, strings, two pointers	900	x13480
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27105
1690D	Black and White Stripe implementation, two pointers	1000	x27009
1840C	Ski Resort combinatorics, math, two pointers	1000	x24801
978C	Letters binary search, implementation, two pointers	1000	x24473
1744C	Traffic Light binary search, implementation, two pointers	1000	x24418
1760D	Challenging Valleys implementation, two pointers	1000	x22482
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21389
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19159
1251A	Broken Keyboard brute force, strings, two pointers	1000	x18839
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x23322
1547C	Pair Programming greedy, two pointers	1100	x22052
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x20094
1832B	Maximum Sum brute force, sortings, two pointers	1100	x19782
1899C	Yarik and Array dp, greedy, two pointers	1100	x18304
1656B	Subtract Operation data structures, greedy, math, two pointers	1100	x17742
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x17556
1741C	Minimize the Thickness brute force, greedy, math, two pointers	1100	x17246
1610B	Kalindrome Array greedy, two pointers	1100	x14860
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x13469
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x12989
1884B	Haunted House binary search, greedy, math, two pointers	1100	x11737
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x46753
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x36471
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x29354
1399C	Boats Competition brute force, greedy, two pointers	1200	x27832
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x26849
1133C	Balanced Team sortings, two pointers	1200	x21403
1006C	Three Parts of the Array binary search, data structures, two pointers	1200	x20341
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x20112
1692E	Binary Deque binary search, implementation, two pointers	1200	x20091
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x19325
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x18958
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x18259
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x15612
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15433
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14505
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x13060
387B	George and Round brute force, greedy, two pointers	1200	x11927
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11393
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10615
842A	Kirill And The Game brute force, two pointers	1200	x9971
892B	Wrath greedy, implementation, two pointers	1200	x8679
302B	Eugeny and Play List binary search, implementation, two pointers	1200	x7797
769B	News About Credit *special problem, greedy, two pointers	1200	x3238
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x27576
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x27124
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21328
1366B	Shuffle math, two pointers	1300	x19667
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x18503
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18478
251A	Points on Line binary search, combinatorics, two pointers	1300	x16799
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x15901
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x14785
1736C1	Good Subarrays (Easy Version) binary search, data structures, schedules, two pointers	1300	x14556
1873F	Money Trees binary search, greedy, math, two pointers	1300	x13953
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x12548
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x12306
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x11996
716B	Complete the Word greedy, two pointers	1300	x11837
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10776
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x10143
1107C	Brutality greedy, sortings, two pointers	1300	x9660
318B	Strings of Power implementation, strings, two pointers	1300	x7381
1776H	Beppa and SwerChat two pointers	1300	x6042
161A	Dress'em in Vests! binary search, brute force, greedy, two pointers	1300	x4688
60A	Where Are My Flakes? implementation, two pointers	1300	x3533
279B	Books binary search, brute force, implementation, two pointers	1400	x48138
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x26854
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22288
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19084
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16121
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x16072
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x15833
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x15231
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x13980
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13847
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x13043
1721C	Min-Max Array Transformation binary search, greedy, two pointers	1400	x13003
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x12935
1719C	Fighting Tournament binary search, data structures, implementation, two pointers	1400	x12894
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12529
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x10774
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x10457
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10336
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9514

←