Problemset - Codeforces

→ Pay attention

Before contest
Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
20:34:12
Register now »

→ Filter Problems

Difficulty: —

two pointers

Add tag

Problems

#	Name
1431B	Polycarp and the Language of Gods *special problem, implementation, two pointers	1400	x999
430B	Balls Game brute force, two pointers	1400	x3627
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x7492
888C	K-Dominant Character binary search, implementation, two pointers	1400	x8069
416A	Guess a number! greedy, implementation, two pointers	1400	x8638
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1400	x8992
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x9107
1190A	Tokitsukaze and Discard Items implementation, two pointers	1400	x9112
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9473
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10305
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x10416
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x10514
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12312
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x12360
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x12785
1719C	Fighting Tournament binary search, data structures, implementation, two pointers	1400	x12857
1721C	Min-Max Array Transformation binary search, greedy, two pointers	1400	x12958
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13528
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x13922
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x15183
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x15697
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x15858
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16065
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19016
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22165
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x26693
279B	Books binary search, brute force, implementation, two pointers	1400	x47663
60A	Where Are My Flakes? implementation, two pointers	1300	x3523
161A	Dress'em in Vests! binary search, brute force, greedy, two pointers	1300	x4675
1776H	Beppa and SwerChat two pointers	1300	x5996
318B	Strings of Power implementation, strings, two pointers	1300	x7370
1107C	Brutality greedy, sortings, two pointers	1300	x9645
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x10088
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10699
716B	Complete the Word greedy, two pointers	1300	x11802
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x11981
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x12293
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x12427
1873F	Money Trees binary search, greedy, math, two pointers	1300	x13744
1736C1	Good Subarrays (Easy Version) binary search, data structures, schedules, two pointers	1300	x14481
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x14685
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x15777
251A	Points on Line binary search, combinatorics, two pointers	1300	x16565
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18137
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x18407
1366B	Shuffle math, two pointers	1300	x19574
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21211
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x26941
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x27359
769B	News About Credit *special problem, greedy, two pointers	1200	x3233
302B	Eugeny and Play List binary search, implementation, two pointers	1200	x7780
892B	Wrath greedy, implementation, two pointers	1200	x8657
842A	Kirill And The Game brute force, two pointers	1200	x9957
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10586
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11317
387B	George and Round brute force, greedy, two pointers	1200	x11906
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x12981
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14287
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15143
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x15549
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x18065
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x18777
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x19175
1692E	Binary Deque binary search, implementation, two pointers	1200	x19856
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x20017
1006C	Three Parts of the Array binary search, data structures, two pointers	1200	x20188
1133C	Balanced Team sortings, two pointers	1200	x21261
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x26765
1399C	Boats Competition brute force, greedy, two pointers	1200	x27739
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x29099
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x36296
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x46440
1884B	Haunted House binary search, greedy, math, two pointers	1100	x11634
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x12758
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x13348
1610B	Kalindrome Array greedy, two pointers	1100	x14738
1741C	Minimize the Thickness brute force, greedy, math, two pointers	1100	x17178
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x17415
1656B	Subtract Operation data structures, greedy, math, two pointers	1100	x17616
1899C	Yarik and Array dp, greedy, two pointers	1100	x18021
1832B	Maximum Sum brute force, sortings, two pointers	1100	x19561
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x19890
1547C	Pair Programming greedy, two pointers	1100	x21998
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x22985
1251A	Broken Keyboard brute force, strings, two pointers	1000	x18788
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19060
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21203
1760D	Challenging Valleys implementation, two pointers	1000	x22306
1744C	Traffic Light binary search, implementation, two pointers	1000	x24134
978C	Letters binary search, implementation, two pointers	1000	x24325
1840C	Ski Resort combinatorics, math, two pointers	1000	x24504
1690D	Black and White Stripe implementation, two pointers	1000	x26688
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x27047
1896B	AB Flipping greedy, strings, two pointers	900	x13312
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x15761
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16373
1746B	Rebellion constructive algorithms, greedy, two pointers	800	x16730
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20853
1843B	Long Long greedy, math, two pointers	800	x27982
1851B	Parity Sort greedy, sortings, two pointers	800	x28018