Problemset - Codeforces

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CodeCraft-22 and Codeforces Round #795 (Div. 2)
3 days

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Difficulty: —

two pointers

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Problems

#	Name
381A	Sereja and Dima greedy, implementation, two pointers	800	x34852
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x33616
1462A	Favorite Sequence implementation, two pointers	800	x30281
279B	Books binary search, brute force, implementation, two pointers	1400	x29451
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x28232
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x26773
1359B	New Theatre Square brute force, dp, greedy, implementation, two pointers	1000	x23076
1399C	Boats Competition brute force, greedy, two pointers	1200	x22548
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x22181
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x20848
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x19238
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x19184
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x18335
1547C	Pair Programming greedy, two pointers	1100	x18048
978C	Letters binary search, implementation, two pointers	1000	x17945
580B	Kefa and Company binary search, sortings, two pointers	1500	x17912
1374D	Zero Remainder Array math, sortings, two pointers	1400	x17733
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x16963
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x16940
1366B	Shuffle math, two pointers	1300	x16685
1369C	RationalLee greedy, math, sortings, two pointers	1400	x16094
1364B	Most socially-distanced subsequence greedy, two pointers	1300	x16069
1006C	Three Parts of the Array binary search, data structures, two pointers	1200	x15535
1251A	Broken Keyboard brute force, strings, two pointers	1000	x15338
1389C	Good String brute force, dp, greedy, two pointers	1500	x14937
1133C	Balanced Team sortings, two pointers	1200	x14917
1352E	Special Elements brute force, implementation, two pointers	1500	x14317
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x13864
676C	Vasya and String binary search, dp, strings, two pointers	1500	x13731
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x13429
1656B	Subtract Operation data structures, greedy, math, two pointers	1100	x13330
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x13148
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x13027
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x12967
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x12649
251A	Points on Line binary search, combinatorics, two pointers	1300	x12544
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x12479
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x11918
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x11782
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x11750
1610B	Kalindrome Array greedy, two pointers	1100	x11661
1381A2	Prefix Flip (Hard Version) constructive algorithms, data structures, implementation, strings, two pointers	1700	x11041
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x10943
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x10907
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x10733
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x10731
1343D	Constant Palindrome Sum brute force, data structures, greedy, two pointers	1700	x10677
446A	DZY Loves Sequences dp, implementation, two pointers	1600	x10656
1333C	Eugene and an array binary search, data structures, implementation, two pointers	1700	x10534
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x10485
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x10474
387B	George and Round brute force, greedy, two pointers	1200	x10405
1553D	Backspace dp, greedy, strings, two pointers	1500	x10223
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x10116
716B	Complete the Word greedy, two pointers	1300	x10002
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x9976
1416A	k-Amazing Numbers binary search, data structures, implementation, two pointers	1500	x9892
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x9766
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x9608
701C	They Are Everywhere binary search, strings, two pointers	1500	x9568
427C	Checkposts dfs and similar, graphs, two pointers	1700	x9565
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1600	x9445
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x9417
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x9366
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x9335
1251C	Minimize The Integer greedy, two pointers	1600	x9326
1515D	Phoenix and Socks greedy, sortings, two pointers	1500	x9323
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x9133
86D	Powerful array data structures, implementation, math, two pointers	2200	x9132
1335E1	Three Blocks Palindrome (easy version) binary search, brute force, data structures, dp, two pointers	1700	x9089
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x8990
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x8859
1355C	Count Triangles binary search, implementation, math, two pointers	1800	x8837
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x8821
1107C	Brutality greedy, sortings, two pointers	1300	x8696
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x8613
1208B	Uniqueness binary search, brute force, implementation, two pointers	1500	x8596
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x8486
842A	Kirill And The Game brute force, two pointers	1200	x8477
1190A	Tokitsukaze and Discard Items implementation, two pointers	1400	x8476
577B	Modulo Sum combinatorics, data structures, dp, two pointers	1900	x8456
1626C	Monsters And Spells binary search, data structures, dp, greedy, implementation, math, two pointers	1700	x8431
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x8153
788A	Functions again dp, two pointers	1600	x8072
1041C	Coffee Break binary search, data structures, greedy, two pointers	1600	x7924
1400D	Zigzags brute force, combinatorics, data structures, math, two pointers	1900	x7855
1196D2	RGB Substring (hard version) data structures, dp, implementation, two pointers	1600	x7853
1198A	MP3 sortings, two pointers	1600	x7841
1166C	A Tale of Two Lands binary search, sortings, two pointers	1500	x7702
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1400	x7697
1408C	Discrete Acceleration binary search, dp, implementation, math, two pointers	1500	x7653
1475D	Cleaning the Phone binary search, dp, sortings, two pointers	1800	x7607
1430D	String Deletion binary search, data structures, greedy, two pointers	1700	x7556
1036D	Vasya and Arrays greedy, two pointers	1600	x7494
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x7454
892B	Wrath greedy, implementation, two pointers	1200	x7434
702C	Cellular Network binary search, implementation, two pointers	1500	x7383
416A	Guess a number! greedy, implementation, two pointers	1400	x7319
1359D	Yet Another Yet Another Task data structures, dp, implementation, two pointers	2000	x7224
660C	Hard Process binary search, dp, two pointers	1600	x7080

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