Problemset - Codeforces

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two pointers

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Problems

#	Name
1304D	Shortest and Longest LIS constructive algorithms, graphs, greedy, two pointers	1800	x2937
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x6283
1290B	Irreducible Anagrams binary search, constructive algorithms, data structures, strings, two pointers	1900	x2578
1285E	Delete a Segment brute force, constructive algorithms, data structures, dp, graphs, sortings, trees, two pointers	2300	x903
1282C	Petya and Exam greedy, sortings, two pointers	1800	x2538
1266D	Decreasing Debts constructive algorithms, data structures, graphs, greedy, implementation, math, two pointers	2000	x2179
1272F	Two Bracket Sequences dp, strings, two pointers	2400	x766
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x6532
1254B2	Send Boxes to Alice (Hard Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	2100	x1600
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	2000	x2344
1257D	Yet Another Monster Killing Problem binary search, data structures, dp, greedy, sortings, two pointers	1700	x4168
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x8425
1250G	Discarding Game dp, greedy, two pointers	2400	x496
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x5993
1251C	Minimize The Integer greedy, two pointers	1500	x5617
1251A	Broken Keyboard brute force, strings, two pointers	1000	x9497
1252E	Songwriter greedy, two pointers	2300	x738
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x6982
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x2619
1223D	Sequence Sorting dp, greedy, two pointers	2000	x2371
1209G1	Into Blocks (easy version) data structures, dsu, greedy, implementation, two pointers	2000	x1678
1208B	Uniqueness binary search, brute force, implementation, two pointers	1500	x5643
1203D2	Remove the Substring (hard version) binary search, greedy, implementation, two pointers	1800	x3815
1200D	White Lines brute force, data structures, dp, implementation, two pointers	1900	x2722
1198A	MP3 sortings, two pointers	1700	x5618
1196D2	RGB Substring (hard version) data structures, dp, implementation, two pointers	1600	x4949
1195E	OpenStreetMap data structures, two pointers	2100	x1782
1194F	Crossword Expert combinatorics, dp, number theory, probabilities, two pointers	2500	x452
1190D	Tokitsukaze and Strange Rectangle data structures, divide and conquer, sortings, two pointers	2200	x1475
1190A	Tokitsukaze and Discard Items implementation, two pointers	1500	x6533
1188B	Count Pairs math, matrices, number theory, two pointers	2200	x2450
1181D	Irrigation binary search, data structures, implementation, sortings, trees, two pointers	2100	x1160
1175G	Yet Another Partiton Problem data structures, divide and conquer, dp, geometry, two pointers	2700	x75
1148E	Earth Wind and Fire constructive algorithms, greedy, math, sortings, two pointers	2300	x1120
1148B	Born This Way binary search, brute force, two pointers	1700	x4476
1168B	Good Triple brute force, two pointers	2000	x2052
1166C	A Tale of Two Lands binary search, sortings, two pointers	1600	x5273
1167E	Range Deleting binary search, combinatorics, data structures, two pointers	2100	x1352
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x3984
1156E	Special Segments of Permutation data structures, divide and conquer, dsu, two pointers	2400	x1237
1156C	Match Points binary search, greedy, sortings, ternary search, two pointers	2000	x3108
1157F	Maximum Balanced Circle constructive algorithms, dp, greedy, two pointers	2300	x1117
1133E	K Balanced Teams dp, sortings, two pointers	2000	x2180
1133C	Balanced Team sortings, two pointers	1300	x7561
1120A	Diana and Liana greedy, implementation, two pointers	2200	x1065
1131G	Most Dangerous Shark data structures, dp, two pointers	2900	x223
1107C	Brutality greedy, sortings, two pointers	1300	x6138
1044A	The Tower is Going Home binary search, two pointers	1700	x2051
1043D	Mysterious Crime brute force, combinatorics, math, meet-in-the-middle, two pointers	1700	x3055
1073C	Vasya and Robot binary search, two pointers	1800	x2842
1066B	Heaters greedy, two pointers	1500	x4614
1060C	Maximum Subrectangle binary search, implementation, two pointers	1600	x3235
1034D	Intervals of Intervals binary search, data structures, two pointers	3500	x105
1042D	Petya and Array data structures, divide and conquer, two pointers	1800	x2730
1041D	Glider binary search, data structures, two pointers	1700	x3820
1041C	Coffee Break binary search, data structures, greedy, two pointers	1500	x5449
1036D	Vasya and Arrays greedy, two pointers	1600	x4955
1006C	Three Parts of the Array binary search, data structures, two pointers	1300	x8474
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x7332
989D	A Shade of Moonlight binary search, geometry, math, sortings, two pointers	2500	x365
985E	Pencils and Boxes binary search, data structures, dp, greedy, two pointers	2000	x1722
978C	Letters binary search, implementation, two pointers	1000	x8960
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x1862
958F2	Lightsabers (medium) binary search, two pointers	1900	x777
961B	Lecture Sleep data structures, dp, implementation, two pointers	1300	x6797
924B	Three-level Laser binary search, greedy, two pointers	1600	x3993
954G	Castle Defense binary search, data structures, greedy, two pointers	2100	x972
939E	Maximize! binary search, greedy, ternary search, two pointers	1900	x1881
939C	Convenient For Everybody binary search, two pointers	1600	x3468
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1500	x4962
912E	Prime Gift binary search, dfs and similar, math, meet-in-the-middle, number theory, two pointers	2600	x781
901C	Bipartite Segments binary search, data structures, dfs and similar, dsu, graphs, two pointers	2500	x730
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2100	x1288
895B	XK Segments binary search, math, sortings, two pointers	1700	x2455
892B	Wrath greedy, implementation, two pointers	1200	x5621
888C	K-Dominant Character binary search, implementation, two pointers	1400	x3950
887D	Ratings and Reality Shows data structures, two pointers	2500	x370
875B	Sorting the Coins dsu, implementation, sortings, two pointers	1500	x4014
873C	Strange Game On Matrix greedy, two pointers	1600	x2114
853B	Jury Meeting greedy, sortings, two pointers	1900	x2036
846F	Random Query data structures, math, probabilities, two pointers	2000	x1061
848B	Rooter's Song constructive algorithms, data structures, geometry, implementation, sortings, two pointers	2100	x1302
842A	Kirill And The Game brute force, two pointers	1300	x6559
833B	The Bakery binary search, data structures, divide and conquer, dp, two pointers	2200	x1747
830C	Bamboo Partition brute force, data structures, implementation, math, number theory, sortings, two pointers	2500	x751
818E	Card Game Again binary search, data structures, number theory, two pointers	2000	x1083
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x3763
799E	Aquarium decoration data structures, greedy, two pointers	2500	x576
774B	Significant Cups *special problem, binary search, data structures, two pointers	2300	x154
788A	Functions again dp, two pointers	1500	x5942
771F	Bear and Isomorphic Points geometry, two pointers	3200	x47
780H	Intranet of Buses binary search, geometry, implementation, two pointers	3000	x70
769B	News About Credit *special problem, greedy, two pointers	1600	x2679
777C	Alyona and Spreadsheet binary search, data structures, dp, greedy, implementation, two pointers	1600	x4356
767D	Cartons of milk binary search, data structures, greedy, sortings, two pointers	2000	x1524
762C	Two strings binary search, hashing, strings, two pointers	2100	x1514
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x4164
748E	Santa Claus and Tangerines binary search, data structures, greedy, two pointers	2000	x1164
749C	Voting greedy, implementation, two pointers	1600	x4608
746F	Music in Car data structures, greedy, two pointers	2500	x444

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