Problemset - Codeforces

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Codeforces Round #630 (Div. 2)
11:22:37
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two pointers

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Problems

#	Name
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1300	x19076
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x16235
381A	Sereja and Dima greedy, implementation, two pointers	800	x15302
279B	Books binary search, brute force, implementation, two pointers	1400	x14610
580B	Kefa and Company binary search, sortings, two pointers	1500	x10552
1251A	Broken Keyboard brute force, strings, two pointers	1000	x9826
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x9801
978C	Letters binary search, implementation, two pointers	1000	x9470
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x8886
1006C	Three Parts of the Array binary search, data structures, two pointers	1300	x8780
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x8741
676C	Vasya and String binary search, dp, strings, two pointers	1500	x8184
1133C	Balanced Team sortings, two pointers	1300	x7803
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x7543
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x7505
446A	DZY Loves Sequences dp, implementation, two pointers	1700	x7496
716B	Complete the Word greedy, two pointers	1400	x7484
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x7244
387B	George and Round brute force, greedy, two pointers	1200	x7078
961B	Lecture Sleep data structures, dp, implementation, two pointers	1300	x6980
251A	Points on Line binary search, combinatorics, two pointers	1400	x6979
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1300	x6953
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x6764
701C	They Are Everywhere binary search, strings, two pointers	1500	x6668
842A	Kirill And The Game brute force, two pointers	1300	x6648
1190A	Tokitsukaze and Discard Items implementation, two pointers	1500	x6617
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1400	x6593
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x6479
1107C	Brutality greedy, sortings, two pointers	1300	x6237
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1700	x6150
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x6136
788A	Functions again dp, two pointers	1500	x6072
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x6053
1208B	Uniqueness binary search, brute force, implementation, two pointers	1500	x5838
427C	Checkposts dfs and similar, graphs, two pointers	1700	x5827
1251C	Minimize The Integer greedy, two pointers	1500	x5800
892B	Wrath greedy, implementation, two pointers	1200	x5722
1198A	MP3 sortings, two pointers	1700	x5695
6C	Alice, Bob and Chocolate greedy, two pointers	1500	x5668
577B	Modulo Sum combinatorics, data structures, dp, two pointers	1800	x5545
1041C	Coffee Break binary search, data structures, greedy, two pointers	1500	x5536
86D	Powerful array data structures, implementation, math, two pointers	2700	x5512
1166C	A Tale of Two Lands binary search, sortings, two pointers	1600	x5361
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x5216
416A	Guess a number! greedy, implementation, two pointers	1400	x5181
1196D2	RGB Substring (hard version) data structures, dp, implementation, two pointers	1600	x5122
1036D	Vasya and Arrays greedy, two pointers	1600	x5068
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1500	x5052
318B	Strings of Power implementation, strings, two pointers	1300	x4909
1066B	Heaters greedy, two pointers	1500	x4735
279C	Ladder dp, implementation, two pointers	1700	x4721
749C	Voting greedy, implementation, two pointers	1600	x4689
1148B	Born This Way binary search, brute force, two pointers	1700	x4585
777C	Alyona and Spreadsheet binary search, data structures, dp, greedy, implementation, two pointers	1600	x4456
660C	Hard Process binary search, dp, two pointers	1600	x4430
702C	Cellular Network binary search, implementation, two pointers	1500	x4310
1257D	Yet Another Monster Killing Problem binary search, data structures, dp, greedy, sortings, two pointers	1700	x4297
493C	Vasya and Basketball binary search, brute force, data structures, implementation, sortings, two pointers	1700	x4270
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x4226
231C	To Add or Not to Add binary search, sortings, two pointers	1700	x4119
888C	K-Dominant Character binary search, implementation, two pointers	1400	x4105
519D	A and B and Interesting Substrings data structures, dp, two pointers	1900	x4099
734C	Anton and Making Potions binary search, dp, greedy, two pointers	1600	x4065
875B	Sorting the Coins dsu, implementation, sortings, two pointers	1500	x4048
924B	Three-level Laser binary search, greedy, two pointers	1600	x4036
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x4034
484B	Maximum Value binary search, math, sortings, two pointers	2100	x3999
1203D2	Remove the Substring (hard version) binary search, greedy, implementation, two pointers	1800	x3946
302B	Eugeny and Play List binary search, implementation, two pointers	1200	x3937
224B	Array bitmasks, implementation, two pointers	1500	x3925
1041D	Glider binary search, data structures, two pointers	1700	x3887
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x3807
616D	Longest k-Good Segment binary search, data structures, two pointers	1700	x3778
1304D	Shortest and Longest LIS constructive algorithms, graphs, greedy, two pointers	1800	x3536
939C	Convenient For Everybody binary search, two pointers	1600	x3503
505C	Mr. Kitayuta, the Treasure Hunter dfs and similar, dp, two pointers	2100	x3401
161A	Dress'em in Vests! binary search, brute force, greedy, two pointers	1300	x3353
237C	Primes on Interval binary search, number theory, two pointers	1600	x3319
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x3303
1060C	Maximum Subrectangle binary search, implementation, two pointers	1600	x3282
1156C	Match Points binary search, greedy, sortings, ternary search, two pointers	2000	x3166
439D	Devu and his Brother binary search, sortings, ternary search, two pointers	1900	x3098
1043D	Mysterious Crime brute force, combinatorics, math, meet-in-the-middle, two pointers	1700	x3085
1073C	Vasya and Robot binary search, two pointers	1800	x2910
1042D	Petya and Array data structures, divide and conquer, two pointers	1800	x2825
1200D	White Lines brute force, data structures, dp, implementation, two pointers	1900	x2774
1290B	Irreducible Anagrams binary search, constructive algorithms, data structures, strings, two pointers	1900	x2755
229A	Shifts brute force, two pointers	1600	x2721
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x2711
769B	News About Credit *special problem, greedy, two pointers	1600	x2687
359D	Pair of Numbers binary search, brute force, data structures, math, two pointers	2100	x2683
733C	Epidemic in Monstropolis constructive algorithms, dp, greedy, two pointers	1800	x2664
650B	Image Preview binary search, brute force, dp, two pointers	1900	x2645
1282C	Petya and Exam greedy, sortings, two pointers	1800	x2641
280B	Maximum Xor Secondary data structures, implementation, two pointers	2000	x2586
384B	Multitasking greedy, implementation, sortings, two pointers	1500	x2528
895B	XK Segments binary search, math, sortings, two pointers	1700	x2482
1188B	Count Pairs math, matrices, number theory, two pointers	2200	x2481
1223D	Sequence Sorting dp, greedy, two pointers	2000	x2435
430B	Balls Game brute force, two pointers	1400	x2430

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