Problemset - Codeforces

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Educational Codeforces Round 81 (Rated for Div. 2)
6 days

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Difficulty: —

binary search

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Problems

#	Name
492B	Vanya and Lanterns binary search, implementation, math, sortings	1200	x23361
230B	T-primes binary search, implementation, math, number theory	1300	x21238
750A	New Year and Hurry binary search, brute force, implementation, math	800	x20206
706B	Interesting drink binary search, dp, implementation	1100	x16781
474B	Worms binary search, implementation	1300	x16578
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x15398
279B	Books binary search, brute force, implementation, two pointers	1400	x13585
919B	Perfect Number binary search, brute force, dp, implementation, number theory	1100	x12323
580B	Kefa and Company binary search, sortings, two pointers	1500	x10013
1195B	Sport Mafia binary search, brute force, math	1100	x9469
1288A	Deadline binary search, brute force, math, ternary search	1100	x8925
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x8890
1221C	Perfect Team binary search, math	1200	x8739
1217A	Creating a Character binary search, math	1300	x8552
978C	Letters binary search, implementation, two pointers	1000	x8486
1006C	Three Parts of the Array binary search, data structures, two pointers	1300	x8324
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x7943
676C	Vasya and String binary search, dp, strings, two pointers	1500	x7771
1293A	ConneR and the A.R.C. Markland-N binary search, brute force, implementation	1100	x7710
1138A	Sushi for Two binary search, greedy, implementation	900	x7648
1131C	Birthday binary search, greedy, sortings	1200	x7396
166A	Rank List binary search, implementation, sortings	1200	x7312
1099B	Squares and Segments binary search, constructive algorithms, math	1100	x7188
1042A	Benches binary search, implementation	1200	x7164
1260B	Obtain Two Zeroes binary search, math	1200	x7157
1187B	Letters Shop binary search, implementation, strings	1300	x7139
126B	Password binary search, dp, hashing, string suffix structures, strings	1800	x7051
1183C	Computer Game binary search, math	1400	x7018
732C	Sanatorium binary search, constructive algorithms, greedy, implementation, math	1300	x6872
371C	Hamburgers binary search, brute force	1600	x6796
1279B	Verse For Santa binary search, brute force, implementation	1300	x6782
911B	Two Cakes binary search, brute force, implementation	1200	x6653
1076C	Meme Problem binary search, math	1300	x6640
251A	Points on Line binary search, combinatorics, two pointers	1400	x6635
348A	Mafia binary search, math, sortings	1700	x6617
1201C	Maximum Median binary search, greedy, math, sortings	1400	x6610
1011B	Planning The Expedition binary search, brute force, implementation	1200	x6498
1100C	NN and the Optical Illusion binary search, geometry, math	1300	x6466
701C	They Are Everywhere binary search, strings, two pointers	1500	x6455
165B	Burning Midnight Oil binary search, implementation	1500	x6291
1284B	New Year and Ascent Sequence binary search, combinatorics, data structures, dp, implementation, sortings	1500	x6181
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x6141
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x6093
812C	Sagheer and Nubian Market binary search, sortings	1500	x6082
670D1	Magic Powder - 1 binary search, brute force, implementation	1400	x6009
778A	String Game binary search, greedy, strings	1600	x5992
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x5977
271B	Prime Matrix binary search, brute force, math, number theory	1400	x5918
1249C2	Good Numbers (hard version) binary search, greedy, math, meet-in-the-middle	1500	x5912
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1700	x5905
448D	Multiplication Table binary search, brute force	1900	x5888
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1200	x5842
816B	Karen and Coffee binary search, data structures, implementation	1400	x5777
567C	Geometric Progression binary search, data structures, dp	1700	x5758
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1400	x5757
1010A	Fly binary search, math	1500	x5616
1208B	Uniqueness binary search, brute force, implementation, two pointers	1500	x5564
604B	More Cowbell binary search, greedy	1400	x5538
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	900	x5481
607A	Chain Reaction binary search, dp	1600	x5473
1041C	Coffee Break binary search, data structures, greedy, two pointers	1500	x5396
637B	Chat Order *special problem, binary search, constructive algorithms, data structures, sortings	1500	x5387
991C	Candies binary search, implementation	1500	x5358
1198B	Welfare State binary search, brute force, data structures, sortings	1600	x5351
274A	k-Multiple Free Set binary search, greedy, sortings	1600	x5346
996B	World Cup binary search, math	1300	x5247
1166C	A Tale of Two Lands binary search, sortings, two pointers	1600	x5204
932B	Recursive Queries binary search, data structures, dfs and similar	1300	x5169
785C	Anton and Fairy Tale binary search, math	1600	x5106
192A	Funky Numbers binary search, brute force, implementation	1300	x5100
670D2	Magic Powder - 2 binary search, implementation	1500	x5096
385C	Bear and Prime Numbers binary search, brute force, data structures, dp, implementation, math, number theory	1800	x5056
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x5031
750C	New Year and Rating binary search, greedy, math	1600	x5021
923B	Producing Snow binary search, data structures	1600	x4955
975C	Valhalla Siege binary search	1400	x4609
538C	Tourist's Notes binary search, brute force, greedy, implementation, math	1600	x4599
527C	Glass Carving binary search, data structures, implementation	1800	x4547
780B	The Meeting Place Cannot Be Changed binary search	1600	x4452
1223C	Save the Nature binary search, greedy	1600	x4438
1148B	Born This Way binary search, brute force, two pointers	1700	x4423
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1600	x4334
777C	Alyona and Spreadsheet binary search, data structures, dp, greedy, implementation, two pointers	1600	x4290
424B	Megacity binary search, greedy, implementation, sortings	1200	x4223
706D	Vasiliy's Multiset binary search, bitmasks, data structures, trees	1800	x4214
660C	Hard Process binary search, dp, two pointers	1600	x4205
493C	Vasya and Basketball binary search, brute force, data structures, implementation, sortings, two pointers	1700	x4190
1073D	Berland Fair binary search, brute force, data structures, greedy	1700	x4161
702C	Cellular Network binary search, implementation, two pointers	1500	x4149
547B	Mike and Feet binary search, data structures, dp, dsu	2100	x4118
75C	Modified GCD binary search, number theory	1600	x4091
340D	Bubble Sort Graph binary search, data structures, dp	1800	x4086
1257D	Yet Another Monster Killing Problem binary search, data structures, dp, greedy, sortings, two pointers	1700	x4045
734C	Anton and Making Potions binary search, dp, greedy, two pointers	1600	x3986
924B	Three-level Laser binary search, greedy, two pointers	1600	x3961
573B	Bear and Blocks binary search, data structures, dp, math	1800	x3956
231C	To Add or Not to Add binary search, sortings, two pointers	1700	x3950
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x3947
1175C	Electrification binary search, brute force, greedy	1600	x3945
416C	Booking System binary search, dp, greedy, implementation	1600	x3940

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