Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
27:43:28
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Before contest
Codeforces Round 941 (Div. 2)
27:43:28
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Problems

#	Name
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x8542
710B	Optimal Point on a Line brute force, sortings	1400	x8515
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8509
1286A	Garland dp, greedy, sortings	1800	x8380
735B	Urbanization greedy, number theory, sortings	1100	x8298
1077D	Cutting Out binary search, sortings	1600	x8294
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8280
1151D	Stas and the Queue at the Buffet greedy, math, sortings	1600	x8201
382C	Arithmetic Progression implementation, sortings	1700	x8151
1361A	Johnny and Contribution constructive algorithms, graphs, greedy, sortings	1700	x8141
940A	Points on the line brute force, greedy, sortings	1200	x8131
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x8027
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8019
653A	Bear and Three Balls brute force, implementation, sortings	900	x7991
990B	Micro-World greedy, sortings	1200	x7978
1367D	Task On The Board constructive algorithms, greedy, implementation, sortings	1800	x7959
12B	Correct Solution? implementation, sortings	1100	x7953
845C	Two TVs data structures, greedy, sortings	1500	x7856
624B	Making a String greedy, sortings	1100	x7841
1165E	Two Arrays and Sum of Functions greedy, math, sortings	1600	x7771
299A	Ksusha and Array brute force, number theory, sortings	1000	x7716
1472E	Correct Placement binary search, data structures, dp, sortings, two pointers	1700	x7701
686B	Little Robber Girl's Zoo constructive algorithms, implementation, sortings	1100	x7696
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7685
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x7669
1560E	Polycarp and String Transformation binary search, implementation, sortings, strings	1800	x7638
845A	Chess Tourney implementation, sortings	1100	x7626
1136C	Nastya Is Transposing Matrices constructive algorithms, sortings	1500	x7585
1101C	Division and Union sortings	1500	x7556
479B	Towers brute force, constructive algorithms, greedy, implementation, sortings	1400	x7541
1409E	Two Platforms binary search, dp, sortings, two pointers	1800	x7535
863B	Kayaking brute force, greedy, sortings	1500	x7533
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x7456
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7455
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7444
135A	Replacement greedy, implementation, sortings	1300	x7422
960B	Minimize the error data structures, greedy, sortings	1500	x7352
424B	Megacity binary search, greedy, implementation, sortings	1200	x7323
1420D	Rescue Nibel! combinatorics, data structures, sortings	1800	x7295
581C	Developing Skills implementation, math, sortings	1400	x7239
1619D	New Year's Problem binary search, greedy, sortings	1800	x7225
1061B	Views Matter greedy, implementation, sortings	1400	x7213
1257D	Yet Another Monster Killing Problem binary search, data structures, dp, greedy, sortings, two pointers	1700	x7198
632C	The Smallest String Concatenation sortings, strings	1700	x7183
1029C	Maximal Intersection greedy, math, sortings	1600	x7143
1121A	Technogoblet of Fire implementation, sortings	1100	x7087
1296E1	String Coloring (easy version) constructive algorithms, dp, graphs, greedy, sortings	1800	x7086
557B	Pasha and Tea constructive algorithms, implementation, math, sortings	1500	x7075
137C	History sortings	1500	x7049
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7025
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7008
234B	Reading sortings	1000	x6968
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x6954
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6953
254A	Cards with Numbers constructive algorithms, sortings	1200	x6827
967B	Watering System math, sortings	1000	x6820
79B	Colorful Field implementation, sortings	1400	x6773
484B	Maximum Value binary search, math, sortings, two pointers	2100	x6768
981B	Businessmen Problems sortings	1000	x6742
572B	Order Book data structures, greedy, implementation, sortings	1300	x6733
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x6727
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x6692
493C	Vasya and Basketball binary search, brute force, data structures, implementation, sortings, two pointers	1600	x6662
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6618
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	1800	x6587
381B	Sereja and Stairs greedy, implementation, sortings	1100	x6573
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x6559
169A	Chores sortings	800	x6544
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x6541
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6507
379C	New Year Ratings Change greedy, sortings	1400	x6492
1394A	Boboniu Chats with Du dp, greedy, sortings, two pointers	1800	x6443
811B	Vladik and Complicated Book implementation, sortings	1200	x6436
350C	Bombs greedy, implementation, sortings	1600	x6428
1000C	Covered Points Count data structures, implementation, sortings	1700	x6418
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6383
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6377
257A	Sockets greedy, implementation, sortings	1100	x6374
166C	Median greedy, math, sortings	1500	x6333
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6320
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x6275
976C	Nested Segments greedy, implementation, sortings	1500	x6267
659B	Qualifying Contest constructive algorithms, sortings	1300	x6176
1012A	Photo of The Sky brute force, implementation, math, sortings	1500	x6147
1156B	Ugly Pairs dfs and similar, greedy, implementation, sortings, strings	1800	x6125
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6083
1444B	Divide and Sum combinatorics, math, sortings	1900	x6028
1154E	Two Teams data structures, implementation, sortings	1800	x6022
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6015
291A	Spyke Talks *special problem, implementation, sortings	800	x5977
808C	Tea Party constructive algorithms, greedy, sortings	1400	x5953
1156C	Match Points binary search, greedy, sortings, ternary search, two pointers	2000	x5881
471B	MUH and Important Things implementation, sortings	1300	x5881
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x5858
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x5828
439D	Devu and his Brother binary search, sortings, ternary search, two pointers	1700	x5776
1801B	Buying gifts data structures, greedy, sortings	1800	x5771
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5766
12C	Fruits greedy, implementation, sortings	1100	x5717
525C	Ilya and Sticks greedy, math, sortings	1600	x5693