Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
25:17:35
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Before contest
Codeforces Round 941 (Div. 2)
25:17:36
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Problems

#	Name
1082C	Multi-Subject Competition greedy, sortings	1600	x5500
501C	Misha and Forest constructive algorithms, data structures, greedy, sortings, trees	1500	x5506
313C	Ilya and Matrix constructive algorithms, greedy, implementation, sortings	1400	x5515
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5518
994B	Knights of a Polygonal Table greedy, implementation, sortings	1400	x5521
843A	Sorting by Subsequences dfs and similar, dsu, implementation, math, sortings	1400	x5522
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5525
817B	Makes And The Product combinatorics, implementation, math, sortings	1500	x5542
558E	A Simple Task data structures, sortings, strings	2300	x5558
769A	Year of University Entrance *special problem, implementation, sortings	800	x5565
203C	Photographer greedy, sortings	1400	x5567
1102E	Monotonic Renumeration combinatorics, sortings	1700	x5586
1251D	Salary Changing binary search, greedy, sortings	1900	x5610
1056D	Decorate Apple Tree constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x5614
1424G	Years data structures, sortings	1300	x5635
1175D	Array Splitting greedy, sortings	1900	x5637
525C	Ilya and Sticks greedy, math, sortings	1600	x5693
12C	Fruits greedy, implementation, sortings	1100	x5719
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5766
1801B	Buying gifts data structures, greedy, sortings	1800	x5771
439D	Devu and his Brother binary search, sortings, ternary search, two pointers	1700	x5776
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x5828
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x5858
1156C	Match Points binary search, greedy, sortings, ternary search, two pointers	2000	x5881
471B	MUH and Important Things implementation, sortings	1300	x5881
808C	Tea Party constructive algorithms, greedy, sortings	1400	x5953
291A	Spyke Talks *special problem, implementation, sortings	800	x5977
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6015
1154E	Two Teams data structures, implementation, sortings	1800	x6022
1444B	Divide and Sum combinatorics, math, sortings	1900	x6028
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6083
1156B	Ugly Pairs dfs and similar, greedy, implementation, sortings, strings	1800	x6125
1012A	Photo of The Sky brute force, implementation, math, sortings	1500	x6147
659B	Qualifying Contest constructive algorithms, sortings	1300	x6176
976C	Nested Segments greedy, implementation, sortings	1500	x6267
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x6275
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6321
166C	Median greedy, math, sortings	1500	x6333
257A	Sockets greedy, implementation, sortings	1100	x6374
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6378
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6383
1000C	Covered Points Count data structures, implementation, sortings	1700	x6418
350C	Bombs greedy, implementation, sortings	1600	x6428
811B	Vladik and Complicated Book implementation, sortings	1200	x6436
1394A	Boboniu Chats with Du dp, greedy, sortings, two pointers	1800	x6444
379C	New Year Ratings Change greedy, sortings	1400	x6492
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6507
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x6541
169A	Chores sortings	800	x6544
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x6568
381B	Sereja and Stairs greedy, implementation, sortings	1100	x6573
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	1800	x6587
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6621
493C	Vasya and Basketball binary search, brute force, data structures, implementation, sortings, two pointers	1600	x6662
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x6692
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x6732
572B	Order Book data structures, greedy, implementation, sortings	1300	x6735
981B	Businessmen Problems sortings	1000	x6742
484B	Maximum Value binary search, math, sortings, two pointers	2100	x6768
79B	Colorful Field implementation, sortings	1400	x6774
967B	Watering System math, sortings	1000	x6820
254A	Cards with Numbers constructive algorithms, sortings	1200	x6827
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6953
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x6954
234B	Reading sortings	1000	x6968
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7012
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7026
137C	History sortings	1500	x7049
557B	Pasha and Tea constructive algorithms, implementation, math, sortings	1500	x7075
1296E1	String Coloring (easy version) constructive algorithms, dp, graphs, greedy, sortings	1800	x7086
1121A	Technogoblet of Fire implementation, sortings	1100	x7087
1029C	Maximal Intersection greedy, math, sortings	1600	x7145
632C	The Smallest String Concatenation sortings, strings	1700	x7183
1257D	Yet Another Monster Killing Problem binary search, data structures, dp, greedy, sortings, two pointers	1700	x7198
1061B	Views Matter greedy, implementation, sortings	1400	x7213
1619D	New Year's Problem binary search, greedy, sortings	1800	x7225
581C	Developing Skills implementation, math, sortings	1400	x7239
1420D	Rescue Nibel! combinatorics, data structures, sortings	1800	x7295
424B	Megacity binary search, greedy, implementation, sortings	1200	x7323
960B	Minimize the error data structures, greedy, sortings	1500	x7352
135A	Replacement greedy, implementation, sortings	1300	x7423
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7444
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7456
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x7456
863B	Kayaking brute force, greedy, sortings	1500	x7533
1409E	Two Platforms binary search, dp, sortings, two pointers	1800	x7536
479B	Towers brute force, constructive algorithms, greedy, implementation, sortings	1400	x7541
1101C	Division and Union sortings	1500	x7556
1136C	Nastya Is Transposing Matrices constructive algorithms, sortings	1500	x7587
845A	Chess Tourney implementation, sortings	1100	x7626
1560E	Polycarp and String Transformation binary search, implementation, sortings, strings	1800	x7638
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x7670
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7685
686B	Little Robber Girl's Zoo constructive algorithms, implementation, sortings	1100	x7696
1472E	Correct Placement binary search, data structures, dp, sortings, two pointers	1700	x7702
299A	Ksusha and Array brute force, number theory, sortings	1000	x7716
1165E	Two Arrays and Sum of Functions greedy, math, sortings	1600	x7772
624B	Making a String greedy, sortings	1100	x7842
845C	Two TVs data structures, greedy, sortings	1500	x7857
12B	Correct Solution? implementation, sortings	1100	x7954