Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
28:41:20
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Problems

#	Name
779C	Dishonest Sellers constructive algorithms, greedy, sortings	1200	x11617
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x11701
220A	Little Elephant and Problem implementation, sortings	1300	x11789
1011A	Stages greedy, implementation, sortings	900	x11918
721B	Passwords implementation, math, sortings, strings	1100	x11965
1455D	Sequence and Swaps dp, greedy, sortings	1600	x11968
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x11975
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12004
1474C	Array Destruction brute force, constructive algorithms, data structures, greedy, implementation, sortings	1700	x12175
991B	Getting an A greedy, sortings	900	x12296
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1600	x12318
1622C	Set or Decrease binary search, brute force, greedy, sortings	1600	x12327
1088B	Ehab and subtraction implementation, sortings	1000	x12342
348A	Mafia binary search, math, sortings	1600	x12590
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x12633
1132B	Discounts greedy, sortings	900	x12688
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x12711
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x12718
998B	Cutting dp, greedy, sortings	1200	x12731
1006B	Polycarp's Practice greedy, implementation, sortings	1200	x12787
157B	Trace geometry, sortings	1000	x12834
1475E	Advertising Agency combinatorics, math, sortings	1600	x12840
1551C	Interesting Story greedy, sortings, strings	1500	x12865
992A	Nastya and an Array implementation, sortings	800	x12887
1517B	Morning Jogging constructive algorithms, greedy, sortings	1200	x13046
1238B	Kill `Em All greedy, sortings	1300	x13083
812C	Sagheer and Nubian Market binary search, sortings	1500	x13098
1654C	Alice and the Cake data structures, greedy, implementation, sortings	1400	x13144
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13145
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13172
1781B	Going to the Cinema brute force, greedy, sortings	1000	x13203
1197A	DIY Wooden Ladder greedy, math, sortings	900	x13240
1183D	Candy Box (easy version) greedy, sortings	1400	x13277
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13289
1738A	Glory Addicts greedy, implementation, sortings	800	x13319
1203E	Boxers greedy, sortings	1500	x13366
1155A	Reverse a Substring implementation, sortings, strings	1000	x13425
1561C	Deep Down Below binary search, greedy, sortings	1300	x13458
437C	The Child and Toy graphs, greedy, sortings	1400	x13482
362B	Petya and Staircases implementation, sortings	1100	x13490
1374E1	Reading Books (easy version) data structures, greedy, sortings	1600	x13503
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x13526
1197C	Array Splitting greedy, sortings	1400	x13528
1740B	Jumbo Extra Cheese 2 geometry, greedy, sortings	800	x13531
1545A	AquaMoon and Strange Sort sortings	1500	x13551
160B	Unlucky Ticket greedy, sortings	1100	x13555
1189B	Number Circle greedy, math, sortings	1100	x13646
1540A	Great Graphs constructive algorithms, graphs, greedy, shortest paths, sortings	1400	x13661
492C	Vanya and Exams greedy, sortings	1400	x13668
1117B	Emotes greedy, math, sortings	1000	x13677
1566D1	Seating Arrangements (easy version) data structures, greedy, sortings	1100	x13749
1810C	Make It Permutation brute force, greedy, sortings	1300	x13751
1305A	Kuroni and the Gifts brute force, constructive algorithms, greedy, sortings	800	x13772
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x13788
1253C	Sweets Eating dp, greedy, math, sortings	1500	x13789
1899E	Queue Sort greedy, implementation, sortings	1300	x13803
1296D	Fight with Monsters greedy, sortings	1500	x13848
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x13861
1623B	Game on Ranges brute force, dfs and similar, implementation, sortings	1100	x13891
714B	Filya and Homework implementation, sortings	1200	x14001
439B	Devu, the Dumb Guy implementation, sortings	1200	x14021
1573B	Swaps greedy, math, sortings	1400	x14136
1348C	Phoenix and Distribution constructive algorithms, greedy, sortings, strings	1600	x14174
1530C	Pursuit binary search, brute force, greedy, sortings	1200	x14222
1106C	Lunar New Year and Number Division greedy, implementation, math, sortings	900	x14265
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x14308
1417B	Two Arrays greedy, math, sortings	1100	x14322
1397B	Power Sequence brute force, math, number theory, sortings	1500	x14342
1704C	Virus greedy, implementation, sortings	1200	x14351
1131C	Birthday binary search, greedy, sortings	1200	x14402
1741D	Masha and a Beautiful Tree dfs and similar, divide and conquer, graphs, sortings, trees	1300	x14411
1452B	Toy Blocks binary search, greedy, math, sortings	1400	x14418
1617C	Paprika and Permutation binary search, greedy, math, sortings	1300	x14435
1839B	Lamps greedy, sortings	1100	x14447
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x14471
1025A	Doggo Recoloring implementation, sortings	900	x14520
1863B	Split Sort greedy, math, sortings	1100	x14534
1808B	Playing in a Casino math, sortings	1200	x14563
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x14653
1876A	Helmets in Night Light greedy, sortings	1000	x14658
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14683
1738B	Prefix Sum Addicts constructive algorithms, greedy, math, sortings	1200	x14720
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x14726
1144C	Two Shuffled Sequences constructive algorithms, sortings	1000	x14794
937A	Olympiad implementation, sortings	800	x14818
1446A	Knapsack constructive algorithms, greedy, sortings	1300	x14879
1443C	The Delivery Dilemma binary search, greedy, sortings	1400	x14929
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x14945
637B	Chat Order *special problem, binary search, constructive algorithms, data structures, sortings	1200	x14992
510C	Fox And Names dfs and similar, graphs, sortings	1600	x15038
1728C	Digital Logarithm data structures, greedy, sortings	1400	x15045
1733C	Parity Shuffle Sorting constructive algorithms, sortings	1300	x15062
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15090
1174B	Ehab Is an Odd Person sortings	1200	x15104
461A	Appleman and Toastman greedy, sortings	1200	x15165
1344A	Hilbert's Hotel math, number theory, sortings	1600	x15172
242B	Big Segment implementation, sortings	1100	x15180
1486B	Eastern Exhibition binary search, geometry, shortest paths, sortings	1500	x15194
1670A	Prof. Slim greedy, implementation, sortings	800	x15228
1823B	Sort with Step brute force, math, sortings	900	x15281