Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
32:55:58
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math

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Problems

#	Name
1529A	Eshag Loves Big Arrays constructive algorithms, greedy, math	800	x29350
82A	Double Cola implementation, math	1100	x29394
1622A	Construct a Rectangle geometry, math	800	x29426
1141A	Game 23 implementation, math	1000	x29496
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x29527
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x29580
1473B	String LCM brute force, math, number theory, strings	1000	x29606
1519B	The Cake Is a Lie dp, math	800	x29683
1878B	Aleksa and Stack constructive algorithms, math	800	x29725
1691A	Beat The Odds brute force, greedy, math	800	x29803
1547A	Shortest Path with Obstacle implementation, math	800	x29849
1811A	Insert Digit greedy, math, strings	800	x29947
1619B	Squares and Cubes implementation, math	800	x29990
1553A	Digits Sum math, number theory	800	x30068
1506A	Strange Table math	800	x30078
688B	Lovely Palindromes constructive algorithms, math	1000	x30137
1611A	Make Even constructive algorithms, math	800	x30540
1490A	Dense Array greedy, math	800	x30578
1360D	Buying Shovels math, number theory	1300	x30672
268B	Buttons implementation, math	1000	x30812
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x30966
1538B	Friends and Candies greedy, math	800	x30979
766B	Mahmoud and a Triangle constructive algorithms, geometry, greedy, math, number theory, sortings	1000	x31015
1339A	Filling Diamonds brute force, dp, implementation, math	900	x31017
1462C	Unique Number brute force, greedy, math	900	x31158
1490C	Sum of Cubes binary search, brute force, brute force, math	1100	x31212
1549A	Gregor and Cryptography math, number theory	800	x31272
1846A	Rudolph and Cut the Rope implementation, math	800	x31297
1716A	2-3 Moves greedy, math	800	x31313
1675A	Food for Animals greedy, math	800	x31427
1618A	Polycarp and Sums of Subsequences math, sortings	800	x31490
1919A	Wallet Exchange games, math	800	x31587
822A	I'm bored with life implementation, math, number theory	800	x31614
1294C	Product of Three Numbers greedy, math, number theory	1300	x32180
1669C	Odd/Even Increments greedy, greedy, implementation, math	800	x32748
1473A	Replacing Elements greedy, implementation, math, sortings	800	x32808
1337B	Kana and Dragon Quest game greedy, implementation, math	900	x33006
1950C	Clock Conversion implementation, math	800	x33765
1858A	Buttons games, greedy, math	800	x33977
1624B	Make AP implementation, math	900	x34099
1353C	Board Moves math	1000	x34127
1955A	Yogurt Sale math	800	x34214
1363A	Odd Selection brute force, implementation, math	1200	x34306
1560B	Who's Opposite? math	800	x34643
1873C	Target Practice implementation, math	800	x34903
1476A	K-divisible Sum binary search, constructive algorithms, greedy, math	1000	x34913
1660A	Vasya and Coins greedy, math	800	x34955
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x35076
1352B	Same Parity Summands constructive algorithms, math	1200	x35176
478B	Random Teams combinatorics, constructive algorithms, greedy, math	1300	x35185
1521A	Nastia and Nearly Good Numbers constructive algorithms, math, number theory	1000	x35236
1593A	Elections math	800	x35462
1790A	Polycarp and the Day of Pi implementation, math, strings	800	x35528
1369A	FashionabLee geometry, math	800	x35528
1537A	Arithmetic Array greedy, math	800	x35887
1337A	Ichihime and Triangle constructive algorithms, math	800	x35934
124A	The number of positions math	1000	x36211
1368A	C+= brute force, greedy, implementation, math	800	x36683
1327A	Sum of Odd Integers math	1100	x36777
1872A	Two Vessels brute force, greedy, math	800	x37137
1899A	Game with Integers games, math, number theory	800	x37346
1385A	Three Pairwise Maximums math	800	x37501
1579A	Casimir's String Solitaire math, strings	800	x37738
1358A	Park Lighting greedy, math	800	x38033
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x38237
1342A	Road To Zero greedy, math	1000	x38246
1348A	Phoenix and Balance greedy, math	800	x38316
1941A	Rudolf and the Ticket brute force, math	800	x38431
1729A	Two Elevators math	800	x38787
1353A	Most Unstable Array constructive algorithms, greedy, math	800	x38907
1296A	Array with Odd Sum math	800	x39359
1921A	Square greedy, math	800	x39659
742A	Arpa’s hard exam and Mehrdad’s naive cheat implementation, math, number theory	1000	x39731
233A	Perfect Permutation implementation, math	800	x40314
1311A	Add Odd or Subtract Even greedy, implementation, math	800	x40616
1472A	Cards for Friends greedy, math	800	x40774
476A	Dreamoon and Stairs implementation, math	1000	x41007
1542A	Odd Set math	800	x42112
1520D	Same Differences data structures, hashing, math	1200	x42417
1520B	Ordinary Numbers brute force, math, number theory	800	x42699
584A	Olesya and Rodion math	1000	x42716
1857A	Array Coloring greedy, math	800	x43159
270A	Fancy Fence geometry, implementation, math	1100	x43342
1873B	Good Kid brute force, greedy, math	800	x43886
959A	Mahmoud and Ehab and the even-odd game games, math	800	x43951
1294A	Collecting Coins math	800	x44163
460A	Vasya and Socks brute force, implementation, math	900	x44181
1371A	Magical Sticks math	800	x44191
1676B	Equal Candies greedy, math, sortings	800	x44922
1426A	Floor Number implementation, math	800	x45403
1374B	Multiply by 2, divide by 6 math	900	x45672
1343A	Candies brute force, math	900	x46187
1475B	New Year's Number brute force, dp, math	900	x46263
749A	Bachgold Problem greedy, implementation, math, number theory	800	x46317
1283A	Minutes Before the New Year math	800	x46381
1472B	Fair Division dp, greedy, math	800	x47336
520B	Two Buttons dfs and similar, graphs, greedy, implementation, math, shortest paths	1400	x47762
1360A	Minimal Square greedy, math	800	x47896
1551A	Polycarp and Coins greedy, math	800	x48236
1370A	Maximum GCD greedy, implementation, math, number theory	800	x48573