Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
3 days
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Codeforces Round 941 (Div. 2)
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math

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Problems

#	Name
47A	Triangular numbers brute force, math	800	x14223
1881D	Divide and Equalize math, number theory	1300	x14188
1422B	Nice Matrix greedy, implementation, math	1300	x14168
1260A	Heating math	1000	x14148
1573B	Swaps greedy, math, sortings	1400	x14135
1825B	LuoTianyi and the Table greedy, math	1000	x14128
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x14078
527A	Playing with Paper implementation, math	1100	x14076
260A	Adding Digits implementation, math	1400	x14072
1954C	Long Multiplication greedy, math, number theory	1200	x14024
1954B	Make It Ugly implementation, math	1200	x14023
1901B	Chip and Ribbon greedy, math	1100	x13895
797A	k-Factorization implementation, math, number theory	1100	x13887
1245A	Good ol' Numbers Coloring math, number theory	1000	x13875
591A	Wizards' Duel implementation, math	900	x13870
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x13851
1459B	Move and Turn dp, math	1300	x13846
114A	Cifera math	1000	x13831
588B	Duff in Love math	1300	x13815
389A	Fox and Number Game greedy, math	1000	x13813
1205A	Almost Equal constructive algorithms, greedy, math	1200	x13803
1253C	Sweets Eating dp, greedy, math, sortings	1500	x13780
1248A	Integer Points geometry, math	1000	x13749
914A	Perfect Squares brute force, implementation, math	900	x13724
1330B	Dreamoon Likes Permutations implementation, math	1400	x13708
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13680
1873F	Money Trees binary search, greedy, math, two pointers	1300	x13667
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x13659
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13648
1117B	Emotes greedy, math, sortings	1000	x13648
1189B	Number Circle greedy, math, sortings	1100	x13638
1447A	Add Candies constructive algorithms, math	800	x13635
1183C	Computer Game binary search, math	1400	x13629
1041B	Buying a TV Set math	1000	x13623
1342C	Yet Another Counting Problem math, number theory	1600	x13577
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13561
1491B	Minimal Cost brute force, math	1200	x13554
1821C	Tear It Apart brute force, implementation, math, strings	1300	x13526
1583A	Windblume Ode math, number theory	800	x13523
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x13500
1542C	Strange Function math, number theory	1600	x13475
1165A	Remainder implementation, math	1100	x13460
979A	Pizza, Pizza, Pizza!!! math	1000	x13414
1815A	Ian and Array Sorting greedy, math	1300	x13384
854A	Fraction brute force, constructive algorithms, math	800	x13362
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13358
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13356
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13355
1863C	MEX Repetition implementation, math	1100	x13303
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x13280
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13276
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13269
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x13261
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13254
1359C	Mixing Water binary search, math	1700	x13237
1197A	DIY Wooden Ladder greedy, math, sortings	900	x13236
1581A	CQXYM Count Permutations combinatorics, math, number theory	800	x13229
727A	Transformation: from A to B brute force, dfs and similar, math	1000	x13169
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13154
576A	Vasya and Petya's Game math, number theory	1500	x13140
1366C	Palindromic Paths greedy, math	1500	x13127
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x13122
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13105
1181A	Chunga-Changa greedy, math	1000	x13089
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13079
1527C	Sequence Pair Weight hashing, implementation, math	1600	x13079
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13072
1038B	Non-Coprime Partition constructive algorithms, math	1100	x13071
1584B	Coloring Rectangles greedy, math	1000	x13049
1603B	Moderate Modular Mode constructive algorithms, math, number theory	1600	x13041
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13040
1538D	Another Problem About Dividing Numbers constructive algorithms, math, number theory	1700	x13004
143A	Help Vasilisa the Wise 2 brute force, math	1000	x13004
1307B	Cow and Friend geometry, greedy, math	1300	x12907
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x12900
1562C	Rings constructive algorithms, math	1500	x12879
581B	Luxurious Houses implementation, math	1100	x12877
1802B	Settlement of Guinea Pigs greedy, implementation, math	1000	x12870
1778B	The Forbidden Permutation greedy, math	1300	x12867
1278B	A and B greedy, math	1500	x12861
869B	The Eternal Immortality math	1100	x12861
1733D1	Zero-One (Easy Version) constructive algorithms, greedy, math	1400	x12859
1475E	Advertising Agency combinatorics, math, sortings	1600	x12827
1546B	AquaMoon and Stolen String interactive, math	1200	x12818
1283C	Friends and Gifts constructive algorithms, data structures, math	1500	x12770
1031A	Golden Plate implementation, math	800	x12751
1826C	Dreaming of Freedom greedy, math, number theory	1300	x12722
620A	Professor GukiZ's Robot implementation, math	800	x12710
1163A	Eating Soup greedy, math	900	x12699
554A	Kyoya and Photobooks brute force, math, strings	900	x12688
1787B	Number Factorization greedy, math, number theory	1100	x12650
1650D	Twist the Permutation brute force, constructive algorithms, implementation, math	1300	x12642
735D	Taxes math, number theory	1600	x12610
348A	Mafia binary search, math, sortings	1600	x12575
697A	Pineapple Incident implementation, math	900	x12563
1834C	Game with Reversing games, greedy, math, strings	1200	x12561
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12527
282B	Painting Eggs greedy, math	1500	x12527
1444A	Division brute force, math, number theory	1500	x12522
1076B	Divisor Subtraction implementation, math, number theory	1200	x12515