Problemset - Codeforces

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Codeforces Round 944 (Div. 4)
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number theory

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Problems

#	Name
758B	Blown Garland brute force, implementation, number theory	1100	x10052
898B	Proper Nutrition brute force, implementation, number theory	1100	x9274
1033B	Square Difference math, number theory	1100	x9157
735B	Urbanization greedy, number theory, sortings	1100	x8302
858A	k-rounding brute force, math, number theory	1100	x7848
68A	Irrational problem implementation, number theory	1100	x4816
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x26789
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x26494
1409C	Yet Another Array Restoration brute force, math, number theory	1200	x22735
1487B	Cat Cycle math, number theory	1200	x19647
776B	Sherlock and his girlfriend constructive algorithms, number theory	1200	x19290
1656C	Make Equal With Mod constructive algorithms, math, number theory, sortings	1200	x18489
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18192
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17736
1736B	Playing with GCD math, number theory	1200	x17264
456B	Fedya and Maths math, number theory	1200	x16027
1954C	Long Multiplication greedy, math, number theory	1200	x15458
1149A	Prefix Sum Primes constructive algorithms, greedy, math, number theory	1200	x14679
1277B	Make Them Odd greedy, number theory	1200	x14624
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13864
1076B	Divisor Subtraction implementation, math, number theory	1200	x12537
1133B	Preparation for International Women's Day math, number theory	1200	x12345
1068B	LCM math, number theory	1200	x11091
787A	The Monster brute force, math, number theory	1200	x11048
1143B	Nirvana brute force, math, number theory	1200	x10066
1877C	Joyboard math, number theory	1200	x10057
660A	Co-prime Array greedy, implementation, math, number theory	1200	x8530
361B	Levko and Permutation constructive algorithms, math, number theory	1200	x7880
59B	Fortune Telling implementation, number theory	1200	x6656
817A	Treasure Hunt implementation, math, number theory	1200	x6065
1184A1	Heidi Learns Hashing (Easy) brute force, math, number theory	1200	x5853
177B2	Rectangular Game number theory	1200	x2827
172B	Pseudorandom Sequence Period *special problem, implementation, number theory	1200	x2688
230B	T-primes binary search, implementation, math, number theory	1300	x69901
1294C	Product of Three Numbers greedy, math, number theory	1300	x32327
1360D	Buying Shovels math, number theory	1300	x30785
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x26152
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23439
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x20762
1454D	Number into Sequence constructive algorithms, math, number theory	1300	x19743
519C	A and B and Team Training greedy, implementation, math, number theory	1300	x19335
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x17178
1407B	Big Vova brute force, greedy, math, number theory	1300	x16680
573A	Bear and Poker implementation, math, number theory	1300	x16294
1603A	Di-visible Confusion constructive algorithms, math, number theory	1300	x16109
1931D	Divisible Pairs combinatorics, math, number theory	1300	x15804
1881D	Divide and Equalize math, number theory	1300	x14377
236B	Easy Number Challenge implementation, number theory	1300	x13473
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13236
1826C	Dreaming of Freedom greedy, math, number theory	1300	x12783
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12582
271B	Prime Matrix binary search, brute force, math, number theory	1300	x12371
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12236
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12203
1174C	Ehab and a Special Coloring Problem constructive algorithms, number theory	1300	x11802
1823C	Strongly Composite greedy, math, number theory	1300	x11667
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11371
1220B	Multiplication Table math, number theory	1300	x11338
371B	Fox Dividing Cheese math, number theory	1300	x10911
1155C	Alarm Clocks Everywhere math, number theory	1300	x9062
870C	Maximum splitting dp, greedy, math, number theory	1300	x8955
876B	Divisiblity of Differences implementation, math, number theory	1300	x8681
1209B	Koala and Lights implementation, math, number theory	1300	x7941
1113B	Sasha and Magnetic Machines greedy, number theory	1300	x7663
900B	Position in Fraction math, number theory	1300	x7627
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x7362
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6953
633B	A Trivial Problem brute force, constructive algorithms, math, number theory	1300	x6540
158D	Ice Sculptures *special problem, brute force, number theory	1300	x6170
123A	Prime Permutation implementation, number theory, strings	1300	x3515
1526B	I Hate 1111 dp, math, number theory	1400	x28699
1370C	Number Game games, math, number theory	1400	x23542
1285C	Fadi and LCM brute force, math, number theory	1400	x21964
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x20848
1350B	Orac and Models dp, math, number theory	1400	x20587
762A	k-th divisor math, number theory	1400	x17958
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x17072
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x16231
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x15970
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15854
1714E	Add Modulo 10 brute force, math, number theory	1400	x15271
1627C	Not Assigning constructive algorithms, dfs and similar, number theory, trees	1400	x14040
1606C	Banknotes greedy, number theory	1400	x13744
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13427
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x13344
1758C	Almost All Multiples greedy, number theory	1400	x12908
1759D	Make It Round brute force, number theory	1400	x12225
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11615
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10771
757B	Bash's Big Day greedy, math, number theory	1400	x9821
1091C	New Year and the Sphere Transmission math, number theory	1400	x9790
1200C	Round Corridor math, number theory	1400	x9658
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9484
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9354
337B	Routine Problem greedy, math, number theory	1400	x9094
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x8862
150A	Win or Freeze games, math, number theory	1400	x7579
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7191
937B	Vile Grasshoppers brute force, math, number theory	1400	x6792
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6368