Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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number theory

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Problems

#	Name
2041F	Segmentation Folds brute force, dfs and similar, number theory	2400	x151
2039G	Shohag Loves Pebae math, number theory	3500	x15
2039F2	Shohag Loves Counting (Hard Version) dp, number theory	3200	x88
2039F1	Shohag Loves Counting (Easy Version) combinatorics, dp, math, number theory	2800	x211
2039D	Shohag Loves GCD constructive algorithms, greedy, math, number theory	1700	x3387
2039C2	Shohag Loves XOR (Hard Version) bitmasks, brute force, math, number theory	1800	x2782
2039C1	Shohag Loves XOR (Easy Version) bitmasks, brute force, math, number theory	1200	x6918
2039A	Shohag Loves Mod constructive algorithms, number theory	800	x10855
2038K	Grid Walk brute force, dp, greedy, math, number theory	2100	x924
2037G	Natlan Exploring bitmasks, combinatorics, data structures, dp, math, number theory	2000	x1974
2037C	Superultra's Favorite Permutation constructive algorithms, greedy, math, number theory	1000	x15182
2036G	Library of Magic binary search, constructive algorithms, divide and conquer, interactive, math, number theory	2200	x1075
2036F	XORificator 3000 bitmasks, dp, number theory, two pointers	1900	x3329
2035B	Everyone Loves Tres constructive algorithms, greedy, math, number theory	900	x14643
2033F	Kosuke's Sloth brute force, math, number theory	1800	x5224
2032A	Circuit greedy, implementation, math, number theory	800	x20241
2031C	Penchick and BBQ Buns constructive algorithms, math, number theory	1300	x9316
2029E	Common Generator brute force, constructive algorithms, math, number theory	2100	x2394
2021B	Maximize Mex brute force, greedy, math, number theory	1200	x14296
2020F	Count Leaves dp, math, number theory	2900	x195
2020A	Find Minimum Operations bitmasks, brute force, greedy, math, number theory	800	x21859
2013E	Prefix GCD brute force, dp, greedy, math, number theory	2200	x3200
2008H	Sakurako's Test binary search, brute force, greedy, math, number theory	2100	x2912
2008G	Sakurako's Task binary search, greedy, math, number theory	1800	x5162
2008F	Sakurako's Box combinatorics, math, number theory	1400	x12502
2007C	Dora and C++ math, number theory	1500	x12236
2007A	Dora's Set greedy, math, number theory	800	x22646
2006C	Eri and Expanded Sets data structures, divide and conquer, math, number theory, two pointers	2300	x1642
2005D	Alter the GCD binary search, brute force, data structures, divide and conquer, implementation, number theory	2400	x875
2004E	Not a Nim Problem brute force, games, math, number theory	2100	x4059
2002F2	Court Blue (Hard Version) brute force, dp, math, number theory	2800	x433
2002F1	Court Blue (Easy Version) brute force, dfs and similar, dp, math, number theory	2600	x823
1998B	Minimize Equal Sum Subarrays constructive algorithms, math, number theory	1000	x23834
1996D	Fun binary search, brute force, combinatorics, math, number theory	1500	x16021
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory	1800	x8599
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings	3500	x706
1994D	Funny Game constructive algorithms, dsu, graphs, greedy, math, number theory, trees	1900	x5787
1993F2	Dyn-scripted Robot (Hard Version) chinese remainder theorem, math, number theory	2800	x419
1993F1	Dyn-scripted Robot (Easy Version) brute force, chinese remainder theorem, constructive algorithms, math, number theory	2400	x1003
1992F	Valuable Cards brute force, dp, greedy, number theory, two pointers	1900	x5775
1991H	Prime Split Game bitmasks, dp, fft, games, math, number theory	3300	x505
1991D	Prime XOR Coloring bitmasks, constructive algorithms, graphs, greedy, math, number theory	1900	x6687
1986G2	Permutation Problem (Hard Version) brute force, data structures, hashing, math, number theory	2500	x1094
1986G1	Permutation Problem (Simple Version) binary search, brute force, combinatorics, data structures, math, number theory	2200	x1502
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x8869
1985G	D-Function combinatorics, math, number theory	1600	x9467
1985B	Maximum Multiple Sum brute force, math, number theory	800	x46575
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x7194
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x17010
1981D	Turtle and Multiplication constructive algorithms, dfs and similar, graphs, number theory	2400	x1682
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x14365
1979C	Earning on Bets binary search, combinatorics, constructive algorithms, number theory	1200	x18851
1978F	Large Graph data structures, dfs and similar, dsu, graphs, number theory, two pointers	2400	x1351
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x6793
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x232
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x25173
1968A	Maximize? brute force, math, number theory	800	x34759
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x3958
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x13370
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6780
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1283
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x4585
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x2330
1954C	Long Multiplication greedy, math, number theory	1200	x19560
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x14572
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x23349
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2585
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x679
1945B	Fireworks math, number theory	900	x22866
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x241
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x20476
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x22790
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x33094
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x1098
1932E	Final Countdown implementation, math, number theory	1600	x8331
1932B	Chaya Calendar number theory	1100	x20985
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2887
1931D	Divisible Pairs combinatorics, math, number theory	1300	x19315
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1744
1928C	Physical Education Lesson brute force, math, number theory	1600	x8693
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x12109
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x20287
1920C	Partitioning the Array brute force, math, number theory	1600	x13925
1917D	Yet Another Inversions Problem combinatorics, data structures, dp, implementation, math, number theory	2300	x1823
1916G	Optimizations From Chelsu divide and conquer, dp, number theory, trees	3500	x149
1916B	Two Divisors constructive algorithms, math, number theory	1000	x26230
1916A	2023 constructive algorithms, implementation, math, number theory	800	x26180
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1417
1909D	Split Plus K greedy, math, number theory	1900	x4504
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x17495
1907E	Good Triples brute force, combinatorics, number theory	1600	x10516
1906G	Grid Game 2 games, number theory	2900	x212
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13999
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x4326
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x13696
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x21150
1899A	Game with Integers games, math, number theory	800	x48206
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x105
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x90
1884D	Counting Rhyme dp, math, number theory	2100	x3295

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