Problemset - Codeforces

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Codeforces Round 962 (Div. 3)
26:29:00
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number theory

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Problems

#	Name
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory		x4838
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings		x90
1994D	Funny Game constructive algorithms, dsu, graphs, greedy, math, number theory, trees		x3948
1992F	Valuable Cards brute force, dp, greedy, number theory, two pointers	1900	x4523
1986G2	Permutation Problem (Hard Version) brute force, data structures, hashing, math, number theory	2500	x859
1986G1	Permutation Problem (Simple Version) binary search, brute force, combinatorics, data structures, math, number theory	2200	x1215
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x7475
1985G	D-Function combinatorics, math, number theory	1600	x7895
1985B	Maximum Multiple Sum brute force, math, number theory	800	x40388
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x6166
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x15132
1981D	Turtle and Multiplication constructive algorithms, dfs and similar, graphs, number theory	2400	x1372
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x12873
1979C	Earning on Bets binary search, combinatorics, constructive algorithms, number theory	1200	x17050
1978F	Large Graph data structures, dfs and similar, dsu, graphs, number theory, two pointers	2400	x1135
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x6017
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x183
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x23121
1968A	Maximize? brute force, math, number theory	800	x31519
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x3595
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x12108
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6061
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1145
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x4103
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x2041
1954C	Long Multiplication greedy, math, number theory	1200	x18080
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x13382
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x21986
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2287
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x579
1945B	Fireworks math, number theory	900	x21453
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x206
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x19192
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x21767
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x31379
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x986
1932E	Final Countdown implementation, math, number theory	1600	x7593
1932B	Chaya Calendar number theory	1100	x19775
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2621
1931D	Divisible Pairs combinatorics, math, number theory	1300	x17399
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1619
1928C	Physical Education Lesson brute force, math, number theory	1600	x8060
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x11130
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x19183
1920C	Partitioning the Array brute force, math, number theory	1600	x12696
1917D	Yet Another Inversions Problem combinatorics, data structures, dp, implementation, math, number theory	2300	x1716
1916G	Optimizations From Chelsu divide and conquer, dp, number theory, trees	3500	x143
1916B	Two Divisors constructive algorithms, math, number theory	1000	x24760
1916A	2023 constructive algorithms, implementation, math, number theory	800	x25173
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1310
1909D	Split Plus K greedy, math, number theory	1900	x4198
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x15481
1907E	Good Triples brute force, combinatorics, number theory	1600	x9557
1906G	Grid Game 2 games, number theory	2900	x159
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13041
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x3950
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12964
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x19422
1899A	Game with Integers games, math, number theory	800	x41643
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x98
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x87
1884D	Counting Rhyme dp, math, number theory	2100	x3038
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x989
1881D	Divide and Equalize math, number theory	1300	x15963
1879F	Last Man Standing brute force, data structures, number theory	2800	x495
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3970
1877C	Joyboard math, number theory	1200	x10588
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7952
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11286
1872C	Non-coprime Split math, number theory	1100	x22794
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7476
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13100
1859A	United We Stand constructive algorithms, math, number theory	800	x30826
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22584
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x11041
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x25227
1852A	Ntarsis' Set binary search, math, number theory	1800	x7818
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x18214
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x763
1848C	Vika and Price Tags math, number theory	1800	x6153
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x364
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x25974
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x686
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12042
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x14015
1835D	Doctor's Brown Hypothesis dfs and similar, graphs, math, number theory	2900	x468
1834E	MEX of LCM binary search, data structures, implementation, math, number theory	2300	x2138
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1583
1828B	Permutation Swap math, number theory	900	x21872
1826C	Dreaming of Freedom greedy, math, number theory	1300	x13215
1826B	Lunatic Never Content math, number theory	1100	x16725
1823C	Strongly Composite greedy, math, number theory	1300	x12019
1822G2	Magic Triples (Hard Version) brute force, data structures, math, number theory	2200	x2367
1822G1	Magic Triples (Easy Version) brute force, data structures, math, number theory	1700	x6842
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17133
1815E	Bosco and Particle dp, math, number theory, strings	3100	x335
1812F	Factorization *special problem, number theory		x972
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4366
1811E	Living Sequence binary search, dp, math, number theory	1500	x11971
1810B	Candies constructive algorithms, math, number theory	800	x17327

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