Problemset - Codeforces

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Codeforces Round 954 (Div. 3)
5 days

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Difficulty: —

math

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Problems

#	Name
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x17317
1934A	Too Min Too Max greedy, math	800	x24064
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x904
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x10139
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x18479
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x21177
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x30705
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x36297
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x917
1932E	Final Countdown implementation, math, number theory	1600	x7244
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x14333
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2537
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13947
1931D	Divisible Pairs combinatorics, math, number theory	1300	x16632
1931C	Make Equal Again brute force, greedy, math	1000	x26935
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x1031
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x14124
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1670
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1551
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4309
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13701
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x24235
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x29758
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x219
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1593
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3882
1928C	Physical Education Lesson brute force, math, number theory	1600	x7820
1928A	Rectangle Cutting geometry, math	800	x21636
1927G	Paint Charges data structures, dp, greedy, math	2300	x1535
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12865
1927C	Choose the Different Ones! brute force, greedy, math	1000	x26229
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10675
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3327
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18733
1924D	Balanced Subsequences combinatorics, dp, math	2700	x799
1924C	Fractal Origami geometry, math, matrices	2400	x1068
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2333
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7227
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5333
1922C	Closest Cities greedy, implementation, math	1300	x17258
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x19471
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3554
1921E	Eat the Chip brute force, games, greedy, math	1600	x9143
1921C	Sending Messages greedy, math	900	x27867
1921A	Square greedy, math	800	x40802
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2438
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5225
1920C	Partitioning the Array brute force, math, number theory	1600	x12220
1920B	Summation Game games, greedy, math, sortings	1100	x19668
1920A	Satisfying Constraints brute force, greedy, math	800	x26834
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x793
1919A	Wallet Exchange games, math	800	x32143
1918G	Permutation of Given constructive algorithms, math	2700	x431
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12975
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x29171
1917E	Construct Matrix constructive algorithms, math	2500	x1295
1917D	Yet Another Inversions Problem combinatorics, data structures, dp, implementation, math, number theory	2300	x1691
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9643
1917A	Least Product constructive algorithms, math	800	x24532
1916H2	Matrix Rank (Hard Version) combinatorics, dp, math, matrices, string suffix structures	2700	x508
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x589
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8049
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x16983
1916B	Two Divisors constructive algorithms, math, number theory	1000	x24214
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24871
1915E	Romantic Glasses data structures, greedy, math	1300	x19253
1914G1	Light Bulbs (Easy Version) brute force, combinatorics, dfs and similar, dp, dsu, graphs, math, trees	2100	x1713
1914C	Quests greedy, math	1100	x21555
1914B	Preparing for the Contest constructive algorithms, math	800	x29032
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x55
1912F	Fugitive Frenzy math, probabilities	3100	x106
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x803
1912D	Divisibility Test math	1900	x1354
1912B	Blueprint for Seating combinatorics, divide and conquer, math	2100	x953
1909I	Short Permutation Problem combinatorics, dp, fft, math	1900	x102
1909F2	Small Permutation Problem (Hard Version) combinatorics, dp, math	2500	x848
1909F1	Small Permutation Problem (Easy Version) brute force, combinatorics, dp, math	2200	x1668
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1278
1909D	Split Plus K greedy, math, number theory	1900	x4095
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10283
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x14731
1909A	Distinct Buttons implementation, math	800	x15895
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x18887
1906M	Triangle Construction greedy, math	1700	x2405
1906K	Deck-Building Game divide and conquer, math	2500	x269
1905E	One-X combinatorics, dfs and similar, dp, math, trees	2400	x882
1905D	Cyclic MEX data structures, implementation, math, two pointers	2000	x3579
1905A	Constructive Problems constructive algorithms, math	800	x22132
1903E	Geo Game greedy, interactive, math	2000	x1848
1902F	Trees and XOR Queries Again data structures, dfs and similar, divide and conquer, graphs, implementation, math, trees	2400	x917
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12682
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6371
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x10999
1901B	Chip and Ribbon greedy, math	1100	x14259
1901A	Line Trip greedy, math	800	x26719
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x3833
1900B	Laura and Operations dp, math	900	x16396
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12578
1899A	Game with Integers games, math, number theory	800	x39846
1898D	Absolute Beauty greedy, math	1900	x4881