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
1985G	D-Function combinatorics, math, number theory		x5843
1985E	Secret Box brute force, combinatorics, math		x14437
1985D	Manhattan Circle implementation, math		x26060
1985B	Maximum Multiple Sum brute force, math, number theory		x33995
1984F	Reconstruction brute force, dp, math	2500	x643
1984D	''a'' String Problem brute force, hashing, implementation, math, string suffix structures, strings	2000	x2404
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x5527
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x12105
1984B	Large Addition implementation, math	1100	x14142
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x3885
1981B	Turtle and an Infinite Sequence bitmasks, math	1300	x10777
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x18535
1980F2	Field Division (hard version) math, sortings	2400	x677
1980F1	Field Division (easy version) data structures, math, sortings	1900	x2809
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x8036
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x11184
1980A	Problem Generator math	800	x34247
1978D	Elections data structures, greedy, implementation, math		x6484
1978C	Manhattan Permutations constructive algorithms, greedy, implementation, math		x9336
1978B	New Bakery binary search, greedy, math, ternary search		x15544
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x5420
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x15225
1977A	Little Nikita math	800	x26406
1976E	Splittable Permutations combinatorics, data structures, dfs and similar, greedy, math, trees	2500	x731
1975G	Zimpha Fan Club fft, greedy, math, strings	3000	x176
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x630
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x14786
1974A	Phone Desktop greedy, math	800	x29622
1973E	Cat, Fox and Swaps graphs, math, sortings	2500	x656
1973D	Cat, Fox and Maximum Array Split brute force, interactive, math	2400	x1628
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x7018
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x12034
1973A	Chess For Three brute force, dp, implementation, math	900	x21118
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x8278
1971E	Find the Car binary search, math, sortings	1500	x11740
1969D	Shop Game data structures, greedy, math, sortings	1900	x3811
1969A	Two Friends constructive algorithms, implementation, math	800	x17938
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x1608
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x13035
1968A	Maximize? brute force, math, number theory	800	x30035
1967E2	Again Counting Arrays (Hard Version) combinatorics, dp, math	3500	x80
1967E1	Again Counting Arrays (Easy Version) combinatorics, dp, fft, math	3100	x161
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1432
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x3427
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x11404
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x10601
1965A	Everything Nim games, greedy, math, sortings	1400	x11594
1958B	Clock in the Pool *special problem, math	1400	x704
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1080
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x3949
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x8389
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x730
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1310
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3462
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x11533
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3835
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6285
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x19032
1955A	Yogurt Sale math	800	x38896
1954F	Unique Strings combinatorics, dp, math	3100	x226
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1939
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5312
1954C	Long Multiplication greedy, math, number theory	1200	x17205
1954B	Make It Ugly implementation, math	1200	x16671
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x21789
1952G	Mathematician Takeover binary search, dfs and similar, math		x964
1952E	Sweep Line combinatorics, games, math		x219
1951G	Clacking Balls combinatorics, math, probabilities	3100	x284
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3220
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4986
1951C	Ticket Hoarding greedy, math, sortings	1400	x10398
1951A	Dual Trigger constructive algorithms, greedy, math	900	x17823
1950C	Clock Conversion implementation, math	800	x36615
1949K	Make Triangle constructive algorithms, math	2800	x258
1949H	Division Avoidance greedy, math	3100	x78
1949E	Damage per Second brute force, math	2900	x89
1948F	Rare Coins combinatorics, math, probabilities	2500	x1185
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2204
1946B	Maximum Sum dp, greedy, math	1100	x18757
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x548
1945B	Fireworks math, number theory	900	x20680
1945A	Setting up Camp greedy, math	800	x25788
1944A	Destroying Bridges graphs, greedy, math	800	x22057
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1310
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3473
1942G	Bessie and Cards combinatorics, dp, math	2800	x396
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x604
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5716
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x10012
1942B	Bessie and MEX constructive algorithms, math	1100	x12844
1942A	Farmer John's Challenge constructive algorithms, math	800	x16266
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x27419
1941A	Rudolf and the Ticket brute force, math	800	x40038
1937A	Shuffle Party implementation, math	800	x22046
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x99
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2549
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6790
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1214
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7579
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6227

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