Problemset - Codeforces

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Pinely Round 4 (Div. 1 + Div. 2)
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Problems

#	Name
1996F	Bomb binary search, greedy, math		x1363
1996A	Legs math		x27630
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory		x5365
1995B2	Bouquet (Hard Version) binary search, data structures, greedy, math, sortings, two pointers		x6146
1995A	Diagonals brute force, greedy, implementation, math		x18488
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings		x97
1994G	Minecraft bitmasks, brute force, dp, graphs, math		x615
1994E	Wooden Game bitmasks, greedy, math, trees		x3040
1994D	Funny Game constructive algorithms, dsu, graphs, greedy, math, number theory, trees		x4021
1994B	Fun Game bitmasks, constructive algorithms, greedy, math		x13233
1992G	Ultra-Meow combinatorics, dp, math	2000	x2243
1992E	Novice's Mistake brute force, constructive algorithms, implementation, math, strings	1700	x7654
1992C	Gorilla and Permutation constructive algorithms, math	900	x25271
1992B	Angry Monk greedy, math, sortings	800	x29679
1992A	Only Pluses brute force, constructive algorithms, greedy, math, sortings	800	x34993
1990C	Mad MAD Sum brute force, greedy, math		x8364
1989E	Distance to Different combinatorics, dp, math	2300	x1570
1989D	Smithing Skill brute force, data structures, dp, greedy, math, sortings, two pointers	1900	x5007
1989C	Two Movies greedy, math	1400	x15677
1988F	Heartbeat combinatorics, dp, fft, math	3000	x104
1988A	Split the Multiset brute force, greedy, implementation, math	900	x19589
1987A	Upload More RAM greedy, math	800	x22461
1986G2	Permutation Problem (Hard Version) brute force, data structures, hashing, math, number theory	2500	x868
1986G1	Permutation Problem (Simple Version) binary search, brute force, combinatorics, data structures, math, number theory	2200	x1225
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x7556
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x13490
1986A	X Axis brute force, geometry, math, sortings	800	x36383
1985G	D-Function combinatorics, math, number theory	1600	x7938
1985E	Secret Box brute force, combinatorics, math	1200	x17763
1985D	Manhattan Circle implementation, math	900	x30857
1985B	Maximum Multiple Sum brute force, math, number theory	800	x40517
1984F	Reconstruction brute force, dp, math	2500	x812
1984D	''a'' String Problem brute force, hashing, implementation, math, string suffix structures, strings	2000	x2875
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x6527
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x14671
1984B	Large Addition implementation, math	1100	x16672
1983E	I Love Balls combinatorics, math, probabilities	2300	x1697
1983D	Swap Dilemma constructive algorithms, data structures, divide and conquer, greedy, math, sortings	1700	x7080
1983B	Corner Twist constructive algorithms, greedy, implementation, math	1200	x14454
1983A	Array Divisibility constructive algorithms, math	800	x23476
1982E	Number of k-good subarrays bitmasks, brute force, combinatorics, divide and conquer, dp, math, meet-in-the-middle	2300	x1359
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x6203
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x15201
1982A	Soccer greedy, implementation, math, sortings	800	x22980
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x4614
1981B	Turtle and an Infinite Sequence bitmasks, math	1300	x12379
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x20730
1980F2	Field Division (hard version) math, sortings	2400	x861
1980F1	Field Division (easy version) data structures, math, sortings	1900	x3343
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x9314
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x12933
1980A	Problem Generator math	800	x37488
1978D	Elections data structures, greedy, implementation, math	1600	x9796
1978C	Manhattan Permutations constructive algorithms, data structures, greedy, implementation, math	1300	x13269
1978B	New Bakery binary search, greedy, math, ternary search	800	x20522
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x6036
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x16492
1977A	Little Nikita math	800	x28695
1976E	Splittable Permutations combinatorics, data structures, dfs and similar, greedy, math, trees	2500	x887
1975G	Zimpha Fan Club fft, greedy, math, strings	3000	x204
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x723
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x16353
1974A	Phone Desktop greedy, math	800	x31367
1973E	Cat, Fox and Swaps graphs, math, sortings	2500	x721
1973D	Cat, Fox and Maximum Array Split brute force, interactive, math	2400	x1748
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x7591
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x12900
1973A	Chess For Three brute force, dp, implementation, math	900	x22663
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x8926
1971E	Find the Car binary search, math, sortings	1500	x12739
1969D	Shop Game data structures, greedy, math, sortings	1900	x4084
1969A	Two Friends constructive algorithms, implementation, math	800	x18805
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x1740
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x13844
1968A	Maximize? brute force, math, number theory	800	x31624
1967E2	Again Counting Arrays (Hard Version) combinatorics, dp, math	3500	x89
1967E1	Again Counting Arrays (Easy Version) combinatorics, dp, fft, math	3100	x175
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1530
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x3603
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x12139
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x11371
1965A	Everything Nim games, greedy, math, sortings	1400	x12426
1958B	Clock in the Pool *special problem, math	1400	x771
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1147
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x4154
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x8865
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x774
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1364
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3612
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x12066
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x4117
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6583
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x19891
1955A	Yogurt Sale math	800	x40467
1954F	Unique Strings combinatorics, dp, math	3100	x237
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x2046
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5593
1954C	Long Multiplication greedy, math, number theory	1200	x18114
1954B	Make It Ugly implementation, math	1200	x17395
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x22686

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