Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings		x75
1994E	Wooden Game bitmasks, greedy, math, sortings, trees		x2705
1994D	Funny Game constructive algorithms, dsu, graphs, greedy, math, number theory, trees		x3603
1994B	Fun Game bitmasks, constructive algorithms, greedy, math		x12783
1994A	Diverse Game constructive algorithms, greedy		x16295
1992F	Valuable Cards brute force, dp, greedy, number theory, two pointers	1900	x4318
1992D	Test of Love dp, greedy, implementation	1200	x16456
1992B	Angry Monk greedy, math, sortings	800	x28343
1992A	Only Pluses brute force, constructive algorithms, greedy, math, sortings	800	x33264
1990D	Grid Puzzle bitmasks, dp, greedy, math		x3036
1990C	Mad MAD Sum brute force, greedy, math		x6013
1990B	Array Craft constructive algorithms, greedy		x10389
1990A	Submission Bait brute force, games, greedy, sortings		x14510
1989D	Smithing Skill brute force, data structures, dp, greedy, math, sortings, two pointers	1900	x4830
1989C	Two Movies greedy, math	1400	x15155
1989B	Substring and Subsequence brute force, greedy, strings	1200	x17118
1988C	Increasing Sequence with Fixed OR bitmasks, constructive algorithms, greedy	1300	x13057
1988B	Make Majority greedy, implementation	900	x18212
1988A	Split the Multiset brute force, greedy, implementation, math	900	x18755
1987E	Wonderful Tree! brute force, data structures, dfs and similar, dsu, greedy, trees	2000	x2698
1987C	Basil's Garden dp, greedy	1200	x14771
1987B	K-Sort greedy	1000	x17472
1987A	Upload More RAM greedy, math	800	x22018
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x7332
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x13191
1986C	Update Queries data structures, greedy, sortings	1100	x20583
1986B	Matrix Stabilization brute force, data structures, greedy, sortings	1000	x23901
1985C	Good Prefixes greedy	1000	x28095
1984E	Shuffle dp, greedy, trees	2400	x1218
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x6450
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x14442
1983F	array-value binary search, bitmasks, data structures, greedy, two pointers	2500	x930
1983D	Swap Dilemma constructive algorithms, data structures, divide and conquer, greedy, math, sortings	1700	x6890
1983C	Have Your Cake and Eat It Too binary search, brute force, greedy, implementation	1400	x10638
1983B	Corner Twist constructive algorithms, greedy, implementation, math	1200	x14168
1982C	Boring Day binary search, data structures, dp, greedy, two pointers	1200	x15014
1982A	Soccer greedy, implementation, math, sortings	800	x22727
1981E	Turtle and Intersected Segments data structures, dsu, graphs, greedy	2600	x699
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x4546
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x20564
1980G	Yasya and the Mysterious Tree bitmasks, data structures, dfs and similar, graphs, greedy, strings, trees	2300	x1013
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x9170
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x12763
1980C	Sofia and the Lost Operations constructive algorithms, greedy	1300	x16884
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x5819
1979B	XOR Sequences bitmasks, greedy	1000	x20807
1979A	Guess the Maximum brute force, greedy, implementation	800	x27114
1978E	Computing Machine brute force, data structures, dp, greedy, implementation	2000	x3200
1978D	Elections data structures, greedy, implementation, math	1600	x9634
1978C	Manhattan Permutations constructive algorithms, data structures, greedy, implementation, math	1300	x13079
1978B	New Bakery binary search, greedy, math, ternary search	800	x20311
1978A	Alice and Books constructive algorithms, greedy, sortings	800	x23217
1977D	XORificator bitmasks, brute force, greedy, hashing	2300	x1603
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x5972
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x16353
1976F	Remove Bridges data structures, dfs and similar, dp, greedy, sortings, trees	2800	x469
1976E	Splittable Permutations combinatorics, data structures, dfs and similar, greedy, math, trees	2500	x869
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x9165
1976B	Increase/Decrease/Copy greedy, implementation	1100	x20427
1975H	378QAQ and Core greedy, strings	3500	x88
1975G	Zimpha Fan Club fft, greedy, math, strings	3000	x200
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x5279
1975C	Chamo and Mocha's Array binary search, brute force, greedy	1200	x13131
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x16203
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x17558
1974G	Money Buys Less Happiness Now data structures, greedy, sortings	2000	x3757
1974D	Ingenuity-2 constructive algorithms, greedy, implementation	1400	x13386
1974A	Phone Desktop greedy, math	800	x31169
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x7532
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x12805
1972A	Contest Proposal brute force, greedy, two pointers	800	x21531
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x23639
1969F	Card Pairing dp, greedy, hashing, implementation	3000	x213
1969E	Unique Array binary search, data structures, divide and conquer, dp, greedy	2400	x1190
1969D	Shop Game data structures, greedy, math, sortings	1900	x4057
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x17330
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x13721
1968B	Prefiquence greedy, two pointers	800	x26284
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x11284
1966A	Card Exchange constructive algorithms, games, greedy	800	x16768
1965C	Folding Strip constructive algorithms, greedy, strings	2300	x1686
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6025
1965A	Everything Nim games, greedy, math, sortings	1400	x12315
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x16882
1957A	Stickogon constructive algorithms, greedy	800	x22083
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x770
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3592
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x12016
1956B	Nene and the Card Game games, greedy	800	x20420
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x20628
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6547
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x7969
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x19777
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x2025
1954C	Long Multiplication greedy, math, number theory	1200	x18008
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x22571
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x70
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x234
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x719
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3346

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