Problemset - Codeforces

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Problems

#	Name
1969F	Card Pairing dp, greedy, implementation		x70
1969C	Minimizing the Sum dp, implementation		x4902
1969A	Two Friends constructive algorithms, implementation, math		x13970
1967D	Long Way to be Non-decreasing binary search, dfs and similar, graphs, implementation, two pointers		x291
1967A	Permutation Counting implementation, math, sortings		x7259
1966B	Rectangle Filling constructive algorithms, implementation	1100	x9891
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x14050
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x618
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1151
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3013
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3253
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x6864
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x17142
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x23120
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1672
1954B	Make It Ugly implementation, math	1200	x14836
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x681
1952H	Palindrome implementation, strings		x347
1952D	Are You a Procrastinator? implementation		x4106
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2928
1950G	Shuffling Songs bitmasks, dfs and similar, dp, graphs, hashing, implementation, strings	1900	x3362
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7351
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x11577
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x19797
1950C	Clock Conversion implementation, math	800	x34224
1950B	Upscaling implementation	800	x32632
1950A	Stair, Peak, or Neither? implementation	800	x42705
1949J	Amanda the Amoeba graphs, implementation, trees, two pointers	2600	x306
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2573
1948B	Array Fix brute force, dp, greedy, implementation	1100	x20255
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x3944
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x8928
1946A	Median of an Array greedy, implementation, sortings	800	x23264
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x615
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3186
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x547
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2381
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x16423
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x173
1937B	Binary Path dp, greedy, implementation	1300	x12958
1937A	Shuffle Party implementation, math	800	x21321
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1065
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2395
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x389
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7259
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x9614
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20335
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x29719
1932E	Final Countdown implementation, math, number theory	1600	x6714
1932D	Card Game greedy, implementation	1400	x9805
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13532
1932A	Thorns and Coins dp, greedy, implementation	800	x26475
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2348
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x208
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3750
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x2904
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1459
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9872
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x22833
1926B	Vlad and Shapes geometry, implementation	800	x29508
1926A	Vlad and the Best of Five implementation	800	x41566
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2266
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x325
1923B	Monsters Attack! dp, greedy, implementation	1100	x16069
1923A	Moving Chips greedy, implementation	800	x23155
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5193
1922C	Closest Cities greedy, implementation, math	1300	x16780
1922A	Tricky Template constructive algorithms, implementation, strings	800	x25820
1921G	Mischievous Shooter brute force, data structures, divide and conquer, dp, implementation	2200	x1113
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3419
1921B	Arranging Cats greedy, implementation	800	x31888
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5072
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x770
1918F	Caterpillar on a Tree dfs and similar, graphs, greedy, implementation, sortings, trees	2500	x765
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1536
1918D	Blocking Elements binary search, data structures, dp, implementation, two pointers	1900	x4223
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12459
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x22000
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x28658
1917D	Yet Another Inversions Problem combinatorics, data structures, dp, implementation, math, number theory	2300	x1651
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9347
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x16601
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24470
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x5396
1915D	Unnatural Language Processing greedy, implementation, strings	900	x27495
1915C	Can I Square? binary search, implementation	800	x37284
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x38281
1915A	Odd One Out bitmasks, implementation	800	x49316
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x18032
1914A	Problemsolving Log implementation, strings	800	x29572
1913A	Rating Increase implementation	800	x22238
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x769
1912A	Accumulator Apex data structures, implementation, sortings	1900	x1862
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x569
1910A	Username *special problem, implementation	1100	x1545
1909A	Distinct Buttons implementation, math	800	x15685
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1738
1907B	YetnotherrokenKeoard data structures, implementation, strings	1000	x23103
1907A	Rook implementation	800	x33896
1905D	Cyclic MEX data structures, implementation, math, two pointers	2000	x3471

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