Problemset - Codeforces

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Codeforces Round 943 (Div. 3)
23:59:00
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Problems

#	Name
1969A	Two Friends graphs, implementation, math		x13542
1967D	Long Way to be Non-decreasing binary search, dfs and similar, implementation, two pointers		x220
1967A	Permutation Counting binary search, implementation, math, sortings		x6509
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation		x13943
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x616
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1141
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x2980
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3196
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x6787
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x16928
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x22847
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1646
1954B	Make It Ugly implementation, math	1200	x14741
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x677
1952H	Palindrome implementation, strings		x344
1952D	Are You a Procrastinator? implementation		x4085
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2919
1950G	Shuffling Songs bitmasks, dfs and similar, dp, graphs, hashing, implementation, strings	1900	x3334
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7301
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x11508
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x19710
1950C	Clock Conversion implementation, math	800	x34099
1950B	Upscaling implementation	800	x32507
1950A	Stair, Peak, or Neither? implementation	800	x42474
1949J	Amanda the Amoeba graphs, implementation, trees, two pointers		x305
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2558
1948B	Array Fix brute force, dp, greedy, implementation	1100	x20218
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x3930
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x8904
1946A	Median of an Array greedy, implementation, sortings	800	x23218
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x610
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3177
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x543
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2374
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x16386
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x173
1937B	Binary Path dp, greedy, implementation	1300	x12940
1937A	Shuffle Party implementation, math	800	x21301
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1062
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2386
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x386
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7255
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x9584
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20290
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x29666
1932E	Final Countdown implementation, math, number theory	1600	x6689
1932D	Card Game greedy, implementation	1400	x9776
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13494
1932A	Thorns and Coins dp, greedy, implementation	800	x26428
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2343
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x208
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3740
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x2899
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1456
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9849
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x22794
1926B	Vlad and Shapes geometry, implementation	800	x29473
1926A	Vlad and the Best of Five implementation	800	x41488
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2262
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x324
1923B	Monsters Attack! dp, greedy, implementation	1100	x16052
1923A	Moving Chips greedy, implementation	800	x23132
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5182
1922C	Closest Cities greedy, implementation, math	1300	x16766
1922A	Tricky Template constructive algorithms, implementation, strings	800	x25808
1921G	Mischievous Shooter brute force, data structures, divide and conquer, dp, implementation	2200	x1111
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3414
1921B	Arranging Cats greedy, implementation	800	x31856
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5069
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x767
1918F	Caterpillar on a Tree dfs and similar, graphs, greedy, implementation, sortings, trees	2500	x764
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	x4218
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12453
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x21983
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x28641
1917D	Yet Another Inversions Problem combinatorics, data structures, dp, implementation, math, number theory	2300	x1648
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9342
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x16595
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24462
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x5390
1915D	Unnatural Language Processing greedy, implementation, strings	900	x27469
1915C	Can I Square? binary search, implementation	800	x37240
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x38231
1915A	Odd One Out bitmasks, implementation	800	x49236
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x18007
1914A	Problemsolving Log implementation, strings	800	x29535
1913A	Rating Increase implementation	800	x22225
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x768
1912A	Accumulator Apex data structures, implementation, sortings	1900	x1857
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x568
1910A	Username *special problem, implementation	1100	x1542
1909A	Distinct Buttons implementation, math	800	x15678
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1733
1907B	YetnotherrokenKeoard data structures, implementation, strings	1000	x23074
1907A	Rook implementation	800	x33835
1905D	Cyclic MEX data structures, implementation, math, two pointers	2000	x3467
1904F	Beautiful Tree data structures, dfs and similar, graphs, implementation, trees	2800	x307
1904E	Tree Queries data structures, dfs and similar, graphs, implementation, trees	2500	x805
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x3772

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