Problemset - Codeforces

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Codeforces Round 953 (Div. 2)
42:55:59
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constructive algorithms

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Problems

#	Name
1984G	Magic Trick II constructive algorithms, implementation, sortings	3200	x111
1984A	Strange Splitting constructive algorithms	800	x16250
1981D	Turtle and Multiplication constructive algorithms, dfs and similar, graphs, number theory	2400	x1074
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x3741
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x7775
1980C	Sofia and the Lost Operations constructive algorithms, greedy	1300	x14785
1979F	Kostyanych's Theorem brute force, constructive algorithms, graphs, interactive	2900	x166
1979E	Manhattan Triangle binary search, constructive algorithms, data structures, geometry, implementation, two pointers	2400	x929
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x4834
1979C	Earning on Bets binary search, combinatorics, constructive algorithms, number theory	1200	x14590
1977E	Tensor constructive algorithms, graphs, interactive	2600	x466
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x15015
1974D	Ingenuity-2 constructive algorithms, greedy, implementation	1400	x12234
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x6945
1970D2	Arithmancy (Medium) constructive algorithms, interactive, probabilities, strings	2600	x150
1970D1	Arithmancy (Easy) brute force, constructive algorithms, interactive, strings	2100	x463
1970B3	Exact Neighbours (Hard) constructive algorithms	2300	x359
1970B2	Exact Neighbours (Medium) constructive algorithms	2100	x558
1970B1	Exact Neighbours (Easy) constructive algorithms	1900	x800
1970A3	Balanced Unshuffle (Hard) constructive algorithms, trees	2400	x371
1970A2	Balanced Unshuffle (Medium) brute force, constructive algorithms, trees	2400	x370
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x16260
1969A	Two Friends constructive algorithms, implementation, math	800	x17812
1968E	Cells Arrangement constructive algorithms	1600	x8844
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x21670
1966B	Rectangle Filling constructive algorithms, implementation	1100	x13033
1966A	Card Exchange constructive algorithms, games, greedy	800	x16014
1965E	Connected Cubes constructive algorithms, games	3100	x201
1965D	Missing Subarray Sum constructive algorithms	2900	x306
1965C	Folding Strip constructive algorithms, greedy, strings	2300	x1577
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x5663
1958E	Yet Another Permutation Constructive *special problem, constructive algorithms	1900	x215
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x16136
1957A	Stickogon constructive algorithms, greedy	800	x21304
1956F	Nene and the Passing Game constructive algorithms, data structures, dsu, graphs, sortings	3000	x295
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3438
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x11466
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1095
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x25089
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x21680
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x713
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x69
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x684
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3210
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4971
1951A	Dual Trigger constructive algorithms, greedy, math	900	x17716
1949K	Make Triangle constructive algorithms, math	2800	x258
1949D	Funny or Scary? constructive algorithms	2600	x316
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2714
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x15087
1948A	Special Characters brute force, constructive algorithms	800	x26980
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4224
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x658
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x7300
1944B	Equal XOR bitmasks, constructive algorithms	1100	x14891
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1880
1942B	Bessie and MEX constructive algorithms, math	1100	x12797
1942A	Farmer John's Challenge constructive algorithms, math	800	x16226
1941G	Rudolf and Subway constructive algorithms, dfs and similar, graphs, shortest paths	2000	x3120
1940D	Almost Certainly *special problem, constructive algorithms, data structures, sortings		x125
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x178
1940A	Parallel Universes *special problem, constructive algorithms, dfs and similar, dsu, graphs		x81
1939B	Evidence Board *special problem, constructive algorithms, dfs and similar, graphs, trees		x211
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x20
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6772
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x405
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7384
1935B	Informatics in MAC constructive algorithms	1200	x17026
1935A	Entertainment in MAC constructive algorithms, strings	800	x26195
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x192
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3185
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6202
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x902
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x18417
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x132
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6573
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x14083
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13653
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x24191
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x29675
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1590
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12814
1927B	Following the String constructive algorithms, greedy, strings	900	x31053
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x27615
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x134
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12712
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6111
1923C	Find B constructive algorithms, greedy	1400	x13647
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7215
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x19435
1922A	Tricky Template constructive algorithms, implementation, strings	800	x26173
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x172
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x790
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3645
1918G	Permutation of Given constructive algorithms, math	2700	x431
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1608
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x22533
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x29126
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x913
1917E	Construct Matrix constructive algorithms, math	2500	x1290

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