Problemset - Codeforces

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constructive algorithms

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Problems

#	Name
1974D	Ingenuity-2 constructive algorithms, implementation		x7612
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings		x5488
1970D2	Arithmancy (Medium) constructive algorithms, interactive, probabilities, strings	2600	x129
1970D1	Arithmancy (Easy) brute force, constructive algorithms, interactive, strings	2100	x410
1970B3	Exact Neighbours (Hard) constructive algorithms	2300	x316
1970B2	Exact Neighbours (Medium) constructive algorithms	2100	x489
1970B1	Exact Neighbours (Easy) constructive algorithms	1900	x673
1970A3	Balanced Unshuffle (Hard) constructive algorithms, trees	2400	x332
1970A2	Balanced Unshuffle (Medium) brute force, constructive algorithms, trees	2400	x340
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x14626
1969A	Two Friends constructive algorithms, implementation, math	800	x16202
1968E	Cells Arrangement constructive algorithms	1600	x8014
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x19908
1966B	Rectangle Filling constructive algorithms, implementation	1100	x11910
1966A	Card Exchange constructive algorithms, games, greedy	800	x14888
1965E	Connected Cubes constructive algorithms, games	3100	x178
1965D	Missing Subarray Sum constructive algorithms	2900	x274
1965C	Folding Strip constructive algorithms, greedy, strings	2300	x1455
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x5189
1958E	Yet Another Permutation Constructive *special problem, constructive algorithms	1900	x196
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x15293
1957A	Stickogon constructive algorithms, greedy	800	x20303
1956F	Nene and the Passing Game constructive algorithms, data structures, dsu, graphs, sortings	3000	x266
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3292
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x10882
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1044
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x24193
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x20780
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x697
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x45
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x654
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3060
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4747
1951A	Dual Trigger constructive algorithms, greedy, math	900	x16684
1949K	Make Triangle constructive algorithms, math	2800	x242
1949D	Funny or Scary? constructive algorithms	2600	x311
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2648
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x14611
1948A	Special Characters brute force, constructive algorithms	800	x26444
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4087
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x634
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x7041
1944B	Equal XOR bitmasks, constructive algorithms	1100	x14421
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1824
1942B	Bessie and MEX constructive algorithms, math	1100	x12378
1942A	Farmer John's Challenge constructive algorithms, math	800	x15688
1941G	Rudolf and Subway constructive algorithms, dfs and similar, graphs, shortest paths	2000	x3009
1940D	Almost Certainly *special problem, constructive algorithms, data structures, sortings		x124
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x175
1940A	Parallel Universes *special problem, constructive algorithms, dfs and similar, dsu, graphs		x80
1939B	Evidence Board *special problem, constructive algorithms, dfs and similar, graphs, trees		x209
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x16
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6623
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x398
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7206
1935B	Informatics in MAC constructive algorithms	1200	x16608
1935A	Entertainment in MAC constructive algorithms, strings	800	x25632
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x184
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3101
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6095
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x878
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17992
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x124
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6449
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13735
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13373
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23888
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x29076
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1560
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12528
1927B	Following the String constructive algorithms, greedy, strings	900	x30593
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x27249
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x129
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12449
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5969
1923C	Find B constructive algorithms, greedy	1400	x13292
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7085
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x19127
1922A	Tricky Template constructive algorithms, implementation, strings	800	x25929
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x170
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x778
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3610
1918G	Permutation of Given constructive algorithms, math	2700	x427
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1566
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x22230
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x28847
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x901
1917E	Construct Matrix constructive algorithms, math	2500	x1274
1917A	Least Product constructive algorithms, math	800	x24276
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x410
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x7922
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x16774
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23788
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24619
1914B	Preparing for the Contest constructive algorithms, math	800	x28682
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x781
1912C	Cactus Transformation constructive algorithms	3300	x45
1909H	Parallel Swaps Sort constructive algorithms, data structures	3500	x61
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1261
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10036

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