Problemset - Codeforces

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constructive algorithms

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Problems

#	Name
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x19172
1969A	Two Friends constructive algorithms, implementation, math	800	x20005
1968E	Cells Arrangement constructive algorithms	1600	x10483
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x25149
1966B	Rectangle Filling constructive algorithms, implementation	1100	x15043
1966A	Card Exchange constructive algorithms, games, greedy	800	x17930
1965E	Connected Cubes constructive algorithms, games	3100	x305
1965D	Missing Subarray Sum constructive algorithms	2900	x432
1965C	Folding Strip constructive algorithms, greedy, strings	2300	x1951
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6770
1958E	Yet Another Permutation Constructive *special problem, constructive algorithms	1900	x257
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x18014
1957A	Stickogon constructive algorithms, greedy	800	x23394
1956F	Nene and the Passing Game constructive algorithms, data structures, dsu, graphs, sortings	3000	x366
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3953
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x12979
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1266
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x28098
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x24280
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x775
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x76
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x769
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3666
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x5443
1951A	Dual Trigger constructive algorithms, greedy, math	900	x19830
1949K	Make Triangle constructive algorithms, math	2800	x331
1949D	Funny or Scary? constructive algorithms	2600	x415
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x3014
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x17023
1948A	Special Characters brute force, constructive algorithms	800	x28646
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4770
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x749
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x8262
1944B	Equal XOR bitmasks, constructive algorithms	1100	x16292
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x2133
1942B	Bessie and MEX constructive algorithms, math	1100	x14037
1942A	Farmer John's Challenge constructive algorithms, math	800	x17319
1941G	Rudolf and Subway constructive algorithms, dfs and similar, graphs, shortest paths	2000	x3586
1940D	Almost Certainly *special problem, constructive algorithms, data structures, sortings		x144
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x207
1940A	Parallel Universes *special problem, constructive algorithms, dfs and similar, dsu, graphs		x84
1939B	Evidence Board *special problem, constructive algorithms, dfs and similar, graphs, trees		x247
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x24
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x7526
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x454
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x8264
1935B	Informatics in MAC constructive algorithms	1200	x18691
1935A	Entertainment in MAC constructive algorithms, strings	800	x28066
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x241
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3557
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6864
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x987
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x20459
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x181
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x7175
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x15443
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x15096
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x25424
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x31755
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1742
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x14201
1927B	Following the String constructive algorithms, greedy, strings	900	x33521
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x29013
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x156
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x14120
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6901
1923C	Find B constructive algorithms, greedy	1400	x15322
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7810
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x20836
1922A	Tricky Template constructive algorithms, implementation, strings	800	x27099
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x183
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x886
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3922
1918G	Permutation of Given constructive algorithms, math	2700	x475
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1754
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x24049
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x30402
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x979
1917E	Construct Matrix constructive algorithms, math	2500	x1408
1917A	Least Product constructive algorithms, math	800	x25638
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x499
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8598
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x18006
1916B	Two Divisors constructive algorithms, math, number theory	1000	x26195
1916A	2023 constructive algorithms, implementation, math, number theory	800	x26161
1914B	Preparing for the Contest constructive algorithms, math	800	x30565
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x951
1912C	Cactus Transformation constructive algorithms	3300	x56
1909H	Parallel Swaps Sort constructive algorithms, data structures	3500	x80
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1414
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x11341
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x17461
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1977
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x14589
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x20440
1906L	Palindromic Parentheses constructive algorithms	2500	x575
1906E	Merge Not Sort constructive algorithms, dp	1900	x1628
1906B	Button Pressing bitmasks, constructive algorithms, hashing	2600	x605
1905A	Constructive Problems constructive algorithms, math	800	x23091
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4511