Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
12:57:14
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constructive algorithms

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Problems

#	Name
1966B	Rectangle Filling constructive algorithms		x8961
1966A	Card Exchange constructive algorithms, greedy		x11798
1965E	Connected Cubes constructive algorithms		x107
1965D	Missing Subarray Sum constructive algorithms		x155
1965B	Missing Subsequence Sum constructive algorithms, greedy, number theory		x3620
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation		x13760
1957A	Stickogon constructive algorithms, greedy		x18345
1956F	Nene and the Passing Game constructive algorithms, data structures, dsu, graphs, sortings	3000	x235
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x2923
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x9915
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x928
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x22535
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x19326
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x676
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x39
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x625
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2888
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4537
1951A	Dual Trigger constructive algorithms, greedy, math	900	x15806
1949K	Make Triangle constructive algorithms, math		x223
1949D	Funny or Scary? constructive algorithms		x296
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2546
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x14098
1948A	Special Characters brute force, constructive algorithms	800	x25907
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x3908
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x608
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x6764
1944B	Equal XOR bitmasks, constructive algorithms	1100	x13967
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1735
1942B	Bessie and MEX constructive algorithms, math	1100	x12032
1942A	Farmer John's Challenge constructive algorithms, math	800	x15343
1941G	Rudolf and Subway constructive algorithms, dfs and similar, graphs, shortest paths	2000	x2874
1940D	Almost Certainly *special problem, constructive algorithms, data structures, sortings		x123
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x171
1940A	Parallel Universes *special problem, constructive algorithms, dfs and similar, dsu, graphs		x78
1939B	Evidence Board *special problem, constructive algorithms, dfs and similar, graphs, trees		x208
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x14
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6477
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x384
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7042
1935B	Informatics in MAC constructive algorithms	1200	x16249
1935A	Entertainment in MAC constructive algorithms, strings	800	x25241
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x179
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3022
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x5967
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x852
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17521
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x118
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6334
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13440
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13098
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23637
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x28693
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1511
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12257
1927B	Following the String constructive algorithms, greedy, strings	900	x30113
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x27038
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x123
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12215
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5802
1923C	Find B constructive algorithms, greedy	1400	x12956
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x6980
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x18894
1922A	Tricky Template constructive algorithms, implementation, strings	800	x25773
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x169
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x763
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3578
1918G	Permutation of Given constructive algorithms, math	2700	x417
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1535
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x21961
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x28620
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x889
1917E	Construct Matrix constructive algorithms, math	2500	x1260
1917A	Least Product constructive algorithms, math	800	x24096
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x403
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x7843
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x16581
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23489
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24449
1914B	Preparing for the Contest constructive algorithms, math	800	x28414
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x767
1912C	Cactus Transformation constructive algorithms	3300	x45
1909H	Parallel Swaps Sort constructive algorithms, data structures	3500	x58
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1240
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x9886
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13711
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1732
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x11854
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x18256
1906L	Palindromic Parentheses constructive algorithms	2500	x430
1906E	Merge Not Sort constructive algorithms, dp	1900	x1285
1906B	Button Pressing bitmasks, constructive algorithms, hashing	2600	x453
1905A	Constructive Problems constructive algorithms, math	800	x21720
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x3765
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x5616
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x10290
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11252
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12158
1902A	Binary Imbalance constructive algorithms	800	x19683
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x10611

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