Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
13:24:32
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constructive algorithms

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Problems

#	Name
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x196
1940A	Parallel Universes *special problem, constructive algorithms, dfs and similar, dsu, graphs		x83
1939B	Evidence Board *special problem, constructive algorithms, dfs and similar, graphs, trees		x234
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x21
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x7277
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x438
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x8025
1935B	Informatics in MAC constructive algorithms	1200	x18211
1935A	Entertainment in MAC constructive algorithms, strings	800	x27662
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x220
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3435
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6648
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x958
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x19874
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x152
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6934
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x15005
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x14576
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x24990
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x31085
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1680
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x13774
1927B	Following the String constructive algorithms, greedy, strings	900	x32702
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x28470
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x150
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x13709
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6627
1923C	Find B constructive algorithms, greedy	1400	x14802
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7583
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x20363
1922A	Tricky Template constructive algorithms, implementation, strings	800	x26803
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x179
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x840
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3818
1918G	Permutation of Given constructive algorithms, math	2700	x457
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1698
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x23490
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x29967
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x945
1917E	Construct Matrix constructive algorithms, math	2500	x1357
1917A	Least Product constructive algorithms, math	800	x25237
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x450
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8430
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x17650
1916B	Two Divisors constructive algorithms, math, number theory	1000	x25464
1916A	2023 constructive algorithms, implementation, math, number theory	800	x25595
1914B	Preparing for the Contest constructive algorithms, math	800	x30096
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x892
1912C	Cactus Transformation constructive algorithms	3300	x56
1909H	Parallel Swaps Sort constructive algorithms, data structures	3500	x76
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1350
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x11010
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x16617
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1892
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x13920
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x19978
1906L	Palindromic Parentheses constructive algorithms	2500	x495
1906E	Merge Not Sort constructive algorithms, dp	1900	x1501
1906B	Button Pressing bitmasks, constructive algorithms, hashing	2600	x544
1905A	Constructive Problems constructive algorithms, math	800	x22817
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4325
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6586
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x11753
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12634
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13591
1902A	Binary Imbalance constructive algorithms	800	x20910
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x11837
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x27123
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7508
1898C	Colorful Grid constructive algorithms	1700	x5442
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x343
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x711
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9511
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5982
1894B	Two Out of Three constructive algorithms	1000	x15789
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x872
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8762
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x13055
1891A	Sorting with Twos constructive algorithms, sortings	800	x19162
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x17450
1890A	Doremy's Paint 3 constructive algorithms	800	x26165
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7287
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x13022
1887F	Minimum Segments constructive algorithms	3400	x128
1887E	Good Colorings binary search, constructive algorithms, graphs, interactive	3100	x369
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1706
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1430
1886A	Sum of Three brute force, constructive algorithms, math	800	x25732
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x290
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x1005
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15312
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1250
1879B	Chips on the Board constructive algorithms, greedy	900	x22319
1878B	Aleksa and Stack constructive algorithms, math	800	x31296
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x267
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2263
1873G	ABBC or BACB constructive algorithms, greedy	1500	x13085
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18970
1869A	Make It Zero constructive algorithms	900	x21342
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x84