Problemset - Codeforces

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Codeforces Round (Div. 2)
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constructive algorithms

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Problems

#	Name
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x147
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6790
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x14663
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x14202
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x24686
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x30571
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1633
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x13418
1927B	Following the String constructive algorithms, greedy, strings	900	x32093
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x28145
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x142
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x13277
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6422
1923C	Find B constructive algorithms, greedy	1400	x14350
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7422
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x19992
1922A	Tricky Template constructive algorithms, implementation, strings	800	x26571
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x177
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x820
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3730
1918G	Permutation of Given constructive algorithms, math	2700	x443
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1659
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x23117
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x29637
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x938
1917E	Construct Matrix constructive algorithms, math	2500	x1327
1917A	Least Product constructive algorithms, math	800	x24950
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x441
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8293
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x17372
1916B	Two Divisors constructive algorithms, math, number theory	1000	x24939
1916A	2023 constructive algorithms, implementation, math, number theory	800	x25266
1914B	Preparing for the Contest constructive algorithms, math	800	x29615
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x862
1912C	Cactus Transformation constructive algorithms	3300	x54
1909H	Parallel Swaps Sort constructive algorithms, data structures	3500	x75
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1322
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10747
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x15823
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1853
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x13213
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x19484
1906L	Palindromic Parentheses constructive algorithms	2500	x472
1906E	Merge Not Sort constructive algorithms, dp	1900	x1428
1906B	Button Pressing bitmasks, constructive algorithms, hashing	2600	x492
1905A	Constructive Problems constructive algorithms, math	800	x22526
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4156
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6324
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x11351
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12238
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13160
1902A	Binary Imbalance constructive algorithms	800	x20511
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x11518
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x25142
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7228
1898C	Colorful Grid constructive algorithms	1700	x5248
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x335
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x701
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9269
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5840
1894B	Two Out of Three constructive algorithms	1000	x15457
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x856
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8579
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x12531
1891A	Sorting with Twos constructive algorithms, sortings	800	x18965
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x17269
1890A	Doremy's Paint 3 constructive algorithms	800	x24655
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7129
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x12740
1887F	Minimum Segments constructive algorithms	3400	x125
1887E	Good Colorings binary search, constructive algorithms, graphs, interactive	3100	x358
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1673
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1403
1886A	Sum of Three brute force, constructive algorithms, math	800	x25379
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x289
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x993
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15081
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1231
1879B	Chips on the Board constructive algorithms, greedy	900	x21989
1878B	Aleksa and Stack constructive algorithms, math	800	x30958
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x261
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2224
1873G	ABBC or BACB constructive algorithms, greedy	1500	x12715
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18870
1869A	Make It Zero constructive algorithms	900	x20441
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x81
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x263
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2350
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6806
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11728
1867F	Most Different Tree brute force, constructive algorithms, dfs and similar, greedy, hashing	2700	x411
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x3107
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3669
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5618
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x10998
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16475
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x19730
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x257
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6578
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13164