Problemset - Codeforces

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Codeforces Round (Div. 2)
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constructive algorithms

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Problems

#	Name
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x806
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3689
1918G	Permutation of Given constructive algorithms, math	2700	x436
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1632
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x22880
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x29411
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x924
1917E	Construct Matrix constructive algorithms, math	2500	x1312
1917A	Least Product constructive algorithms, math	800	x24755
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x435
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8169
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x17196
1916B	Two Divisors constructive algorithms, math, number theory	1000	x24581
1916A	2023 constructive algorithms, implementation, math, number theory	800	x25077
1914B	Preparing for the Contest constructive algorithms, math	800	x29370
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x829
1912C	Cactus Transformation constructive algorithms	3300	x54
1909H	Parallel Swaps Sort constructive algorithms, data structures	3500	x69
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1300
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10485
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x15245
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1825
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x12863
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x19198
1906L	Palindromic Parentheses constructive algorithms	2500	x445
1906E	Merge Not Sort constructive algorithms, dp	1900	x1387
1906B	Button Pressing bitmasks, constructive algorithms, hashing	2600	x467
1905A	Constructive Problems constructive algorithms, math	800	x22349
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4081
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6168
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x11110
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11996
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12920
1902A	Binary Imbalance constructive algorithms	800	x20279
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x11215
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x24063
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7058
1898C	Colorful Grid constructive algorithms	1700	x5170
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x319
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x676
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9087
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5758
1894B	Two Out of Three constructive algorithms	1000	x15242
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x845
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8373
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x12105
1891A	Sorting with Twos constructive algorithms, sortings	800	x18805
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x17072
1890A	Doremy's Paint 3 constructive algorithms	800	x23726
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7012
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x12532
1887F	Minimum Segments constructive algorithms	3400	x123
1887E	Good Colorings binary search, constructive algorithms, graphs, interactive	3100	x342
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1645
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1381
1886A	Sum of Three brute force, constructive algorithms, math	800	x25168
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x288
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x981
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14904
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1212
1879B	Chips on the Board constructive algorithms, greedy	900	x21795
1878B	Aleksa and Stack constructive algorithms, math	800	x30706
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x261
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2195
1873G	ABBC or BACB constructive algorithms, greedy	1500	x12452
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18782
1869A	Make It Zero constructive algorithms	900	x19952
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x77
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x258
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2337
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6704
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11597
1867F	Most Different Tree brute force, constructive algorithms, dfs and similar, greedy, hashing	2700	x406
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x3076
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3626
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5550
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x10883
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16331
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x19629
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x255
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6521
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13026
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x15037
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20026
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x73
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9210
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x10208
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x16590
1862B	Sequence Game constructive algorithms	800	x30191
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x20781
1861A	Prime Deletion constructive algorithms, math	800	x23534
1860A	Not a Substring constructive algorithms, strings	900	x21258
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x25524
1859A	United We Stand constructive algorithms, math, number theory	800	x30604
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22490
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x389
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6825
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13706
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x162
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x434