Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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constructive algorithms

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Problems

#	Name
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x20449
1906L	Palindromic Parentheses constructive algorithms	2500	x578
1906E	Merge Not Sort constructive algorithms, dp	1900	x1636
1906B	Button Pressing bitmasks, constructive algorithms, hashing	2600	x608
1905A	Constructive Problems constructive algorithms, math	800	x23117
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4521
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6897
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x12130
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12973
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13999
1902A	Binary Imbalance constructive algorithms	800	x21300
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x12157
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x29330
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7809
1898C	Colorful Grid constructive algorithms	1700	x5631
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x346
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x735
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9791
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x6144
1894B	Two Out of Three constructive algorithms	1000	x16112
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x931
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x9032
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x13624
1891A	Sorting with Twos constructive algorithms, sortings	800	x19349
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x17623
1890A	Doremy's Paint 3 constructive algorithms	800	x27925
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7483
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x13375
1887F	Minimum Segments constructive algorithms	3400	x176
1887E	Good Colorings binary search, constructive algorithms, graphs, interactive	3100	x386
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1783
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1504
1886A	Sum of Three brute force, constructive algorithms, math	800	x26021
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x299
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x1040
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15619
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1279
1879B	Chips on the Board constructive algorithms, greedy	900	x22781
1878B	Aleksa and Stack constructive algorithms, math	800	x31670
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x272
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2337
1873G	ABBC or BACB constructive algorithms, greedy	1500	x13613
1870A	MEXanized Array constructive algorithms, greedy, math	800	x19139
1869A	Make It Zero constructive algorithms	900	x22425
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x86
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x290
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2437
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x7097
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x12140
1867F	Most Different Tree brute force, constructive algorithms, dfs and similar, greedy, hashing	2700	x425
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x3230
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3807
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5880
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x11384
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16882
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x20060
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x280
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6855
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13657
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x15466
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20410
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x84
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9603
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x10896
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x17432
1862B	Sequence Game constructive algorithms	800	x33108
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x21593
1861A	Prime Deletion constructive algorithms, math	800	x24030
1860A	Not a Substring constructive algorithms, strings	900	x21855
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x27953
1859A	United We Stand constructive algorithms, math, number theory	800	x33562
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x23295
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x433
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x7078
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x14292
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x170
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x487
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4552
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29669
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8685
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3165
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x19685
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19318
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28356
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x827
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x405
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x791
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1901
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12412
1844B	Permutations & Primes constructive algorithms, math	1000	x18347
1844A	Subtraction Game constructive algorithms, games	800	x24676
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4133
1841A	Game with Board constructive algorithms, games	800	x24798
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x995
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2417
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1241
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x12104
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x320
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x14714
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x16534