Problemset - Codeforces

→ Pay attention

Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
44:11:13
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

constructive algorithms

Add tag

Problems

#	Name
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6886
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x12113
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12954
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13982
1902A	Binary Imbalance constructive algorithms	800	x21291
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x12146
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x29216
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7796
1898C	Colorful Grid constructive algorithms	1700	x5625
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x346
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x732
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9770
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x6138
1894B	Two Out of Three constructive algorithms	1000	x16087
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x931
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x9024
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x13598
1891A	Sorting with Twos constructive algorithms, sortings	800	x19341
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x17613
1890A	Doremy's Paint 3 constructive algorithms	800	x27844
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7477
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x13365
1887F	Minimum Segments constructive algorithms	3400	x175
1887E	Good Colorings binary search, constructive algorithms, graphs, interactive	3100	x385
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1777
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1503
1886A	Sum of Three brute force, constructive algorithms, math	800	x26011
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x299
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x1037
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15604
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1277
1879B	Chips on the Board constructive algorithms, greedy	900	x22767
1878B	Aleksa and Stack constructive algorithms, math	800	x31646
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x272
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2323
1873G	ABBC or BACB constructive algorithms, greedy	1500	x13584
1870A	MEXanized Array constructive algorithms, greedy, math	800	x19130
1869A	Make It Zero constructive algorithms	900	x22382
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	x2432
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x7093
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x12135
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	x3223
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3802
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5868
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x11375
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16871
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x20050
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x280
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6848
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13641
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x15460
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20400
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x84
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9595
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x10888
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x17422
1862B	Sequence Game constructive algorithms	800	x33055
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x21582
1861A	Prime Deletion constructive algorithms, math	800	x24022
1860A	Not a Substring constructive algorithms, strings	900	x21837
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x27908
1859A	United We Stand constructive algorithms, math, number theory	800	x33500
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x23282
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x432
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x7074
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x14282
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x169
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x486
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4543
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29657
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8680
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3162
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x19649
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19308
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28309
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x741
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x404
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x790
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1900
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12404
1844B	Permutations & Primes constructive algorithms, math	1000	x18333
1844A	Subtraction Game constructive algorithms, games	800	x24664
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4127
1841A	Game with Board constructive algorithms, games	800	x24787
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	x2415
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1240
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x12096
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x320
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x14704
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x16526
1838A	Blackboard List constructive algorithms, math	800	x21621
1837D	Bracket Coloring constructive algorithms, greedy	1400	x15136
1837C	Best Binary String constructive algorithms, greedy	1000	x22222
1837A	Grasshopper on a Line constructive algorithms, math	800	x33431
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x1010
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5463