Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 940 (Div. 2) and CodeCraft-23
42:17:56
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

implementation

Add tag

Problems

#	Name
1900F	Local Deletions binary search, data structures, implementation	2800	x252
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x1767
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x21328
1899E	Queue Sort greedy, implementation, sortings	1300	x13728
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x17831
1898A	Milica and String brute force, implementation, strings	800	x14932
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x253
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x638
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x9986
1894A	Secret Sport implementation, strings	800	x17939
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2400
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x11131
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x767
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x16545
1889D	Game of Stacks brute force, dfs and similar, graphs, implementation, trees	3000	x505
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x11882
1886C	Decreasing String implementation, strings	1600	x10081
1884E	Hard Design greedy, implementation, math	2800	x256
1881C	Perfect Square brute force, implementation	1200	x15701
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1174
1878G	wxhtzdy ORO Tree binary search, bitmasks, brute force, data structures, dfs and similar, implementation, trees	2300	x1081
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x15654
1873D	1D Eraser greedy, implementation, two pointers	800	x32265
1873C	Target Practice implementation, math	800	x34647
1873A	Short Sort brute force, implementation	800	x48017
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5721
1872B	The Corridor or There and Back Again greedy, implementation	900	x26408
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6352
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10657
1868F	LIS? data structures, greedy, implementation	3500	x67
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x243
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1060
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2254
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6379
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11080
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5281
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x402
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x250
1864F	Exotic Queries data structures, implementation, sortings	2300	x1306
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19711
1863C	MEX Repetition implementation, math	1100	x13282
1863A	Channel greedy, implementation	800	x17367
1862C	Flower City Fence binary search, data structures, implementation, sortings	1100	x19500
1862A	Gift Carpet dp, greedy, implementation, strings	800	x30491
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1596
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9377
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x262
1857B	Maximum Rounding greedy, implementation, math	1100	x21957
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1298
1856B	Good Arrays implementation, math	900	x22942
1856A	Tales of a Sort implementation	800	x25685
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2888
1851D	Prefix Permutation Sums implementation, math	1300	x14248
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x7420
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11095
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x16929
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x20552
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x31820
1850C	Word on the Paper implementation, strings	800	x40468
1850B	Ten Words of Wisdom implementation, sortings	800	x39943
1850A	To My Critics implementation, sortings	800	x50320
1849A	Morning Sandwich implementation, math	800	x26877
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x735
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13226
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x311
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3570
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2846
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6530
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15202
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x25917
1846A	Rudolph and Cut the Rope implementation, math	800	x31203
1845E	Boxes and Balls dp, implementation, math	2500	x1253
1845B	Come Together geometry, implementation, math	900	x20774
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24307
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x632
1844C	Particles dp, greedy, implementation, math	1300	x14728
1841B	Keep it Beautiful implementation	1000	x20392
1840E	Character Blocking data structures, hashing, implementation	1600	x7463
1840A	Cipher Shifer implementation, strings, two pointers	800	x32374
1839A	The Good Array greedy, implementation, math	800	x17054
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2047
1836A	Destroyer implementation, sortings	800	x19728
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x134
1835A	k-th equality brute force, implementation, math	1700	x7382
1834E	MEX of LCM binary search, data structures, implementation, math, number theory	2300	x2026
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4317
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4875
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6601
1833A	Musical Puzzle implementation, strings	800	x31417
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1779
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2776
1832C	Contrast Value greedy, implementation	1200	x18031
1829G	Hits Different data structures, dp, implementation, math	1600	x9272
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x18022
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x23982
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x26913
1829B	Blank Space implementation	800	x40213
1829A	Love Story implementation, strings	800	x45227
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1488
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x14437