Problemset - Codeforces

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Codeforces Round (Div. 2)
7 days

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Problems

#	Name
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x757
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1557
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x6043
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x11081
1895B	Points and Minimum Distance greedy, math, sortings	800	x20439
1895A	Treasure Chest math	800	x24370
1894B	Two Out of Three constructive algorithms	1000	x15886
1894A	Secret Sport implementation, strings	800	x18917
1893E	Cacti Symphony combinatorics, dfs and similar, dp, graphs	3500	x194
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x897
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2681
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8872
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x12342
1891F	A Growing Tree data structures, dfs and similar, trees	2000	x3751
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x827
1891D	Suspicious logarithms binary search, brute force, math	1900	x3970
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x13234
1891B	Deja Vu brute force, math, sortings	1100	x17965
1891A	Sorting with Twos constructive algorithms, sortings	800	x19220
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x17506
1890A	Doremy's Paint 3 constructive algorithms	800	x26626
1889F	Doremy's Average Tree data structures, dp, greedy, trees	3500	x79
1889E	Doremy's Swapping Trees dfs and similar, graphs, trees	3500	x110
1889D	Game of Stacks brute force, dfs and similar, graphs, implementation, trees	3000	x590
1889C2	Doremy's Drying Plan (Hard Version) data structures, dp	2600	x978
1889C1	Doremy's Drying Plan (Easy Version) brute force, data structures, dp, greedy, sortings	2000	x3262
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7348
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x13127
1887F	Minimum Segments constructive algorithms	3400	x129
1887E	Good Colorings binary search, constructive algorithms, graphs, interactive	3100	x374
1887D	Split binary search, data structures, divide and conquer, dsu, math, trees, two pointers	2700	x875
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1720
1887B	Time Travel binary search, graphs, shortest paths	1900	x2969
1886F	Diamond Theft data structures, greedy	3300	x190
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1459
1886D	Monocarp and the Set combinatorics, data structures, math	2100	x3573
1886C	Decreasing String implementation, strings	1600	x11484
1886B	Fear of the Dark binary search, geometry, math	1200	x16139
1886A	Sum of Three brute force, constructive algorithms, math	800	x25803
1885A	Deterministic Scheduling for Extended Reality over 5G and Beyond *special problem
1884E	Hard Design greedy, implementation, math	2800	x317
1884D	Counting Rhyme dp, math, number theory	2100	x3205
1884C	Medium Design brute force, data structures, dp, greedy, sortings	1700	x6058
1884B	Haunted House binary search, greedy, math, two pointers	1100	x12668
1884A	Simple Design brute force, greedy, math	800	x17428
1883G2	Dances (Hard Version) binary search, greedy, sortings, two pointers	1900	x5387
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x10954
1883F	You Are So Beautiful data structures	1400	x9476
1883E	Look Back bitmasks, greedy	1700	x8084
1883D	In Love data structures, greedy	1500	x11465
1883C	Raspberries dp, math	1000	x27385
1883B	Chemistry strings	900	x32064
1883A	Morning math	800	x25625
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x291
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x1018
1882D	Tree XOR bitmasks, dfs and similar, dp, greedy, trees	1900	x5454
1882C	Card Game brute force, greedy	1500	x12308
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15394
1882A	Increasing Sequence greedy	800	x25314
1881G	Anya and the Mysterious String binary search, data structures	2000	x2367
1881F	Minimum Maximum Distance dfs and similar, dp, graphs, shortest paths, trees	1700	x6906
1881E	Block Sequence dp	1500	x14089
1881D	Divide and Equalize math, number theory	1300	x17142
1881C	Perfect Square brute force, implementation	1200	x17060
1881B	Three Threadlets math	900	x25370
1881A	Don't Try to Count brute force, strings	800	x31857
1879F	Last Man Standing brute force, data structures, number theory	2800	x510
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1264
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x7381
1879C	Make it Alternating combinatorics, dp, greedy	1300	x16944
1879B	Chips on the Board constructive algorithms, greedy	900	x22428
1879A	Rigged! greedy	800	x23125
1878G	wxhtzdy ORO Tree binary search, bitmasks, brute force, data structures, dfs and similar, implementation, trees	2300	x1183
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x4108
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x12785
1878D	Reverse Madness data structures, greedy	1600	x8317
1878C	Vasilije in Cacak math	900	x32895
1878B	Aleksa and Stack constructive algorithms, math	800	x31386
1878A	How Much Does Daytona Cost? greedy	800	x44312
1877C	Joyboard math, number theory	1200	x10970
1877A	Goals of Victory math	800	x23346
1876G	Clubstep binary search, brute force, data structures, greedy, trees	3500	x126
1876F	Indefinite Clownfish binary search, graphs	3500	x133
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x267
1876D	Lexichromatography combinatorics, dfs and similar, dsu, graphs, two pointers	2500	x876
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2286
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x8272
1876A	Helmets in Night Light greedy, sortings	1000	x17785
1875D	Jellyfish and Mex dp	1600	x8653
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11719
1875A	Jellyfish and Undertale brute force, greedy	900	x25435
1874G	Jellyfish and Inscryption dp	3500	x85
1874F	Jellyfish and OEIS dp	3500	x207
1874E	Jellyfish and Hack dp, math	3000	x314
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x725
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1703
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1143
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x17034
1873H	Mad City dfs and similar, dsu, games, graphs, shortest paths, trees	1700	x7364
1873G	ABBC or BACB constructive algorithms, greedy	1500	x13237