Problemset - Codeforces

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Codeforces Round (Div. 3)
6 days

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Problems

#	Name
1884E	Hard Design greedy, implementation, math	2800	x268
1884D	Counting Rhyme dp, math, number theory	2100	x2935
1884C	Medium Design brute force, data structures, dp, greedy, sortings	1700	x5626
1884B	Haunted House binary search, greedy, math, two pointers	1100	x11966
1884A	Simple Design brute force, greedy, math	800	x16714
1883G2	Dances (Hard Version) binary search, greedy, sortings, two pointers	1900	x4995
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x9619
1883F	You Are So Beautiful data structures	1400	x8485
1883E	Look Back bitmasks, greedy	1700	x7297
1883D	In Love data structures, greedy	1500	x10353
1883C	Raspberries dp, math	1000	x23834
1883B	Chemistry strings	900	x28144
1883A	Morning math	800	x24387
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x287
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x970
1882D	Tree XOR bitmasks, dfs and similar, dp, greedy, trees	1900	x5094
1882C	Card Game brute force, greedy	1500	x11601
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14665
1882A	Increasing Sequence greedy	800	x24626
1881G	Anya and the Mysterious String binary search, data structures	2000	x2216
1881F	Minimum Maximum Distance dfs and similar, dp, graphs, shortest paths, trees	1700	x6217
1881E	Block Sequence dp	1500	x12265
1881D	Divide and Equalize math, number theory	1300	x15240
1881C	Perfect Square brute force, implementation	1200	x16178
1881B	Three Threadlets math	900	x24160
1881A	Don't Try to Count brute force, strings	800	x28497
1879F	Last Man Standing brute force, data structures, number theory	2800	x477
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1195
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6855
1879C	Make it Alternating combinatorics, dp, greedy	1300	x15434
1879B	Chips on the Board constructive algorithms, greedy	900	x21507
1879A	Rigged! greedy	800	x22438
1878G	wxhtzdy ORO Tree binary search, bitmasks, brute force, data structures, dfs and similar, implementation, trees	2300	x1110
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3879
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x11544
1878D	Reverse Madness data structures, greedy	1600	x7791
1878C	Vasilije in Cacak math	900	x29552
1878B	Aleksa and Stack constructive algorithms, math	800	x30323
1878A	How Much Does Daytona Cost? greedy	800	x40202
1877C	Joyboard math, number theory	1200	x10318
1877A	Goals of Victory math	800	x19969
1876G	Clubstep binary search, brute force, data structures, greedy, trees	3500	x118
1876F	Indefinite Clownfish binary search, graphs	3500	x121
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x258
1876D	Lexichromatography combinatorics, dfs and similar, dsu, graphs, two pointers	2500	x829
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2172
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7704
1876A	Helmets in Night Light greedy, sortings	1000	x15526
1875D	Jellyfish and Mex dp	1600	x7839
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11051
1875A	Jellyfish and Undertale brute force, greedy	900	x22720
1874G	Jellyfish and Inscryption dp	3500	x78
1874F	Jellyfish and OEIS dp	3500	x190
1874E	Jellyfish and Hack dp, math	3000	x282
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x668
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1535
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1086
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x16189
1873H	Mad City dfs and similar, dsu, games, graphs, shortest paths, trees	1700	x6769
1873G	ABBC or BACB constructive algorithms, greedy	1500	x12145
1873F	Money Trees binary search, greedy, math, two pointers	1300	x14417
1873E	Building an Aquarium binary search, sortings	1100	x24030
1873D	1D Eraser greedy, implementation, two pointers	800	x33463
1873C	Target Practice implementation, math	800	x36752
1873B	Good Kid brute force, greedy, math	800	x45734
1873A	Short Sort brute force, implementation	800	x50276
1872G	Replace With Product brute force, greedy, math	2000	x4067
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5941
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12408
1872D	Plus Minus Permutation math	1200	x21707
1872C	Non-coprime Split math, number theory	1100	x22435
1872B	The Corridor or There and Back Again greedy, implementation	900	x27011
1872A	Two Vessels brute force, greedy, math	800	x37831
1870H	Standard Graph Problem data structures, graphs, greedy, trees	3500	x79
1870G	MEXanization data structures	3300	x204
1870F	Lazy Numbers binary search, math	2900	x466
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2239
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6559
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10959
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13621
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18670
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x14911
1869A	Make It Zero constructive algorithms	900	x19431
1868F	LIS? data structures, greedy, implementation	3500	x70
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x74
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x253
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1098
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2299
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6599
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11421
1867F	Most Different Tree brute force, constructive algorithms, dfs and similar, greedy, hashing	2700	x402
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x3035
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3580
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5462
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x10776
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16167
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x19484
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x700
1866L	Lihmuf Balling binary search, brute force, math	2400	x663
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x415