Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
1878C	Vasilije in Cacak math	900	x65491
1878B	Aleksa and Stack constructive algorithms, math	800	x34704
1878A	How Much Does Daytona Cost? greedy	800	x89787
1877C	Joyboard math, number theory	1200	x13280
1877A	Goals of Victory math	800	x61539
1876G	Clubstep binary search, brute force, data structures, greedy, trees	3500	x303
1876F	Indefinite Clownfish binary search, graphs	3500	x249
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x379
1876D	Lexichromatography combinatorics, dfs and similar, dsu, graphs, two pointers	2500	x1113
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2900
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x10393
1876A	Helmets in Night Light greedy, sortings	1000	x40650
1875D	Jellyfish and Mex dp	1600	x11947
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x14219
1875A	Jellyfish and Undertale brute force, greedy	900	x53876
1874G	Jellyfish and Inscryption dp	3500	x170
1874F	Jellyfish and OEIS dp	3500	x521
1874E	Jellyfish and Hack dp, math	3000	x784
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x1044
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x2273
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1456
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x19847
1873H	Mad City dfs and similar, dsu, games, graphs, shortest paths, trees	1700	x9933
1873G	ABBC or BACB constructive algorithms, greedy	1500	x17594
1873F	Money Trees binary search, greedy, math, two pointers	1300	x20786
1873E	Building an Aquarium binary search, sortings	1100	x49107
1873D	1D Eraser greedy, implementation, two pointers	800	x44956
1873C	Target Practice implementation, math	800	x79524
1873B	Good Kid brute force, greedy, math	800	x65577
1873A	Short Sort brute force, implementation	800	x75135
1872G	Replace With Product brute force, greedy, math	2000	x5212
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x7825
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x23485
1872D	Plus Minus Permutation math	1200	x43407
1872C	Non-coprime Split math, number theory	1100	x27008
1872B	The Corridor or There and Back Again greedy, implementation	900	x30916
1872A	Two Vessels brute force, greedy, math	800	x44035
1870H	Standard Graph Problem data structures, graphs, greedy, trees	3500	x131
1870G	MEXanization data structures	3300	x440
1870F	Lazy Numbers binary search, math	2900	x588
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x3134
1870D	Prefix Purchase greedy, implementation, sortings	1800	x8248
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x13475
1870B	Friendly Arrays bitmasks, greedy, math	1200	x16744
1870A	MEXanized Array constructive algorithms, greedy, math	800	x20434
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x28793
1869A	Make It Zero constructive algorithms	900	x45683
1868F	LIS? data structures, greedy, implementation	3500	x145
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x135
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x445
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1418
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2831
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x8514
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x13835
1867F	Most Different Tree brute force, constructive algorithms, dfs and similar, greedy, hashing	2700	x626
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x3863
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x4465
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x7043
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x12904
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x18899
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x21268
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x1027
1866L	Lihmuf Balling binary search, brute force, math	2400	x921
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x598
1866J	Jackets and Packets dp	2800	x454
1866I	Imagination Castle dp, games, two pointers	2300	x986
1866H	Happy Sets combinatorics	2100	x1978
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x2329
1866F	Freak Joker Process binary search, data structures, sortings	3100	x210
1866E	Elevators of Tamem dp	2700	x579
1866D	Digital Wallet dp, greedy	2300	x1624
1866C	Completely Searching for Inversions dfs and similar, dp, graphs	1900	x3483
1866B	Battling with Numbers combinatorics, math, number theory	1400	x9570
1866A	Ambitious Kid math	800	x60614
1864I	Future Dominators graphs, greedy	3500	x112
1864H	Asterism Stream dp, math, matrices	3200	x640
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x405
1864F	Exotic Queries data structures, implementation, sortings	2300	x1700
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x3171
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x7804
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x15627
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x16882
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x21599
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x139
1863H	Goldberg Machine 3 dp, trees	3500	x116
1863G	Swaps combinatorics, dp, graphs, math	2800	x1081
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1417
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x3342
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x10978
1863C	MEX Repetition implementation, math	1100	x15785
1863B	Split Sort greedy, math, sortings	1100	x16980
1863A	Channel greedy, implementation	800	x18955
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x3568
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x7876
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x13144
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x20466
1862C	Flower City Fence binary search, data structures, implementation, sortings	1100	x23509
1862B	Sequence Game constructive algorithms	800	x62744
1862A	Gift Carpet dp, greedy, implementation, strings	800	x36893
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x358

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