Problemset - Codeforces

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Educational Codeforces Round 166 (Rated for Div. 2)
27:33:28
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Problems

#	Name
1884B	Haunted House binary search, greedy, math, two pointers	1100	x11792
1884A	Simple Design brute force, greedy, math	800	x16577
1883C	Raspberries dp, math	1000	x23196
1883A	Morning math	800	x24143
1881D	Divide and Equalize math, number theory	1300	x14834
1881B	Three Threadlets math	900	x23897
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6689
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3829
1878C	Vasilije in Cacak math	900	x28949
1878B	Aleksa and Stack constructive algorithms, math	800	x30052
1877C	Joyboard math, number theory	1200	x10211
1877A	Goals of Victory math	800	x19396
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10904
1874E	Jellyfish and Hack dp, math	3000	x275
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x657
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1521
1873F	Money Trees binary search, greedy, math, two pointers	1300	x14077
1873C	Target Practice implementation, math	800	x35978
1873B	Good Kid brute force, greedy, math	800	x44966
1872G	Replace With Product brute force, greedy, math	2000	x4031
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5862
1872D	Plus Minus Permutation math	1200	x21334
1872C	Non-coprime Split math, number theory	1100	x22247
1872A	Two Vessels brute force, greedy, math	800	x37580
1870F	Lazy Numbers binary search, math	2900	x465
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10859
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13490
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18584
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x14636
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1091
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2291
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6521
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3546
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x698
1866L	Lihmuf Balling binary search, brute force, math	2400	x660
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7277
1866A	Ambitious Kid math	800	x18561
1864H	Asterism Stream dp, math, matrices	3200	x273
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2479
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6399
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12725
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19842
1863G	Swaps combinatorics, dp, graphs, math	2800	x577
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1041
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2637
1863C	MEX Repetition implementation, math	1100	x13492
1863B	Split Sort greedy, math, sortings	1100	x14682
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2684
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x16198
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1632
1861A	Prime Deletion constructive algorithms, math	800	x23235
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x265
1860B	Fancy Coins binary search, brute force, greedy, math	1200	x16176
1859E	Maximum Monogonosity brute force, dp, math	2500	x1679
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x16406
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x24617
1859A	United We Stand constructive algorithms, math, number theory	800	x29701
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22085
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x10734
1858A	Buttons games, greedy, math	800	x34823
1857F	Sum and Product binary search, data structures, math	1600	x10531
1857E	Power of Points math, sortings	1500	x11622
1857D	Strong Vertices math, sortings, trees	1300	x17921
1857B	Maximum Rounding greedy, implementation, math	1100	x22249
1857A	Array Coloring greedy, math	800	x44129
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1321
1856B	Good Arrays implementation, math	900	x23279
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x24164
1855A	Dalton the Teacher greedy, math	800	x27285
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x386
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1411
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6739
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13466
1853B	Fibonaccharsis binary search, brute force, math	1200	x16626
1853A	Desorting brute force, greedy, math	800	x28618
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1471
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4178
1852A	Ntarsis' Set binary search, math, number theory	1800	x7614
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5376
1851D	Prefix Permutation Sums implementation, math	1300	x14463
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x28765
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11367
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x17461
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x21105
1849B	Monsters greedy, math, sortings	1000	x23041
1849A	Morning Sandwich implementation, math	800	x27162
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1465
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x750
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2529
1848C	Vika and Price Tags math, number theory	1800	x6008
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13564
1848A	Vika and Her Friends games, math	900	x16301
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x860
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x318
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6636
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15541
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18473
1846A	Rudolph and Cut the Rope implementation, math	800	x31573
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x356
1845E	Boxes and Balls dp, implementation, math	2500	x1277