Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
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Problems

#	Name
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2253
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6376
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3475
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x682
1866L	Lihmuf Balling binary search, brute force, math	2400	x647
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7139
1866A	Ambitious Kid math	800	x17547
1864H	Asterism Stream dp, math, matrices	3200	x265
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2454
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6283
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12505
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19707
1863G	Swaps combinatorics, dp, graphs, math	2800	x525
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x989
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2589
1863C	MEX Repetition implementation, math	1100	x13278
1863B	Split Sort greedy, math, sortings	1100	x14496
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2613
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x15874
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1594
1861A	Prime Deletion constructive algorithms, math	800	x22997
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x262
1860B	Fancy Coins binary search, brute force, greedy, math	1200	x15900
1859E	Maximum Monogonosity brute force, dp, math	2500	x1649
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x16206
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x23981
1859A	United We Stand constructive algorithms, math, number theory	800	x28924
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x21801
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x10528
1858A	Buttons games, greedy, math	800	x33761
1857F	Sum and Product binary search, data structures, math	1600	x10292
1857E	Power of Points math, sortings	1500	x11391
1857D	Strong Vertices math, sortings, trees	1300	x17506
1857B	Maximum Rounding greedy, implementation, math	1100	x21948
1857A	Array Coloring greedy, math	800	x42909
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1297
1856B	Good Arrays implementation, math	900	x22938
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x23449
1855A	Dalton the Teacher greedy, math	800	x27025
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x373
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1382
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6624
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13253
1853B	Fibonaccharsis binary search, brute force, math	1200	x16398
1853A	Desorting brute force, greedy, math	800	x27547
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1417
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4105
1852A	Ntarsis' Set binary search, math, number theory	1800	x7492
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5233
1851D	Prefix Permutation Sums implementation, math	1300	x14243
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x28476
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11088
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x16923
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x20542
1849B	Monsters greedy, math, sortings	1000	x22354
1849A	Morning Sandwich implementation, math	800	x26871
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1433
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x735
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2498
1848C	Vika and Price Tags math, number theory	1800	x5897
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13217
1848A	Vika and Her Friends games, math	900	x16132
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x845
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x311
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6527
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15194
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18207
1846A	Rudolph and Cut the Rope implementation, math	800	x31195
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x347
1845E	Boxes and Balls dp, implementation, math	2500	x1252
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7249
1845B	Come Together geometry, implementation, math	900	x20766
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24292
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x126
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x632
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x365
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x732
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11554
1844C	Particles dp, greedy, implementation, math	1300	x14727
1844B	Permutations & Primes constructive algorithms, math	1000	x17369
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1455
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x4930
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x16915
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x30869
1843B	Long Long greedy, math, two pointers	800	x27865
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x554
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x910
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1517
1842B	Tenzing and Books bitmasks, greedy, math	1100	x15481
1842A	Tenzing and Tsondu games, math	800	x19388
1841E	Fill the Matrix data structures, greedy, math	2200	x1865
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7228
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x884
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2206
1840C	Ski Resort combinatorics, math, two pointers	1000	x24274
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x21375
1839A	The Good Array greedy, implementation, math	800	x17051
1838E	Count Supersequences combinatorics, dp, math	2500	x1345
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13337
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x15757