Problemset - Codeforces

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Codeforces Round 957 (Div. 3)
3 days
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Problems

#	Name
1857C	Assembly via Minimums greedy, sortings	1200	x24141
1857B	Maximum Rounding greedy, implementation, math	1100	x22485
1857A	Array Coloring greedy, math	800	x45335
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1336
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x5051
1856D	More Wrong divide and conquer, interactive	2100	x3161
1856C	To Become Max binary search, brute force, data structures, dp	1600	x11608
1856B	Good Arrays implementation, math	900	x23638
1856A	Tales of a Sort implementation	800	x26112
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x24947
1855A	Dalton the Teacher greedy, math	800	x27536
1854F	Mark and Spaceship brute force, dp	3500	x116
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x389
1854D	Michael and Hotel binary search, interactive, trees	3000	x530
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1417
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3417
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6819
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13671
1853B	Fibonaccharsis binary search, brute force, math	1200	x16913
1853A	Desorting brute force, greedy, math	800	x29727
1852F	Panda Meetups data structures, dp, flows	3500	x102
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x162
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x434
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1484
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4275
1852A	Ntarsis' Set binary search, math, number theory	1800	x7769
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3082
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5534
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x9818
1851D	Prefix Permutation Sums implementation, math	1300	x14714
1851C	Tiles Comeback greedy	1000	x22768
1851B	Parity Sort greedy, sortings, two pointers	800	x28672
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29064
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x7812
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11716
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x18015
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x21790
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x34162
1850C	Word on the Paper implementation, strings	800	x42451
1850B	Ten Words of Wisdom implementation, sortings	800	x41517
1850A	To My Critics implementation, sortings	800	x53171
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x681
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1561
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8100
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x10125
1849B	Monsters greedy, math, sortings	1000	x23936
1849A	Morning Sandwich implementation, math	800	x27416
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1490
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x761
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2550
1848C	Vika and Price Tags math, number theory	1800	x6121
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x14013
1848A	Vika and Her Friends games, math	900	x16494
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x867
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x321
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3662
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12485
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19535
1847A	The Man who became a God greedy, sortings	800	x21844
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4200
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2980
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6760
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15975
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18759
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x18365
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26444
1846A	Rudolph and Cut the Rope implementation, math	800	x31945
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x359
1845E	Boxes and Balls dp, implementation, math	2500	x1290
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7525
1845C	Strong Password binary search, dp, greedy, strings	1400	x13696
1845B	Come Together geometry, implementation, math	900	x21191
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x25670
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x133
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x674
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x377
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x748
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1704
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11943
1844C	Particles dp, greedy, implementation, math	1300	x15170
1844B	Permutations & Primes constructive algorithms, math	1000	x17755
1844A	Subtraction Game constructive algorithms, games	800	x24173
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1517
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5121
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x11538
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x17423
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x31929
1843B	Long Long greedy, math, two pointers	800	x28439
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x33531
1842I	Tenzing and Necklace divide and conquer, dp, greedy	3500	x116
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x583
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x960
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1266
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1561
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x3971
1842C	Tenzing and Balls dp	1500	x12134
1842B	Tenzing and Books bitmasks, greedy, math	1100	x16295
1842A	Tenzing and Tsondu games, math	800	x19614
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x479
1841E	Fill the Matrix data structures, greedy, math	2200	x1929