Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6496
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x16237
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x24087
1859A	United We Stand constructive algorithms, math, number theory	800	x29041
1858E2	Rollbacks (Hard Version) data structures, interactive, trees	2600	x998
1858E1	Rollbacks (Easy Version) brute force, data structures, dfs and similar, trees	2500	x1241
1858D	Trees and Segments brute force, data structures, dp, greedy, two pointers	2200	x2678
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x21843
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x10567
1858A	Buttons games, greedy, math	800	x33916
1857G	Counting Graphs combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees	2000	x4050
1857F	Sum and Product binary search, data structures, math	1600	x10326
1857E	Power of Points math, sortings	1500	x11426
1857D	Strong Vertices math, sortings, trees	1300	x17552
1857C	Assembly via Minimums greedy, sortings	1200	x22667
1857B	Maximum Rounding greedy, implementation, math	1100	x21979
1857A	Array Coloring greedy, math	800	x43079
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1301
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x4865
1856D	More Wrong divide and conquer, interactive	2100	x3062
1856C	To Become Max binary search, brute force, data structures, dp	1600	x10958
1856B	Good Arrays implementation, math	900	x22991
1856A	Tales of a Sort implementation	800	x25714
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x23553
1855A	Dalton the Teacher greedy, math	800	x27067
1854F	Mark and Spaceship brute force, dp	3500	x110
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x378
1854D	Michael and Hotel binary search, interactive, trees	3000	x521
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1387
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3310
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6642
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13281
1853B	Fibonaccharsis binary search, brute force, math	1200	x16453
1853A	Desorting brute force, greedy, math	800	x27714
1852F	Panda Meetups data structures, dp, flows	3500	x97
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x157
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x424
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1439
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4121
1852A	Ntarsis' Set binary search, math, number theory	1800	x7518
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2901
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5263
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x9355
1851D	Prefix Permutation Sums implementation, math	1300	x14285
1851C	Tiles Comeback greedy	1000	x22143
1851B	Parity Sort greedy, sortings, two pointers	800	x27939
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x28526
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x7446
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11127
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x16966
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x20631
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x32000
1850C	Word on the Paper implementation, strings	800	x40665
1850B	Ten Words of Wisdom implementation, sortings	800	x40082
1850A	To My Critics implementation, sortings	800	x50583
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x629
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1491
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x7698
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x9762
1849B	Monsters greedy, math, sortings	1000	x22465
1849A	Morning Sandwich implementation, math	800	x26919
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1441
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x737
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2504
1848C	Vika and Price Tags math, number theory	1800	x5916
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13268
1848A	Vika and Her Friends games, math	900	x16163
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x848
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x312
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3587
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12163
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19007
1847A	The Man who became a God greedy, sortings	800	x21617
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4017
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2856
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6549
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15256
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18244
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x17862
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x25958
1846A	Rudolph and Cut the Rope implementation, math	800	x31269
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x349
1845E	Boxes and Balls dp, implementation, math	2500	x1257
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7277
1845C	Strong Password binary search, dp, greedy, strings	1400	x13267
1845B	Come Together geometry, implementation, math	900	x20810
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24386
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x127
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x637
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x367
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x736
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1680
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11573
1844C	Particles dp, greedy, implementation, math	1300	x14747
1844B	Permutations & Primes constructive algorithms, math	1000	x17392
1844A	Subtraction Game constructive algorithms, games	800	x23787
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1464
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x4954
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x10886
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x16951