Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x2133
1861D	Sorting By Multiplication dp, greedy	1800	x8208
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x12626
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x24426
1861A	Prime Deletion constructive algorithms, math	800	x26291
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x364
1860E	Fast Travel Text Editor data structures, dfs and similar, graphs, shortest paths	2400	x1906
1860D	Balanced String dp	2200	x3738
1860C	Game on Permutation data structures, dp, games, greedy	1400	x16108
1860B	Fancy Coins binary search, brute force, greedy, math	1200	x19370
1860A	Not a Substring constructive algorithms, strings	900	x23881
1859F	Teleportation in Byteland data structures, dfs and similar, divide and conquer, graphs, shortest paths, trees	3200	x620
1859E	Maximum Monogonosity brute force, dp, math	2500	x2192
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x8145
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x19009
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x49356
1859A	United We Stand constructive algorithms, math, number theory	800	x61830
1858E2	Rollbacks (Hard Version) data structures, interactive, trees	2600	x1340
1858E1	Rollbacks (Easy Version) brute force, data structures, dfs and similar, trees	2500	x1674
1858D	Trees and Segments brute force, data structures, dp, greedy, two pointers	2200	x3316
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x25940
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x13293
1858A	Buttons games, greedy, math	800	x75338
1857G	Counting Graphs combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees	2000	x5796
1857F	Sum and Product binary search, data structures, math	1600	x14847
1857E	Power of Points math, sortings	1500	x15264
1857D	Strong Vertices math, sortings, trees	1300	x32237
1857C	Assembly via Minimums greedy, sortings	1200	x46529
1857B	Maximum Rounding greedy, implementation, math	1100	x25070
1857A	Array Coloring greedy, math	800	x88738
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1859
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x6702
1856D	More Wrong divide and conquer, interactive	2100	x3920
1856C	To Become Max binary search, brute force, data structures, dp	1600	x19927
1856B	Good Arrays implementation, math	900	x28118
1856A	Tales of a Sort implementation	800	x28381
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x51022
1855A	Dalton the Teacher greedy, math	800	x30256
1854F	Mark and Spaceship brute force, dp	3500	x155
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x593
1854D	Michael and Hotel binary search, interactive, trees	3000	x720
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x2019
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x4461
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x8169
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x16287
1853B	Fibonaccharsis binary search, brute force, math	1200	x20165
1853A	Desorting brute force, greedy, math	800	x63636
1852F	Panda Meetups data structures, dp, flows	3500	x154
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x251
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x683
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x2197
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x5609
1852A	Ntarsis' Set binary search, math, number theory	1800	x9452
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x4317
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x7945
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x13836
1851D	Prefix Permutation Sums implementation, math	1300	x17688
1851C	Tiles Comeback greedy	1000	x26331
1851B	Parity Sort greedy, sortings, two pointers	800	x33240
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x31872
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x10389
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x16043
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x25961
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x38925
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x68427
1850C	Word on the Paper implementation, strings	800	x55629
1850B	Ten Words of Wisdom implementation, sortings	800	x52036
1850A	To My Critics implementation, sortings	800	x78220
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x932
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x2368
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x10631
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x12873
1849B	Monsters greedy, math, sortings	1000	x50492
1849A	Morning Sandwich implementation, math	800	x32589
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x2209
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x996
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x3060
1848C	Vika and Price Tags math, number theory	1800	x7329
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x27501
1848A	Vika and Her Friends games, math	900	x18620
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x1123
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x440
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x4362
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x15128
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x22731
1847A	The Man who became a God greedy, sortings	800	x23007
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x6217
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3904
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x8986
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x27797
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x23173
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x21968
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x29217
1846A	Rudolph and Cut the Rope implementation, math	800	x35200
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x506
1845E	Boxes and Balls dp, implementation, math	2500	x1766
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x9457
1845C	Strong Password binary search, dp, greedy, strings	1400	x17368
1845B	Come Together geometry, implementation, math	900	x24161
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x54264

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