Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
00:51:30

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Problems

#	Name
1866I	Imagination Castle dp, games, two pointers	2300	x735
1866H	Happy Sets combinatorics	2100	x1632
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1665
1866F	Freak Joker Process binary search, data structures, sortings	3100	x136
1866E	Elevators of Tamem dp	2700	x403
1866D	Digital Wallet dp, greedy	2300	x1296
1866C	Completely Searching for Inversions dfs and similar, dp, graphs	1900	x3024
1864I	Future Dominators graphs, greedy	3500	x88
1864H	Asterism Stream dp, math, matrices	3200	x278
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x264
1864F	Exotic Queries data structures, implementation, sortings	2300	x1428
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2579
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6728
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x77
1863H	Goldberg Machine 3 dp, trees	3500	x76
1863G	Swaps combinatorics, dp, graphs, math	2800	x607
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1118
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2751
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2852
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x6205
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x10634
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x203
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1706
1861D	Sorting By Multiplication dp, greedy	1800	x6717
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x10049
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x274
1860E	Fast Travel Text Editor data structures, dfs and similar, graphs, shortest paths	2400	x1392
1860D	Balanced String dp	2200	x2944
1859F	Teleportation in Byteland data structures, dfs and similar, divide and conquer, graphs, shortest paths, trees	3200	x398
1859E	Maximum Monogonosity brute force, dp, math	2500	x1765
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6957
1858E2	Rollbacks (Hard Version) data structures, interactive, trees	2600	x1060
1858E1	Rollbacks (Easy Version) brute force, data structures, dfs and similar, trees	2500	x1323
1858D	Trees and Segments brute force, data structures, dp, greedy, two pointers	2200	x2811
1857G	Counting Graphs combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees	2000	x4417
1857F	Sum and Product binary search, data structures, math	1600	x11428
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1374
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x5257
1856D	More Wrong divide and conquer, interactive	2100	x3236
1856C	To Become Max binary search, brute force, data structures, dp	1600	x12233
1854F	Mark and Spaceship brute force, dp	3500	x119
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x414
1854D	Michael and Hotel binary search, interactive, trees	3000	x539
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1466
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3502
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6958
1852F	Panda Meetups data structures, dp, flows	3500	x106
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x165
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x452
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1540
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4435
1852A	Ntarsis' Set binary search, math, number theory	1800	x8000
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3200
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5792
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8136
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x715
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1634
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8414
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x10463
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1533
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x783
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2600
1848C	Vika and Price Tags math, number theory	1800	x6265
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x888
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x329
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3742
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4364
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3083
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6995
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x371
1845E	Boxes and Balls dp, implementation, math	2500	x1316
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7766
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x137
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x717
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x400
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x777
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1866
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1588
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5281
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x12224
1842I	Tenzing and Necklace divide and conquer, dp, greedy	3500	x119
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x653
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x1023
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1312
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1611
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4065
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x486
1841E	Fill the Matrix data structures, greedy, math	2200	x2000
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4375
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7787
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x945
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2354
1840F	Railguns brute force, dfs and similar, dp, graphs	2200	x1788
1840E	Character Blocking data structures, hashing, implementation	1600	x7996
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1212
1839D	Ball Sorting data structures, dp, sortings	2100	x2299
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x313
1838E	Count Supersequences combinatorics, dp, math	2500	x1469
1838D	Bracket Walk data structures, greedy, strings	2100	x3241
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2190