Problemset - Codeforces

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Pinely Round 4 (Div. 1 + Div. 2)
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Problems

#	Name
1864I	Future Dominators graphs, greedy	3500	x86
1864H	Asterism Stream dp, math, matrices	3200	x277
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x256
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x74
1863H	Goldberg Machine 3 dp, trees	3500	x74
1863G	Swaps combinatorics, dp, graphs, math	2800	x591
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1087
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x190
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x268
1860E	Fast Travel Text Editor data structures, dfs and similar, graphs, shortest paths	2400	x1351
1859F	Teleportation in Byteland data structures, dfs and similar, divide and conquer, graphs, shortest paths, trees	3200	x386
1859E	Maximum Monogonosity brute force, dp, math	2500	x1736
1858E2	Rollbacks (Hard Version) data structures, interactive, trees	2600	x1028
1858E1	Rollbacks (Easy Version) brute force, data structures, dfs and similar, trees	2500	x1275
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1350
1854F	Mark and Spaceship brute force, dp	3500	x116
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x390
1854D	Michael and Hotel binary search, interactive, trees	3000	x530
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1433
1852F	Panda Meetups data structures, dp, flows	3500	x104
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x162
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x435
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1493
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x692
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1501
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x763
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x872
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x322
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x364
1845E	Boxes and Balls dp, implementation, math	2500	x1300
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x134
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x690
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x393
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x766
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1826
1842I	Tenzing and Necklace divide and conquer, dp, greedy	3500	x116
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x622
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x981
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1274
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x481
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x921
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1195
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x309
1838E	Count Supersequences combinatorics, dp, math	2500	x1436
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2135
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x159
1835E	Old Mobile combinatorics, dp, probabilities	3500	x220
1835D	Doctor's Brown Hypothesis dfs and similar, graphs, math, number theory	2900	x468
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x959
1835B	Lottery binary search, brute force, greedy, math, two pointers	2500	x927
1834F	Typewriter brute force, math	2500	x504
1832F	Zombies binary search, dp	3200	x260
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1850
1830F	The Third Grace data structures, dp	3200	x241
1830E	Bully Sort data structures, math	3500	x236
1830D	Mex Tree brute force, dp, trees	2800	x636
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1583
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x114
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x372
1827D	Two Centroids data structures, dfs and similar, greedy, trees	2800	x740
1827C	Palindrome Partition binary search, brute force, data structures, dp, hashing, strings	2600	x1169
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1821
1826F	Fading into Fog geometry, interactive, math, probabilities	2800	x346
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1564
1824E	LuoTianyi and Cartridge data structures, trees	3500	x127
1824D	LuoTianyi and the Function data structures	3000	x474
1824C	LuoTianyi and XOR-Tree data structures, dfs and similar, dp, dsu, greedy, trees	2500	x1345
1823F	Random Walk dp, graphs, math, probabilities, trees	2600	x838
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x1210
1821F	Timber combinatorics, dp, fft, math	2600	x728
1819F	Willy-nilly, Crack, Into Release! data structures, dp	3500	x129
1819E	Roads in E City interactive, math, probabilities, trees	3200	x276
1819D	Misha and Apples brute force, data structures, dp, two pointers	2800	x613
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1434
1817F	Entangled Substrings string suffix structures, strings	3500	x188
1817E	Half-sum brute force, divide and conquer, greedy	3400	x257
1817D	Toy Machine constructive algorithms, games, implementation	2700	x724
1817C	Similar Polynomials combinatorics, math	2400	x951
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x218
1815E	Bosco and Particle dp, math, number theory, strings	3100	x335
1815D	XOR Counting bitmasks, combinatorics, dp, math	2600	x1089
1814F	Communication Towers brute force, divide and conquer, dsu	2700	x578
1814D	Balancing Weapons binary search, brute force, data structures, math, two pointers	2500	x849
1810H	Last Number combinatorics, math	2900	x133
1810G	The Maximum Prefix dp	3200	x667
1810F	M-tree data structures, math, sortings, trees	2800	x560
1809G	Prediction combinatorics, dp, math	2800	x433
1809F	Traveling in Berland binary search, data structures, graphs, greedy, implementation	2500	x739
1809E	Two Tanks binary search, dp, implementation, math	2400	x813
1808E3	Minibuses on Venus (hard version) brute force, combinatorics, dp, math	2800	x431
1808E2	Minibuses on Venus (medium version) combinatorics, divide and conquer, dp, matrices	2500	x672
1806F2	GCD Master (hard version) greedy, math, sortings	2900	x286
1806F1	GCD Master (easy version) greedy, math, number theory, sortings	2900	x345
1806D	DSU Master combinatorics, dp, dsu, math	2500	x871
1805F2	Survival of the Weakest (hard version) greedy, math, sortings, two pointers	3100	x337
1805F1	Survival of the Weakest (easy version) binary search, brute force, implementation, math, sortings	2600	x863
1804H	Code Lock bitmasks, dp	3300	x174
1804G	Flow Control data structures, dsu, implementation	3500	x198
1804F	Approximate Diameter binary search, divide and conquer, graphs, shortest paths	2700	x891
1804E	Routing bitmasks, brute force, dfs and similar, dp, graphs	2400	x1403