Problemset - Codeforces

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Codeforces Round (Div. 2)
6 days

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Problems

#	Name
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1619
1887B	Time Travel binary search, graphs, shortest paths	1900	x2773
1886F	Diamond Theft data structures, greedy	3300	x162
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1371
1886D	Monocarp and the Set combinatorics, data structures, math	2100	x3398
1886C	Decreasing String implementation, strings	1600	x10670
1884E	Hard Design greedy, implementation, math	2800	x271
1884D	Counting Rhyme dp, math, number theory	2100	x2970
1884C	Medium Design brute force, data structures, dp, greedy, sortings	1700	x5689
1883G2	Dances (Hard Version) binary search, greedy, sortings, two pointers	1900	x5053
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x9812
1883F	You Are So Beautiful data structures	1400	x8721
1883E	Look Back bitmasks, greedy	1700	x7440
1883D	In Love data structures, greedy	1500	x10581
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x287
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x977
1882D	Tree XOR bitmasks, dfs and similar, dp, greedy, trees	1900	x5130
1882C	Card Game brute force, greedy	1500	x11697
1881G	Anya and the Mysterious String binary search, data structures	2000	x2229
1881F	Minimum Maximum Distance dfs and similar, dp, graphs, shortest paths, trees	1700	x6291
1881E	Block Sequence dp	1500	x12498
1879F	Last Man Standing brute force, data structures, number theory	2800	x479
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1207
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6925
1878G	wxhtzdy ORO Tree binary search, bitmasks, brute force, data structures, dfs and similar, implementation, trees	2300	x1128
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3916
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x11727
1878D	Reverse Madness data structures, greedy	1600	x7877
1876G	Clubstep binary search, brute force, data structures, greedy, trees	3500	x119
1876F	Indefinite Clownfish binary search, graphs	3500	x124
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x260
1876D	Lexichromatography combinatorics, dfs and similar, dsu, graphs, two pointers	2500	x834
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2185
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7800
1875D	Jellyfish and Mex dp	1600	x7953
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11164
1874G	Jellyfish and Inscryption dp	3500	x79
1874F	Jellyfish and OEIS dp	3500	x191
1874E	Jellyfish and Hack dp, math	3000	x289
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x675
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1545
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1095
1873H	Mad City dfs and similar, dsu, games, graphs, shortest paths, trees	1700	x6855
1873G	ABBC or BACB constructive algorithms, greedy	1500	x12313
1872G	Replace With Product brute force, greedy, math	2000	x4084
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5981
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12574
1870H	Standard Graph Problem data structures, graphs, greedy, trees	3500	x80
1870G	MEXanization data structures	3300	x206
1870F	Lazy Numbers binary search, math	2900	x469
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2258
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6603
1868F	LIS? data structures, greedy, implementation	3500	x71
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x77
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x257
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1106
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2319
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6665
1867F	Most Different Tree brute force, constructive algorithms, dfs and similar, greedy, hashing	2700	x406
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x3053
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3598
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5511
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x703
1866L	Lihmuf Balling binary search, brute force, math	2400	x664
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x416
1866J	Jackets and Packets dp	2800	x271
1866I	Imagination Castle dp, games, two pointers	2300	x684
1866H	Happy Sets combinatorics	2100	x1556
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1548
1866F	Freak Joker Process binary search, data structures, sortings	3100	x125
1866E	Elevators of Tamem dp	2700	x279
1866D	Digital Wallet dp, greedy	2300	x1222
1866C	Completely Searching for Inversions dfs and similar, dp, graphs	1900	x2917
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7402
1864I	Future Dominators graphs, greedy	3500	x85
1864H	Asterism Stream dp, math, matrices	3200	x276
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x255
1864F	Exotic Queries data structures, implementation, sortings	2300	x1353
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2503
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6495
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x72
1863H	Goldberg Machine 3 dp, trees	3500	x74
1863G	Swaps combinatorics, dp, graphs, math	2800	x587
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1054
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2656
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9165
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2737
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x5871
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x10103
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x188
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1646
1861D	Sorting By Multiplication dp, greedy	1800	x6441
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9699
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x266
1860E	Fast Travel Text Editor data structures, dfs and similar, graphs, shortest paths	2400	x1336
1860D	Balanced String dp	2200	x2839
1860C	Game on Permutation data structures, dp, games, greedy	1400	x12737
1859F	Teleportation in Byteland data structures, dfs and similar, divide and conquer, graphs, shortest paths, trees	3200	x381
1859E	Maximum Monogonosity brute force, dp, math	2500	x1691
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6692