Problemset - Codeforces

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Codeforces Round (Div. 2)
4 days

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Problems

#	Name
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x2650
1832F	Zombies binary search, dp	3200	x151
1832E	Combinatorics Problem brute force, combinatorics, dp	2200	x1414
1830F	The Third Grace data structures, dp		x17
1830D	Mex Tree brute force, dp, trees		x171
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, implementation, trees		x6834
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x3877
1829G	Hits Different data structures, dp, implementation, math	1600	x5380
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x15683
1827C	Palindrome Partition binary search, brute force, data structures, dp, hashing, strings	2600	x644
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1093
1827B1	Range Sorting (Easy Version) binary search, dp, dsu, greedy, trees, two pointers	2000	x2495
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1034
1826D	Running Miles brute force, dp, greedy	1700	x4735
1824C	LuoTianyi and XOR-Tree data structures, dfs and similar, dp, dsu, greedy, trees	2500	x791
1823F	Random Walk dp, graphs, math, probabilities, trees	2600	x445
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x888
1822F	Gardening Friends brute force, dfs and similar, dp, graphs, trees	1700	x3373
1821F	Timber combinatorics, dp, fft, math	2600	x485
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x1540
1819F	Willy-nilly, Crack, Into Release! data structures, dp	3500	x82
1819D	Misha and Apples brute force, data structures, dp, two pointers	2800	x440
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1027
1815E	Bosco and Particle dp, math, number theory, strings	3100	x170
1815D	XOR Counting bitmasks, combinatorics, dp, math	2600	x697
1814E	Chain Chips data structures, dp, matrices	2300	x878
1811G2	Vlad and the Nice Paths (hard version) binary search, combinatorics, data structures, dp, math, two pointers	2200	x1082
1811G1	Vlad and the Nice Paths (easy version) combinatorics, dp, math	2100	x1313
1811E	Living Sequence binary search, dp, math, number theory	1500	x8190
1810G	The Maximum Prefix dp	3200	x222
1809G	Prediction combinatorics, dp, math	2800	x257
1809E	Two Tanks binary search, dp, implementation, math	2400	x600
1808E3	Minibuses on Venus (hard version) brute force, combinatorics, dp, math	2800	x265
1808E2	Minibuses on Venus (medium version) combinatorics, divide and conquer, dp, matrices	2500	x434
1808E1	Minibuses on Venus (easy version) combinatorics, divide and conquer, dp	2200	x874
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x2714
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x13863
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x14366
1806D	DSU Master combinatorics, dp, dsu, math	2500	x631
1805E	There Should Be a Lot of Maximums brute force, data structures, dfs and similar, dp, trees, two pointers	2300	x1123
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x4366
1804H	Code Lock bitmasks, dp	3300	x111
1804E	Routing bitmasks, brute force, dfs and similar, dp, graphs	2400	x1131
1804D	Accommodation brute force, dp, greedy, implementation	2000	x3687
1801F	Another n-dimensional chocolate bar dp, math, meet-in-the-middle, number theory	2700	x396
1801D	The way home binary search, data structures, dp, graphs, greedy, shortest paths, sortings	2100	x1394
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x2307
1799H	Tree Cutting bitmasks, dfs and similar, dp	3200	x173
1799G	Count Voting combinatorics, dp, math	2600	x497
1799F	Halve or Subtract binary search, brute force, dp, greedy, sortings	2700	x588
1799D2	Hot Start Up (hard version) data structures, dp	2100	x1755
1799D1	Hot Start Up (easy version) dp	1900	x3019
1798F	Gifts from Grandfather Ahmed dp, math, number theory	2500	x334
1798E	Multitest Generator brute force, dp	2300	x1188
1797D	Li Hua and Tree brute force, data structures, dfs and similar, dp, implementation, trees	1900	x2646
1796E	Colored Subgraphs dfs and similar, dp, games, greedy, trees	2500	x503
1796D	Maximum Subarray data structures, dp, greedy, two pointers	2000	x2833
1795E	Explosions? binary search, data structures, dp, greedy, math	2200	x1576
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x749
1794D	Counting Factorizations combinatorics, divide and conquer, dp, math, number theory	1900	x2658
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x716
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x4624
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x297
1792F1	Graph Coloring (easy version) combinatorics, dp, graphs	2700	x507
1792E	Divisors and Table brute force, dfs and similar, dp, number theory	2400	x1053
1791E	Negatives and Positives dp, greedy, sortings	1100	x19852
1789F	Serval and Brain Power bitmasks, brute force, dp, greedy, implementation, strings	2700	x358
1789E	Serval and Music Game brute force, dp, implementation, math, number theory	2500	x627
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x6417
1788E	Sum Over Zero data structures, dfs and similar, dp	2200	x1945
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x146
1787C	Remove the Bracket dp, greedy, math	1600	x5447
1784E	Infinite Game brute force, combinatorics, dp, games, probabilities	3100	x207
1784D	Wooden Spoon combinatorics, dp	2400	x732
1783D	Different Arrays brute force, dp, implementation	2000	x3446
1781F	Bracket Insertion combinatorics, dp, math, trees	2700	x581
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1068
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1047
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x6174
1778F	Maximizing Root dfs and similar, dp, graphs, math, number theory, trees	2600	x427
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x2060
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x2493
1776M	Parmigiana With Seafood binary search, dp, greedy, trees	3000	x221
1776K	Uniform Chemistry dp, math	3200	x45
1776E	Crossing the Railways data structures, dp	3500	x26
1776B	Vittorio Plays with LEGO Bricks dp, geometry	2200	x971
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x627
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x230
1774E	Two Chess Pieces dfs and similar, dp, greedy, trees	1900	x2771
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x9966
1773L	Lisa's Sequences dp	3500	x20
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x214
1771E	Hossam and a Letter brute force, dp, implementation, two pointers	2500	x564
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2118
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x10028
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x410
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1135
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x328
1769C2	Подкрутка II *special problem, dp	1300	x746
1769C1	Подкрутка I *special problem, brute force, dp, greedy	1200	x780

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