Problemset - Codeforces

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Codeforces Round 877 (Div. 2)
01:56:28

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Problems

#	Name
1839E	Decreasing Game constructive algorithms, dp, greedy, interactive		x426
1839D	Ball Sorting data structures, dp, sortings		x829
1839C	Insert Zero and Invert Prefix constructive algorithms, greedy		x6249
1839B	Lamps data structures, greedy, sortings		x8773
1839A	The Good Array greedy, math		x11744
1837F	Editorial for Two binary search, data structures, greedy, implementation		x1294
1837E	Playoff Fixing combinatorics, trees		x1431
1837D	Bracket Coloring constructive algorithms, greedy		x8926
1837C	Best Binary String constructive algorithms, greedy		x15711
1837B	Comparison String greedy		x17972
1837A	Grasshopper on a Line constructive algorithms, math		x21158
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x2866
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x4212
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x6293
1833D	Flipper brute force, constructive algorithms, greedy	1400	x9132
1833C	Vlad Building Beautiful Array greedy, math	800	x20243
1833B	Restore the Weather greedy, sortings	900	x18962
1833A	Musical Puzzle implementation, strings	800	x24729
1832F	Zombies binary search, dp	3200	x168
1832E	Combinatorics Problem brute force, combinatorics, dp	2200	x1483
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1331
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2160
1832C	Contrast Value greedy, implementation	1200	x12115
1832B	Maximum Sum brute force, sortings, two pointers	1100	x13743
1832A	New Palindrome strings	800	x19566
1831B	Array merging constructive algorithms, greedy		x12672
1831A	Twin Permutations constructive algorithms		x17466
1830F	The Third Grace data structures, dp		x41
1830E	Bully Sort data structures, math		x73
1830D	Mex Tree brute force, dp, trees		x266
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings		x904
1830B	The BOSS Can Count Pairs brute force, math		x2873
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, trees		x8012
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x4065
1829G	Hits Different data structures, dp, implementation, math	1600	x5625
1829F	Forever Winter dfs and similar, graphs, math	1300	x10295
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x12299
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x16184
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x19687
1829B	Blank Space implementation	800	x26131
1829A	Love Story implementation, strings	800	x28602
1828B	Permutation Swap math, number theory	900	x14948
1828A	Divisible Array constructive algorithms, math	800	x18464
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x59
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x169
1827D	Two Centroids data structures, dfs and similar, greedy, trees	2800	x391
1827C	Palindrome Partition binary search, brute force, data structures, dp, hashing, strings	2600	x686
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1151
1827B1	Range Sorting (Easy Version) binary search, dp, dsu, greedy, trees, two pointers	2000	x2611
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x13015
1826F	Fading into Fog geometry, interactive, math, probabilities	2800	x233
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1068
1826D	Running Miles brute force, dp, greedy	1700	x4943
1826C	Dreaming of Freedom greedy, math, number theory	1300	x8780
1826B	Lunatic Never Content math, number theory	1100	x11125
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x10425
1825B	LuoTianyi and the Table greedy, math	1000	x11288
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x15551
1824E	LuoTianyi and Cartridge data structures, trees	3500	x81
1824D	LuoTianyi and the Function data structures	3000	x259
1824C	LuoTianyi and XOR-Tree data structures, dfs and similar, dp, dsu, greedy, trees	2500	x813
1824B2	LuoTianyi and the Floating Islands (Hard Version) combinatorics, dfs and similar, math, probabilities, trees	2300	x1867
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x3138
1824A	LuoTianyi and the Show greedy, implementation	1400	x8116
1823F	Random Walk dp, graphs, math, probabilities, trees	2600	x460
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x912
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x2742
1823C	Strongly Composite greedy, math, number theory	1300	x8674
1823B	Sort with Step brute force, math, sortings	900	x11905
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x13248
1822G2	Magic Triples (Hard Version) brute force, data structures, math, number theory	2200	x1562
1822G1	Magic Triples (Easy Version) brute force, data structures, math, number theory	1700	x4345
1822F	Gardening Friends brute force, dfs and similar, dp, graphs, trees	1700	x3471
1822E	Making Anti-Palindromes greedy, math, strings	1600	x6507
1822D	Super-Permutation constructive algorithms, math	1200	x11654
1822C	Bun Lover math	800	x17887
1822B	Karina and Array greedy, math, sortings	800	x19199
1822A	TubeTube Feed brute force, implementation	800	x19280
1821F	Timber combinatorics, dp, fft, math	2600	x499
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x1579
1821D	Black Cells binary search, brute force, greedy, math	1900	x3574
1821C	Tear It Apart brute force, implementation, math, strings	1300	x9923
1821B	Sort the Subarray brute force, greedy	1100	x12944
1821A	Matching combinatorics, math	800	x16073
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x10183
1820A	Yura's New Name implementation, strings	800	x13660
1819F	Willy-nilly, Crack, Into Release! data structures, dp	3500	x87
1819E	Roads in E City interactive, math, probabilities, trees	3200	x163
1819D	Misha and Apples brute force, data structures, dp, two pointers	2800	x446
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1043
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x2600
1819A	Constructive Problem brute force, greedy	1300	x9153
1818B	Indivisible constructive algorithms	900	x10532
1818A	Politics greedy, implementation	800	x10625
1817F	Entangled Substrings string suffix structures, strings	3500	x88
1817E	Half-sum brute force, divide and conquer, greedy	3400	x155
1817D	Toy Machine constructive algorithms, games, implementation	2700	x440
1817C	Similar Polynomials combinatorics, math	2400	x723
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x2724
1817A	Almost Increasing Subsequence binary search, data structures, greedy	1500	x7373

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