Problemset - Codeforces

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Codeforces Round 946 (Div. 3)
2 days
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Problems

#	Name
1915A	Odd One Out bitmasks, implementation	800	x50090
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x18299
1914A	Problemsolving Log implementation, strings	800	x29849
1913A	Rating Increase implementation	800	x22337
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x775
1912A	Accumulator Apex data structures, implementation, sortings	1900	x1888
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x588
1910A	Username *special problem, implementation	1100	x1610
1909A	Distinct Buttons implementation, math	800	x15741
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1757
1907B	YetnotherrokenKeoard data structures, implementation, strings	1000	x23393
1907A	Rook implementation	800	x34224
1905D	Cyclic MEX data structures, implementation, math, two pointers	2000	x3516
1904F	Beautiful Tree data structures, dfs and similar, graphs, implementation, trees	2800	x309
1904E	Tree Queries data structures, dfs and similar, graphs, implementation, trees	2500	x828
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x3839
1904A	Forked! brute force, implementation	900	x16013
1902F	Trees and XOR Queries Again data structures, dfs and similar, divide and conquer, graphs, implementation, math, trees	2400	x897
1902D	Robot Queries binary search, data structures, dp, implementation	1900	x3698
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6208
1900F	Local Deletions binary search, data structures, implementation	2800	x260
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x1839
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x22138
1899E	Queue Sort greedy, implementation, sortings	1300	x13972
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x18189
1898A	Milica and String brute force, implementation, strings	800	x15110
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x309
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x653
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x10137
1894A	Secret Sport implementation, strings	800	x18139
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2448
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x11311
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x775
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x16695
1889D	Game of Stacks brute force, dfs and similar, graphs, implementation, trees	3000	x524
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x12076
1886C	Decreasing String implementation, strings	1600	x10284
1884E	Hard Design greedy, implementation, math	2800	x264
1881C	Perfect Square brute force, implementation	1200	x15890
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1185
1878G	wxhtzdy ORO Tree binary search, bitmasks, brute force, data structures, dfs and similar, implementation, trees	2300	x1098
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x15844
1873D	1D Eraser greedy, implementation, two pointers	800	x32806
1873C	Target Practice implementation, math	800	x35576
1873A	Short Sort brute force, implementation	800	x49071
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5826
1872B	The Corridor or There and Back Again greedy, implementation	900	x26692
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6444
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10763
1868F	LIS? data structures, greedy, implementation	3500	x69
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x248
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1080
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2279
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6475
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11203
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5351
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x412
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x252
1864F	Exotic Queries data structures, implementation, sortings	2300	x1316
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19790
1863C	MEX Repetition implementation, math	1100	x13418
1863A	Channel greedy, implementation	800	x17457
1862C	Flower City Fence binary search, data structures, implementation, sortings	1100	x19704
1862A	Gift Carpet dp, greedy, implementation, strings	800	x30884
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1628
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9495
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x265
1857B	Maximum Rounding greedy, implementation, math	1100	x22163
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1317
1856B	Good Arrays implementation, math	900	x23190
1856A	Tales of a Sort implementation	800	x25832
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2942
1851D	Prefix Permutation Sums implementation, math	1300	x14395
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x7550
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11277
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x17301
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x20971
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x32590
1850C	Word on the Paper implementation, strings	800	x41300
1850B	Ten Words of Wisdom implementation, sortings	800	x40557
1850A	To My Critics implementation, sortings	800	x51375
1849A	Morning Sandwich implementation, math	800	x27095
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x745
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13443
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x317
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3606
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2886
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6603
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15430
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26125
1846A	Rudolph and Cut the Rope implementation, math	800	x31420
1845E	Boxes and Balls dp, implementation, math	2500	x1274
1845B	Come Together geometry, implementation, math	900	x20907
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24700
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x645
1844C	Particles dp, greedy, implementation, math	1300	x14876
1841B	Keep it Beautiful implementation	1000	x20607
1840E	Character Blocking data structures, hashing, implementation	1600	x7561
1840A	Cipher Shifer implementation, strings, two pointers	800	x32669
1839A	The Good Array greedy, implementation, math	800	x17111