Problemset - Codeforces

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Codeforces Round 913 (Div. 3)
18:47:32
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constructive algorithms

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Problems

#	Name
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x854
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4367
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x5894
1833D	Flipper brute force, constructive algorithms, greedy	1400	x11738
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1691
1831B	Array merging constructive algorithms, greedy	1000	x16299
1831A	Twin Permutations constructive algorithms	800	x21485
1828A	Divisible Array constructive algorithms, math	800	x21865
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x95
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x320
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x3345
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x15119
1822D	Super-Permutation constructive algorithms, math	1200	x14535
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1272
1818B	Indivisible constructive algorithms	900	x13022
1817D	Toy Machine constructive algorithms, games, implementation	2700	x602
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x3516
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x13926
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x16308
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x195
1815C	Between constructive algorithms, dfs and similar, graphs, greedy	2200	x1721
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x2620
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x9304
1812J	Unmysterious Language *special problem, constructive algorithms, strings		x4873
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x3513
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x3942
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x6461
1811C	Restore the Array constructive algorithms, greedy	1100	x17655
1810B	Candies constructive algorithms, math, number theory	800	x16592
1809D	Binary String Sorting constructive algorithms, greedy	1800	x5389
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x10795
1806C	Sequence Master brute force, constructive algorithms, math	1600	x6705
1806B	Mex Master constructive algorithms, greedy	900	x16208
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x7560
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x10856
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x11068
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1079
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x10146
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x8066
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x6673
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x13211
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x16125
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x980
1794B	Not Dividing constructive algorithms, greedy, math	900	x16992
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x15981
1793B	Fedya and Array constructive algorithms, math	1100	x14524
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x981
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x12938
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1487
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x716
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x15137
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x18084
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x607
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2059
1787A	Exponential Equation constructive algorithms, math	800	x18286
1784B	Letter Exchange constructive algorithms	1900	x3080
1783B	Matrix of Differences constructive algorithms, math	1100	x16580
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x25040
1781G	Diverse Coloring constructive algorithms, trees	3200	x194
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x6438
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4316
1780A	Hayato and School constructive algorithms, greedy	800	x20645
1779G	The Game of the Century constructive algorithms, graphs, shortest paths	3000	x293
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1161
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1630
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x6988
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x22036
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x22397
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x1810
1776F	Train Splitting constructive algorithms, graphs, greedy	1700	x2923
1776D	Teamwork constructive algorithms, greedy, math	2800	x306
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x693
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x11367
1775A2	Gardener and the Capybaras (hard version) constructive algorithms, greedy	900	x17768
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x18910
1774H	Maximum Permutation constructive algorithms	3500	x122
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x295
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x6864
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x10956
1774B	Coloring constructive algorithms, greedy, math	1500	x10628
1774A	Add Plus Minus Sign constructive algorithms, math	800	x21556
1773K	King's Puzzle constructive algorithms	1900	x1299
1773J	Jumbled Trees constructive algorithms, math	2900	x87
1773F	Football constructive algorithms	800	x3717
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1386
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2070
1772D	Absolute Sorting constructive algorithms, math	1400	x13088
1772C	Different Differences constructive algorithms, greedy, math	1000	x21312
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x11481
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x83
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3481
1770B	Koxia and Permutation constructive algorithms	1000	x18291
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x6213
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x12791
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x8790
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x332
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x3617
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x838
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x5919
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x14783