Problemset - Codeforces

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constructive algorithms

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Problems

#	Name
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x7526
1833D	Flipper brute force, constructive algorithms, greedy	1400	x13464
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1928
1831B	Array merging constructive algorithms, greedy	1000	x21439
1831A	Twin Permutations constructive algorithms	800	x27704
1828A	Divisible Array constructive algorithms, math	800	x23798
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x118
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x421
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x3878
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x16226
1822D	Super-Permutation constructive algorithms, math	1200	x16935
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1500
1818B	Indivisible constructive algorithms	900	x15140
1817D	Toy Machine constructive algorithms, games, implementation	2700	x791
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x4189
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x15394
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17679
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x241
1815C	Between constructive algorithms, dfs and similar, graphs, greedy	2200	x2004
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x3085
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10972
1812J	Unmysterious Language *special problem, constructive algorithms, strings		x5971
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x4026
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4672
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7604
1811C	Restore the Array constructive algorithms, greedy	1100	x20096
1810B	Candies constructive algorithms, math, number theory	800	x17638
1809D	Binary String Sorting constructive algorithms, greedy	1800	x6398
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x12972
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7701
1806B	Mex Master constructive algorithms, greedy	900	x17919
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8673
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x13021
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x13002
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1223
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x11455
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x10193
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7769
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x16362
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17594
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1130
1794B	Not Dividing constructive algorithms, greedy, math	900	x23168
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x21018
1793B	Fedya and Array constructive algorithms, math	1100	x15925
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x1136
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x15336
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1699
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x873
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x17460
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x20208
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x690
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2375
1787A	Exponential Equation constructive algorithms, math	800	x19285
1784B	Letter Exchange constructive algorithms	1900	x3359
1783B	Matrix of Differences constructive algorithms, math	1100	x17860
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x30953
1781G	Diverse Coloring constructive algorithms, trees	3200	x232
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7735
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x5009
1780A	Hayato and School constructive algorithms, greedy	800	x21784
1779G	The Game of the Century constructive algorithms, graphs, shortest paths	3000	x322
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1267
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1802
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7985
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x23719
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x23218
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x2083
1776F	Train Splitting constructive algorithms, graphs, greedy	1700	x3524
1776D	Teamwork constructive algorithms, greedy, math	2800	x372
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x769
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x14157
1775A2	Gardener and the Capybaras (hard version) constructive algorithms, greedy	900	x18852
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x19741
1774H	Maximum Permutation constructive algorithms	3500	x135
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x443
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7979
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x12119
1774B	Coloring constructive algorithms, greedy, math	1500	x12403
1774A	Add Plus Minus Sign constructive algorithms, math	800	x22523
1773K	King's Puzzle constructive algorithms	1900	x1443
1773J	Jumbled Trees constructive algorithms, math	2900	x110
1773F	Football constructive algorithms	800	x4191
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1571
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2409
1772D	Absolute Sorting constructive algorithms, math	1400	x16138
1772C	Different Differences constructive algorithms, greedy, math	1000	x23997
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x14713
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x106
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3891
1770B	Koxia and Permutation constructive algorithms	1000	x19480
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x7263
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x14313
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x10017
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x400
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x4235
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x978
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x6746
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15768
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x102
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x3694