Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round (Div. 2)
5 days

→ Filter Problems

Difficulty: —

constructive algorithms

Add tag

Problems

#	Name
1837D	Bracket Coloring constructive algorithms, greedy		x8409
1837C	Best Binary String constructive algorithms, greedy		x15016
1837A	Grasshopper on a Line constructive algorithms, math		x20335
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x2591
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x3876
1833D	Flipper brute force, constructive algorithms, greedy	1400	x8703
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1216
1831B	Array merging constructive algorithms, greedy		x9537
1831A	Twin Permutations constructive algorithms		x13730
1828A	Divisible Array constructive algorithms, math	800	x17733
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x52
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x154
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x2666
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x12968
1822D	Super-Permutation constructive algorithms, math	1200	x11413
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1027
1818B	Indivisible constructive algorithms	900	x10229
1817D	Toy Machine constructive algorithms, games, implementation	2700	x432
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x2633
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x12154
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x14537
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x123
1815C	Between constructive algorithms, dfs and similar, graphs, greedy	2200	x1376
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x2209
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x7592
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x5164
1811C	Restore the Array constructive algorithms, greedy	1100	x15206
1810B	Candies constructive algorithms, math, number theory	800	x15078
1809D	Binary String Sorting constructive algorithms, greedy	1800	x4465
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x9097
1806C	Sequence Master brute force, constructive algorithms, math	1600	x5699
1806B	Mex Master constructive algorithms, greedy	900	x14372
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x6466
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x8982
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x9237
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x936
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x8614
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x6804
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x5579
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x11537
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x14369
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x845
1794B	Not Dividing constructive algorithms, greedy, math	900	x14796
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x13377
1793B	Fedya and Array constructive algorithms, math	1100	x13210
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x840
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x11090
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1300
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x615
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x13249
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x16049
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x552
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x1795
1787A	Exponential Equation constructive algorithms, math	800	x17255
1784B	Letter Exchange constructive algorithms	1900	x2790
1783B	Matrix of Differences constructive algorithms, math	1100	x15506
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x23378
1781G	Diverse Coloring constructive algorithms, trees	3200	x173
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x5783
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x3795
1780A	Hayato and School constructive algorithms, greedy	800	x19384
1779G	The Game of the Century constructive algorithms, graphs, shortest paths	3000	x247
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1047
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1454
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x6167
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x20542
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x21586
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x1502
1776F	Train Splitting constructive algorithms, graphs, greedy	1700	x2304
1776D	Teamwork constructive algorithms, greedy, math	2800	x264
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x627
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x10293
1775A2	Gardener and the Capybaras (hard version) constructive algorithms, greedy	900	x15783
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x17045
1774H	Maximum Permutation constructive algorithms	3500	x111
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x230
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x6097
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x9961
1774B	Coloring constructive algorithms, greedy, math	1500	x9415
1774A	Add Plus Minus Sign constructive algorithms, math	800	x20511
1773K	King's Puzzle constructive algorithms	1900	x1102
1773J	Jumbled Trees constructive algorithms, math	2900	x75
1773F	Football constructive algorithms	800	x3302
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1149
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x1748
1772D	Absolute Sorting constructive algorithms, math	1400	x11036
1772C	Different Differences constructive algorithms, greedy, math	1000	x19126
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x10018
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x66
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3202
1770B	Koxia and Permutation constructive algorithms	1000	x17252
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x5478
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x11545
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x7909
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x275
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x2974
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x755
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x5360
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x13990
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x64

←