Problemset - Codeforces

→ Pay attention

Contest is running
2023 Post World Finals Online ICPC Challenge powered by Huawei
12 days
Register now »

→ Filter Problems

Difficulty: —

constructive algorithms

Add tag

Problems

#	Name
78B	Easter Eggs constructive algorithms, implementation	1200	x12732
1833D	Flipper brute force, constructive algorithms, greedy	1400	x12678
1650D	Twist the Permutation brute force, constructive algorithms, implementation, math	1300	x12671
1364C	Ehab and Prefix MEXs brute force, constructive algorithms, greedy	1600	x12668
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x12665
1506E	Restoring the Permutation constructive algorithms, implementation	1500	x12596
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12576
1328D	Carousel constructive algorithms, dp, graphs, greedy, math	1800	x12548
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x12538
1421C	Palindromifier constructive algorithms, strings	1400	x12480
11A	Increasing Sequence constructive algorithms, implementation, math	900	x12421
1408A	Circle Coloring constructive algorithms	800	x12394
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12369
1647C	Madoka and Childish Pranks constructive algorithms, greedy	1300	x12364
1473C	No More Inversions constructive algorithms, math	1500	x12361
1746C	Permutation Operations constructive algorithms, greedy, implementation, math	1300	x12348
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x12338
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12305
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12273
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12223
1474C	Array Destruction brute force, constructive algorithms, data structures, greedy, implementation, sortings	1700	x12194
1942B	Bessie and MEX constructive algorithms, math	1100	x12170
680A	Bear and Five Cards constructive algorithms, implementation	800	x12163
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12144
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12039
534A	Exam constructive algorithms, implementation, math	1100	x12021
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12019
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x12004
1523B	Lord of the Values constructive algorithms	1100	x11962
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x11946
1583B	Omkar and Heavenly Tree constructive algorithms, trees	1200	x11936
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x11912
1081A	Definite Game constructive algorithms, math	800	x11885
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11855
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x11835
1174C	Ehab and a Special Coloring Problem constructive algorithms, number theory	1300	x11799
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11746
1873G	ABBC or BACB constructive algorithms, greedy	1500	x11690
779C	Dishonest Sellers constructive algorithms, greedy, sortings	1200	x11628
1221B	Knights constructive algorithms, greedy	1100	x11615
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11614
764B	Timofey and cubes constructive algorithms, implementation	900	x11609
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11581
1774B	Coloring constructive algorithms, greedy, math	1500	x11572
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x11554
1136B	Nastya Is Playing Computer Games constructive algorithms, math	1000	x11529
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11523
1608B	Build the Permutation constructive algorithms, greedy	1200	x11441
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x11400
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11376
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x11368
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11334
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11329
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11306
1481C	Fence Painting brute force, constructive algorithms, greedy	1600	x11292
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x11277
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11255
546D	Soldier and Number Game constructive algorithms, dp, math, number theory	1700	x11231
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11153
225A	Dice Tower constructive algorithms, greedy	1100	x11082
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11038
1003B	Binary String Constructing constructive algorithms	1300	x11038
1581B	Diameter of Graph constructive algorithms, graphs, greedy, math	1200	x11024
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10990
1099B	Squares and Segments binary search, constructive algorithms, math	1100	x10981
1037A	Packets constructive algorithms, greedy, math	1300	x10931
1396B	Stoned Game brute force, constructive algorithms, games, greedy	1800	x10875
743A	Vladik and flights constructive algorithms, greedy, implementation	1200	x10849
441C	Valera and Tubes constructive algorithms, dfs and similar, implementation	1500	x10841
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x10809
1215C	Swap Letters constructive algorithms, greedy	1500	x10809
1742F	Smaller constructive algorithms, greedy, strings	1500	x10797
1065B	Vasya and Isolated Vertices constructive algorithms, graphs	1300	x10758
484A	Bits bitmasks, constructive algorithms	1700	x10694
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10682
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x10666
1966B	Rectangle Filling constructive algorithms, implementation	1100	x10622
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10612
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10598
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10597
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x10571
1091B	New Year and the Treasure Geolocation brute force, constructive algorithms, greedy, implementation	1200	x10545
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x10539
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x10457
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x10404
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x10363
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10359
1393C	Pinkie Pie Eats Patty-cakes constructive algorithms, greedy, math, sortings	1700	x10256
814A	An abandoned sentiment from past constructive algorithms, greedy, implementation, sortings	900	x10246
1063A	Oh Those Palindromes constructive algorithms, strings	1300	x10212
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10177
1438C	Engineer Artem 2-sat, chinese remainder theorem, constructive algorithms, fft, flows	2000	x10161
932A	Palindromic Supersequence constructive algorithms	800	x10134
1582D	Vupsen, Pupsen and 0 constructive algorithms, math	1600	x10122
899A	Splitting in Teams constructive algorithms, greedy, math	800	x10079
625B	War of the Corporations constructive algorithms, greedy, strings	1200	x10075
1144D	Equalize Them All constructive algorithms, greedy	1400	x10051
777A	Shell Game constructive algorithms, implementation, math	1000	x10037
801B	Valued Keys constructive algorithms, greedy, strings	900	x10011
110B	Lucky String constructive algorithms, strings	1100	x9948