Problemset - Codeforces

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constructive algorithms

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Problems

#	Name
1454D	Number into Sequence constructive algorithms, math, number theory	1300	x19742
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19760
1352G	Special Permutation constructive algorithms	1600	x19814
1381A1	Prefix Flip (Easy Version) constructive algorithms, data structures, strings	1300	x19841
1735A	Working Week constructive algorithms, greedy, math	800	x19883
1728B	Best Permutation constructive algorithms, greedy	800	x19917
513A	Game constructive algorithms, math	800	x19928
1515A	Phoenix and Gold constructive algorithms, greedy, math	800	x20009
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x20040
1407A	Ahahahahahahahaha constructive algorithms, math	1100	x20075
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x20081
1758B	XOR = Average constructive algorithms	900	x20110
1715B	Beautiful Array constructive algorithms, greedy, math	1000	x20111
1658A	Marin and Photoshoot constructive algorithms, implementation, math	800	x20131
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x20136
1436B	Prime Square constructive algorithms, math	900	x20215
1496A	Split it! brute force, constructive algorithms, greedy, strings	900	x20272
1375C	Element Extermination constructive algorithms, data structures, greedy	1400	x20437
1644B	Anti-Fibonacci Permutation brute force, constructive algorithms, implementation	800	x20453
1430A	Number of Apartments brute force, constructive algorithms, math	900	x20458
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20495
1684B	Z mod X = C constructive algorithms, math	800	x20606
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x20646
1506D	Epic Transformation constructive algorithms, data structures, greedy	1400	x20723
1713B	Optimal Reduction constructive algorithms, sortings	1000	x20728
1401B	Ternary Sequence constructive algorithms, greedy, math	1100	x20733
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x20759
1860A	Not a Substring constructive algorithms, strings	900	x20790
1632B	Roof Construction bitmasks, constructive algorithms	1000	x20846
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20866
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x20867
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x20890
1405B	Array Cancellation constructive algorithms, implementation	1000	x21015
1499A	Domino on Windowsill combinatorics, constructive algorithms, math	800	x21016
1838A	Blackboard List constructive algorithms, math	800	x21056
798A	Mike and palindrome brute force, constructive algorithms, strings	1000	x21057
1780A	Hayato and School constructive algorithms, greedy	800	x21071
1837C	Best Binary String constructive algorithms, greedy	1000	x21097
1879B	Chips on the Board constructive algorithms, greedy	900	x21150
1716B	Permutation Chain constructive algorithms, math	800	x21192
1620A	Equal or Not Equal constructive algorithms, dsu, implementation	800	x21209
1638A	Reverse constructive algorithms, greedy, math	800	x21216
1455B	Jumps constructive algorithms, math	1200	x21234
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21238
1405A	Permutation Forgery constructive algorithms	800	x21241
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21262
1574A	Regular Bracket Sequences constructive algorithms	800	x21304
1504A	Déjà Vu constructive algorithms, strings	800	x21403
1739B	Array Recovery constructive algorithms, greedy, math	1100	x21409
1890A	Doremy's Paint 3 constructive algorithms	800	x21457
1747B	BAN BAN constructive algorithms	900	x21592
1512D	Corrupted Array constructive algorithms, data structures, greedy	1200	x21698
1433D	Districts Connection constructive algorithms, dfs and similar	1200	x21750
1905A	Constructive Problems constructive algorithms, math	800	x21777
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x21886
300A	Array brute force, constructive algorithms, implementation	1100	x21890
1743B	Permutation Value constructive algorithms, greedy	800	x21931
1774A	Add Plus Minus Sign constructive algorithms, math	800	x21941
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x21946
1511B	GCD Length constructive algorithms, math, number theory	1100	x21962
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x22070
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x22081
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x22204
1365C	Rotation Matching constructive algorithms, data structures, greedy, implementation	1400	x22371
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x22410
1700A	Optimal Path constructive algorithms, greedy, math	800	x22543
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x22563
1367C	Social Distance constructive algorithms, greedy, math	1300	x22603
1772C	Different Differences constructive algorithms, greedy, math	1000	x22686
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x22891
1665A	GCD vs LCM constructive algorithms, math	800	x22952
1828A	Divisible Array constructive algorithms, math	800	x22984
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x23009
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x23042
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23095
1861A	Prime Deletion constructive algorithms, math	800	x23099
1342B	Binary Period constructive algorithms, strings	1100	x23147
1715A	Crossmarket constructive algorithms, greedy, math	800	x23188
1430C	Numbers on Whiteboard constructive algorithms, data structures, greedy, implementation, math	1000	x23324
680B	Bear and Finding Criminals constructive algorithms, implementation	1000	x23410
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23438
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23475
1621A	Stable Arrangement of Rooks constructive algorithms	800	x23543
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x23561
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23591
1419D1	Sage's Birthday (easy version) binary search, constructive algorithms, greedy, sortings	1000	x23598
1699A	The Third Three Number Problem constructive algorithms, math	800	x23645
4B	Before an Exam constructive algorithms, greedy	1200	x23647
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23746
1627A	Not Shading constructive algorithms, implementation	800	x23798
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x23854
1526A	Mean Inequality constructive algorithms, sortings	800	x23858
1844A	Subtraction Game constructive algorithms, games	800	x23865
1391A	Suborrays constructive algorithms, math	800	x24004
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x24025
1333A	Little Artem constructive algorithms	1000	x24146
1525B	Permutation Sort constructive algorithms, greedy	900	x24182
1917A	Least Product constructive algorithms, math	800	x24183
1831A	Twin Permutations constructive algorithms	800	x24217
1841A	Game with Board constructive algorithms, games	800	x24222