Problemset - Codeforces

Problems

#	Name
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x19780
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19797
1902A	Binary Imbalance constructive algorithms	800	x19859
1381A1	Prefix Flip (Easy Version) constructive algorithms, data structures, strings	1300	x19867
1352G	Special Permutation constructive algorithms	1600	x19900
1735A	Working Week constructive algorithms, greedy, math	800	x19907
1728B	Best Permutation constructive algorithms, greedy	800	x19928
513A	Game constructive algorithms, math	800	x19964
1515A	Phoenix and Gold constructive algorithms, greedy, math	800	x20020
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x20048
1407A	Ahahahahahahahaha constructive algorithms, math	1100	x20093
1658A	Marin and Photoshoot constructive algorithms, implementation, math	800	x20141
1758B	XOR = Average constructive algorithms	900	x20167
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x20191
1715B	Beautiful Array constructive algorithms, greedy, math	1000	x20215
1436B	Prime Square constructive algorithms, math	900	x20240
1957A	Stickogon constructive algorithms, greedy	800	x20262
1496A	Split it! brute force, constructive algorithms, greedy, strings	900	x20300
1644B	Anti-Fibonacci Permutation brute force, constructive algorithms, implementation	800	x20470
1375C	Element Extermination constructive algorithms, data structures, greedy	1400	x20476
1430A	Number of Apartments brute force, constructive algorithms, math	900	x20481
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20581
1684B	Z mod X = C constructive algorithms, math	800	x20622
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x20660
1401B	Ternary Sequence constructive algorithms, greedy, math	1100	x20743
1713B	Optimal Reduction constructive algorithms, sortings	1000	x20751
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x20752
1506D	Epic Transformation constructive algorithms, data structures, greedy	1400	x20795
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x20802
1860A	Not a Substring constructive algorithms, strings	900	x20870
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20882
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x20931
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x20934
1632B	Roof Construction bitmasks, constructive algorithms	1000	x20949
1499A	Domino on Windowsill combinatorics, constructive algorithms, math	800	x21026
1405B	Array Cancellation constructive algorithms, implementation	1000	x21047
1838A	Blackboard List constructive algorithms, math	800	x21091
1780A	Hayato and School constructive algorithms, greedy	800	x21092
798A	Mike and palindrome brute force, constructive algorithms, strings	1000	x21095
1837C	Best Binary String constructive algorithms, greedy	1000	x21165
1716B	Permutation Chain constructive algorithms, math	800	x21203
1638A	Reverse constructive algorithms, greedy, math	800	x21221
1879B	Chips on the Board constructive algorithms, greedy	900	x21239
1405A	Permutation Forgery constructive algorithms	800	x21245
1620A	Equal or Not Equal constructive algorithms, dsu, implementation	800	x21249
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21278
1455B	Jumps constructive algorithms, math	1200	x21281
1574A	Regular Bracket Sequences constructive algorithms	800	x21326
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21377
1504A	Déjà Vu constructive algorithms, strings	800	x21424
1739B	Array Recovery constructive algorithms, greedy, math	1100	x21491
1747B	BAN BAN constructive algorithms	900	x21651
1512D	Corrupted Array constructive algorithms, data structures, greedy	1200	x21766
1890A	Doremy's Paint 3 constructive algorithms	800	x21773
1433D	Districts Connection constructive algorithms, dfs and similar	1200	x21835
1905A	Constructive Problems constructive algorithms, math	800	x21867
300A	Array brute force, constructive algorithms, implementation	1100	x21944
1743B	Permutation Value constructive algorithms, greedy	800	x21957
1774A	Add Plus Minus Sign constructive algorithms, math	800	x22001
1511B	GCD Length constructive algorithms, math, number theory	1100	x22004
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22021
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x22137
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x22224
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x22229
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x22244
1365C	Rotation Matching constructive algorithms, data structures, greedy, implementation	1400	x22416
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x22487
1700A	Optimal Path constructive algorithms, greedy, math	800	x22566
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x22584
1367C	Social Distance constructive algorithms, greedy, math	1300	x22640
1772C	Different Differences constructive algorithms, greedy, math	1000	x22744
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x22905
1665A	GCD vs LCM constructive algorithms, math	800	x23013
1828A	Divisible Array constructive algorithms, math	800	x23047
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x23048
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x23068
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23116
1861A	Prime Deletion constructive algorithms, math	800	x23156
1342B	Binary Period constructive algorithms, strings	1100	x23164
1715A	Crossmarket constructive algorithms, greedy, math	800	x23218
1430C	Numbers on Whiteboard constructive algorithms, data structures, greedy, implementation, math	1000	x23389
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23476
680B	Bear and Finding Criminals constructive algorithms, implementation	1000	x23482
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23500
1621A	Stable Arrangement of Rooks constructive algorithms	800	x23560
1419D1	Sage's Birthday (easy version) binary search, constructive algorithms, greedy, sortings	1000	x23656
1699A	The Third Three Number Problem constructive algorithms, math	800	x23670
4B	Before an Exam constructive algorithms, greedy	1200	x23732
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23772
1627A	Not Shading constructive algorithms, implementation	800	x23817
1526A	Mean Inequality constructive algorithms, sortings	800	x23880
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23881
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x23900
1844A	Subtraction Game constructive algorithms, games	800	x23901
1391A	Suborrays constructive algorithms, math	800	x24017
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x24074
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x24140
1333A	Little Artem constructive algorithms	1000	x24174
1525B	Permutation Sort constructive algorithms, greedy	900	x24218
1841A	Game with Board constructive algorithms, games	800	x24259

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Before contest
Codeforces Round 946 (Div. 3)
03:01:24
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