Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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constructive algorithms

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Problems

#	Name
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x23016
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x22949
1665A	GCD vs LCM constructive algorithms, math	800	x22900
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x22865
1828A	Divisible Array constructive algorithms, math	800	x22847
1772C	Different Differences constructive algorithms, greedy, math	1000	x22620
1367C	Social Distance constructive algorithms, greedy, math	1300	x22568
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x22530
1700A	Optimal Path constructive algorithms, greedy, math	800	x22523
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x22334
1365C	Rotation Matching constructive algorithms, data structures, greedy, implementation	1400	x22180
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x22124
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x21979
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x21962
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x21917
1774A	Add Plus Minus Sign constructive algorithms, math	800	x21914
1511B	GCD Length constructive algorithms, math, number theory	1100	x21914
1743B	Permutation Value constructive algorithms, greedy	800	x21887
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x21841
300A	Array brute force, constructive algorithms, implementation	1100	x21830
1905A	Constructive Problems constructive algorithms, math	800	x21684
1433D	Districts Connection constructive algorithms, dfs and similar	1200	x21679
1512D	Corrupted Array constructive algorithms, data structures, greedy	1200	x21630
1747B	BAN BAN constructive algorithms	900	x21530
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x21477
1504A	Déjà Vu constructive algorithms, strings	800	x21382
1739B	Array Recovery constructive algorithms, greedy, math	1100	x21347
1574A	Regular Bracket Sequences constructive algorithms	800	x21274
1405A	Permutation Forgery constructive algorithms	800	x21233
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21206
1455B	Jumps constructive algorithms, math	1200	x21204
1638A	Reverse constructive algorithms, greedy, math	800	x21187
1716B	Permutation Chain constructive algorithms, math	800	x21177
1620A	Equal or Not Equal constructive algorithms, dsu, implementation	800	x21173
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21149
1890A	Doremy's Paint 3 constructive algorithms	800	x21083
1780A	Hayato and School constructive algorithms, greedy	800	x21042
1837C	Best Binary String constructive algorithms, greedy	1000	x21041
1879B	Chips on the Board constructive algorithms, greedy	900	x21033
798A	Mike and palindrome brute force, constructive algorithms, strings	1000	x21019
1838A	Blackboard List constructive algorithms, math	800	x21011
1499A	Domino on Windowsill combinatorics, constructive algorithms, math	800	x21002
1405B	Array Cancellation constructive algorithms, implementation	1000	x20910
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20838
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x20806
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x20797
1632B	Roof Construction bitmasks, constructive algorithms	1000	x20736
1860A	Not a Substring constructive algorithms, strings	900	x20719
1401B	Ternary Sequence constructive algorithms, greedy, math	1100	x20714
1713B	Optimal Reduction constructive algorithms, sortings	1000	x20703
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x20701
1506D	Epic Transformation constructive algorithms, data structures, greedy	1400	x20650
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x20634
1684B	Z mod X = C constructive algorithms, math	800	x20580
1430A	Number of Apartments brute force, constructive algorithms, math	900	x20442
1644B	Anti-Fibonacci Permutation brute force, constructive algorithms, implementation	800	x20428
1375C	Element Extermination constructive algorithms, data structures, greedy	1400	x20398
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20396
1496A	Split it! brute force, constructive algorithms, greedy, strings	900	x20229
1436B	Prime Square constructive algorithms, math	900	x20196
1658A	Marin and Photoshoot constructive algorithms, implementation, math	800	x20122
1407A	Ahahahahahahahaha constructive algorithms, math	1100	x20062
1758B	XOR = Average constructive algorithms	900	x20048
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x20023
1715B	Beautiful Array constructive algorithms, greedy, math	1000	x20010
1515A	Phoenix and Gold constructive algorithms, greedy, math	800	x19994
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x19972
513A	Game constructive algorithms, math	800	x19911
1728B	Best Permutation constructive algorithms, greedy	800	x19900
1735A	Working Week constructive algorithms, greedy, math	800	x19859
1381A1	Prefix Flip (Easy Version) constructive algorithms, data structures, strings	1300	x19823
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19724
1352G	Special Permutation constructive algorithms	1600	x19705
1454D	Number into Sequence constructive algorithms, math, number theory	1300	x19679
1559C	Mocha and Hiking constructive algorithms, graphs	1200	x19643
1902A	Binary Imbalance constructive algorithms	800	x19625
1740A	Factorise N+M constructive algorithms, number theory	800	x19557
1746A	Maxmina constructive algorithms, greedy	800	x19425
1708B	Difference of GCDs constructive algorithms, math	1100	x19416
1512C	A-B Palindrome constructive algorithms, implementation, strings	1200	x19412
1651B	Prove Him Wrong constructive algorithms, greedy	800	x19336
1729C	Jumping on Tiles constructive algorithms, strings	1100	x19332
1794B	Not Dividing constructive algorithms, greedy, math	900	x19309
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x19286
401C	Team constructive algorithms, greedy, implementation	1400	x19243
776B	Sherlock and his girlfriend constructive algorithms, number theory	1200	x19225
1733B	Rule of League constructive algorithms, math	900	x19220
1455C	Ping-pong constructive algorithms, games, math	1100	x19204
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x19181
1513A	Array and Peaks constructive algorithms, implementation	800	x19167
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x19147
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x19134
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19133
1493A	Anti-knapsack constructive algorithms, greedy	800	x19096
1438A	Specific Tastes of Andre constructive algorithms, implementation	800	x19085
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19053
1426C	Increase and Copy binary search, constructive algorithms, math	1100	x19003
1770B	Koxia and Permutation constructive algorithms	1000	x18990
1368B	Codeforces Subsequences brute force, constructive algorithms, greedy, math, strings	1500	x18980
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x18825