Problemset - Codeforces

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Codeforces Round (Div. 3)
6 days

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Problems

#	Name
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x11895
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x8179
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x8367
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x15128
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x9586
1945D	Seraphim the Owl dp, greedy	1300	x12906
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x8562
1937B	Binary Path dp, greedy, implementation	1300	x13657
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x19001
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10656
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12737
1919C	Grouping Increases data structures, dp, greedy	1400	x17281
1900C	Anji's Binary Tree dfs and similar, dp, trees	1300	x10714
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x10348
1881E	Block Sequence dp	1500	x12259
1879C	Make it Alternating combinatorics, dp, greedy	1300	x15434
1875D	Jellyfish and Mex dp	1600	x7839
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12406
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10957
1860C	Game on Permutation data structures, dp, games, greedy	1400	x12649
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x10830
1856C	To Become Max binary search, brute force, data structures, dp	1600	x11370
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x9641
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12385
1845C	Strong Password binary search, dp, greedy, strings	1400	x13555
1844C	Particles dp, greedy, implementation, math	1300	x15075
1842C	Tenzing and Balls dp	1500	x11955
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, trees	1400	x12709
1829G	Hits Different data structures, dp, implementation, math	1600	x9670
1811E	Living Sequence binary search, dp, math, number theory	1500	x11745
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x8198
1787C	Remove the Bracket dp, greedy, math	1600	x6810
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x11699
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x13317
1769C2	Подкрутка II *special problem, dp	1300	x923
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9555
1766C	Hamiltonian Wall dp, implementation	1300	x13258
1759E	The Humanoid brute force, dp, sortings	1500	x10182
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x9940
1753A1	Make Nonzero Sum (easy version) constructive algorithms, dp, greedy	1300	x14479
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x10655
1741E	Sending a Sequence Over the Network dp	1600	x11149
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x8811
1738C	Even Number Addicts dp, games, greedy, math	1500	x10775
1722E	Counting Rectangles brute force, data structures, dp, implementation	1600	x10248
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8819
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14541
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10193
1703F	Yet Another Problem About Pairs Satisfying an Inequality binary search, data structures, dp, greedy, sortings	1300	x18691
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x16455
1689C	Infected Tree dfs and similar, dp, trees	1600	x10783
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8222
1676G	White-Black Balanced Subtrees dfs and similar, dp, graphs, trees	1300	x14523
1673C	Palindrome Basis brute force, dp, math, number theory	1500	x12097
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17180
1660C	Get an Even String dp, greedy, strings	1300	x18979
1659C	Line Empire binary search, brute force, dp, greedy, implementation, math	1500	x9911
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13457
1644C	Increase Subarray Sums brute force, dp, greedy, implementation	1400	x13471
1633D	Make Them Equal dp, greedy	1600	x13286
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12371
1618D	Array and Operations dp, greedy, math	1300	x18466
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x10001
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9553
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11919
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11901
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x21079
1553D	Backspace dp, greedy, strings, two pointers	1500	x13431
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x13899
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x14005
1538F	Interesting Function binary search, dp, math, number theory	1500	x18597
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12435
1536C	Diluc and Kaeya data structures, dp, hashing, number theory	1500	x13722
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16197
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x12593
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x14080
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x21549
1526B	I Hate 1111 dp, math, number theory	1400	x29255
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x14725
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x18414
1513C	Add One dp, matrices	1600	x13414
1498C	Planar Reflections brute force, data structures, dp	1600	x9343
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x15706
1476C	Longest Simple Cycle dp, graphs, greedy	1600	x11113
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21550
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x10539
1466C	Canine poetry dp, greedy, strings	1300	x17373
1461C	Random Events dp, math, probabilities	1500	x10923
1461B	Find the Spruce brute force, dp, implementation	1400	x12412
1459B	Move and Turn dp, math	1300	x14127
1455D	Sequence and Swaps dp, greedy, sortings	1600	x12047
1452D	Radio Towers combinatorics, dp, math	1600	x7795
1451C	String Equality dp, greedy, hashing, implementation, strings	1400	x15279
1443B	Saving the City dp, greedy, math, sortings	1300	x15571
1420C1	Pokémon Army (easy version) constructive algorithms, dp, greedy	1300	x17175
1418C	Mortal Kombat Tower dp, graphs, greedy, shortest paths	1500	x18615
1415C	Bouncing Ball brute force, dp, implementation	1400	x10699
1408C	Discrete Acceleration binary search, dp, implementation, math, two pointers	1500	x8683
1398C	Good Subarrays data structures, dp, math	1600	x24636
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13611

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