Problemset - Codeforces

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Before contest
Codeforces Round 941 (Div. 1)
4 days

Before contest
Codeforces Round 941 (Div. 2)
4 days

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Problems

#	Name
189A	Cut Ribbon brute force, dp	1300	x62165
455A	Boredom dp	1500	x53952
489C	Given Length and Sum of Digits... dp, greedy, implementation	1400	x44272
550A	Two Substrings brute force, dp, greedy, implementation, strings	1500	x36138
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x28920
1526B	I Hate 1111 dp, math, number theory	1400	x28493
698A	Vacations dp	1400	x28344
550C	Divisibility by Eight brute force, dp, math	1500	x27163
545C	Woodcutters dp, greedy	1500	x26137
431C	k-Tree dp, implementation, trees	1600	x24434
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x24348
1398C	Good Subarrays data structures, dp, math	1600	x24024
1195C	Basketball Exercise dp	1400	x23739
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21159
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x21083
1285B	Just Eat It! dp, greedy, implementation	1300	x20878
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x20788
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x20697
1350B	Orac and Models dp, math, number theory	1400	x20487
166E	Tetrahedron dp, math, matrices	1500	x19863
1380C	Create The Teams brute force, dp, greedy, implementation, sortings	1400	x19845
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x19235
1660C	Get an Even String dp, greedy, strings	1300	x18682
1389C	Good String brute force, dp, greedy, two pointers	1500	x18305
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18276
1037C	Equalize dp, greedy, strings	1300	x18274
1538F	Interesting Function binary search, dp, math, number theory	1500	x18264
1618D	Array and Operations dp, greedy, math	1300	x18220
1418C	Mortal Kombat Tower dp, graphs, greedy, shortest paths	1500	x18048
1703F	Yet Another Problem About Pairs Satisfying an Inequality binary search, data structures, dp, greedy, sortings	1300	x18017
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x17990
676C	Vasya and String binary search, dp, strings, two pointers	1500	x17986
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x17983
538B	Quasi Binary constructive algorithms, dp, greedy, implementation	1400	x17567
1466C	Canine poetry dp, greedy, strings	1300	x17279
1420C1	Pokémon Army (easy version) constructive algorithms, dp, greedy	1300	x16986
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x16916
1245C	Constanze's Machine dp	1400	x16715
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x16708
1919C	Grouping Increases data structures, dp, greedy	1400	x16633
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16036
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x15841
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x15799
1272D	Remove One Element brute force, dp	1500	x15743
1389B	Array Walk brute force, dp, greedy	1600	x15742
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x15723
706C	Hard problem dp, strings	1600	x15577
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x15528
1443B	Saving the City dp, greedy, math, sortings	1300	x15458
1320A	Journey Planning data structures, dp, greedy, math, sortings	1400	x15353
1451C	String Equality dp, greedy, hashing, implementation, strings	1400	x15183
1373D	Maximum Sum on Even Positions divide and conquer, dp, greedy, implementation	1600	x14911
1879C	Make it Alternating combinatorics, dp, greedy	1300	x14760
1844C	Particles dp, greedy, implementation, math	1300	x14741
1108D	Diverse Garland constructive algorithms, dp, greedy	1400	x14678
1391C	Cyclic Permutations combinatorics, dp, graphs, math	1500	x14526
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x14525
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14401
1753A1	Make Nonzero Sum (easy version) constructive algorithms, dp, greedy	1300	x14233
1676G	White-Black Balanced Subtrees dfs and similar, dp, graphs, trees	1300	x14055
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x13907
1459B	Move and Turn dp, math	1300	x13845
1176C	Lose it! dp, greedy, implementation	1300	x13820
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x13790
1178B	WOW Factor dp, strings	1300	x13790
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x13782
1253C	Sweets Eating dp, greedy, math, sortings	1500	x13780
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x13769
1536C	Diluc and Kaeya data structures, dp, hashing, number theory	1500	x13506
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13480
1644C	Increase Subarray Sums brute force, dp, greedy, implementation	1400	x13307
1553D	Backspace dp, greedy, strings, two pointers	1500	x13280
1845C	Strong Password binary search, dp, greedy, strings	1400	x13255
1513C	Add One dp, matrices	1600	x13134
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13078
987C	Three displays brute force, dp, implementation	1400	x13050
1766C	Hamiltonian Wall dp, implementation	1300	x13033
1633D	Make Them Equal dp, greedy	1600	x12923
1937B	Binary Path dp, greedy, implementation	1300	x12810
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x12737
1295C	Obtain The String dp, greedy, strings	1600	x12530
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x12468
1461B	Find the Spruce brute force, dp, implementation	1400	x12343
1860C	Game on Permutation data structures, dp, games, greedy	1400	x12332
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, trees	1400	x12326
1288C	Two Arrays combinatorics, dp	1600	x12252
446A	DZY Loves Sequences dp, implementation, two pointers	1600	x12224
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12215
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12208
1234C	Pipes dp, implementation	1500	x12181
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12158
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12147
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x12055
1215B	The Number of Products combinatorics, dp, implementation	1400	x12029
1276A	As Simple as One and Two dp, greedy	1400	x12023
1455D	Sequence and Swaps dp, greedy, sortings	1600	x11962
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x11844
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11810
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x11766
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11701

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