Problemset - Codeforces

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Codeforces Round (Div. 2)
35:13:05
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Problems

#	Name
1714E	Add Modulo 10 brute force, math, number theory	1400	x15944
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8907
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5562
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10750
1709D	Rorororobot binary search, data structures, greedy, math	1700	x8246
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8675
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x13224
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x6802
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14634
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6220
1705C	Mark and His Unfinished Essay brute force, implementation	1400	x13170
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10357
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x8183
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x12837
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x16357
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x10721
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9593
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x8962
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x14143
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11465
1695C	Zero Path brute force, data structures, dp, graphs, greedy, shortest paths	1700	x10678
1693B	Fake Plastic Trees dfs and similar, dp, greedy, trees	1700	x8274
1692H	Gambling data structures, dp, greedy, math	1700	x7266
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x16845
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5668
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15347
1690F	Shifting String graphs, math, number theory, strings	1700	x6976
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x14873
1689C	Infected Tree dfs and similar, dp, trees	1600	x10934
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x8040
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3547
1687A	The Enchanted Forest brute force, greedy	1600	x10191
1684D	Traps constructive algorithms, greedy, sortings	1700	x9484
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12173
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x14449
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9462
1680C	Binary String binary search, greedy, strings, two pointers	1600	x9737
1679C	Rooks Defenders data structures, implementation	1400	x10098
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6497
1677B	Tokitsukaze and Meeting data structures, implementation, math	1700	x4100
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8294
1676H2	Maximum Crossings (Hard Version) data structures, divide and conquer, sortings	1500	x10432
1676H1	Maximum Crossings (Easy Version) brute force	1400	x13685
1675F	Vlad and Unfinished Business dfs and similar, dp, greedy, trees	1800	x5173
1675E	Replace With the Previous, Minimize dsu, greedy, strings	1500	x10419
1674F	Desktop Rearrangement data structures, greedy, implementation	1800	x4956
1673C	Palindrome Basis brute force, dp, math, number theory	1500	x12314
1672D	Cyclic Rotation constructive algorithms, greedy, implementation, two pointers	1700	x6143
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x7511
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x5026
1670C	Where is the Pizza? data structures, dfs and similar, dsu, graphs, implementation, math	1400	x9768
1666L	Labyrinth dfs and similar, graphs	1800	x3030
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3124
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x8191
1661C	Water the Trees binary search, greedy, math	1700	x9176
1660F1	Promising String (easy version) brute force, implementation, math, strings	1700	x7134
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x7139
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8446
1659C	Line Empire binary search, brute force, dp, greedy, implementation, math	1500	x10133
1658D1	388535 (Easy Version) bitmasks, math	1600	x8931
1658C	Shinju and the Lost Permutation constructive algorithms, math	1700	x9197
1654C	Alice and the Cake data structures, greedy, implementation, sortings	1400	x13338
1651C	Fault-tolerant Network brute force, data structures, implementation	1500	x10597
1648B	Integral Array brute force, constructive algorithms, data structures, math	1800	x6316
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x12237
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13688
1644D	Cross Coloring data structures, implementation, math	1700	x7103
1644C	Increase Subarray Sums brute force, dp, greedy, implementation	1400	x13580
1637D	Yet Another Minimization Problem dp, greedy, math	1800	x7567
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x6138
1634B	Fortune Telling bitmasks, math	1400	x16114
1633D	Make Them Equal dp, greedy	1600	x13542
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12521
1630B	Range and Partition binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5636
1630A	And Matching bitmasks, constructive algorithms	1500	x14328
1628B	Peculiar Movie Preferences greedy, strings	1700	x11381
1628A	Meximum Array binary search, constructive algorithms, greedy, implementation, math, two pointers	1400	x15410
1627C	Not Assigning constructive algorithms, dfs and similar, number theory, trees	1400	x14270
1626C	Monsters And Spells binary search, data structures, dp, greedy, implementation, math, two pointers	1700	x10765
1625C	Road Optimization dp	1700	x10371
1624D	Palindromes Coloring binary search, greedy, sortings, strings	1400	x16624
1623C	Balanced Stone Heaps binary search, greedy	1600	x11626
1622C	Set or Decrease binary search, brute force, greedy, sortings	1600	x12692
1621C	Hidden Permutations dfs and similar, interactive, math	1700	x6820
1621B	Integers Shop data structures, greedy, implementation	1500	x13258
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6469
1619E	MEX and Increments constructive algorithms, data structures, dp, greedy, implementation, math, sortings	1700	x8985
1619D	New Year's Problem binary search, greedy, sortings	1800	x7398
1618E	Singers' Tour constructive algorithms, math	1700	x7063
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4601
1616C	Representative Edges brute force, geometry, implementation, math	1500	x12114
1615C	Menorah brute force, graphs, greedy, math	1600	x8262
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x10095
1612D	X-Magic Pair math, number theory	1600	x8984
1611F	ATM and Students binary search, data structures, two pointers	1800	x6323
1611E1	Escape The Maze (easy version) dfs and similar, greedy, shortest paths, trees, two pointers	1700	x7121
1611D	Weights Assignment For Tree Edges constructive algorithms, trees	1500	x9694
1610C	Keshi Is Throwing a Party binary search, greedy	1600	x11115
1609D	Social Network dsu, graphs, greedy, implementation, trees	1600	x7156
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9622