Problemset - Codeforces

Problems

#	Name
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x10020
1766D	Lucky Chains math, number theory	1600	x9023
1765N	Number Reduction greedy	1500	x4924
1765K	Torus Path greedy, math	1500	x5910
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x4235
1764C	Doremy's City Construction graphs, greedy	1400	x9476
1762C	Binary Strings are Fun combinatorics, math	1400	x9253
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9660
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x7454
1760F	Quests binary search, greedy, sortings	1500	x12433
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3970
1759E	The Humanoid brute force, dp, sortings	1500	x10961
1759D	Make It Round brute force, number theory	1400	x13889
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x7400
1758C	Almost All Multiples greedy, number theory	1400	x13771
1753B	Factorial Divisibility math, number theory	1600	x12986
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x10479
1750D	Count GCD combinatorics, math, number theory	1800	x6003
1750C	Complementary XOR constructive algorithms, implementation	1400	x9621
1749C	Number Game binary search, data structures, games, greedy, implementation	1400	x14095
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x11248
1748B	Diverse Substrings brute force, implementation, strings	1400	x15146
1744E1	Divisible Numbers (easy version) brute force, math, number theory	1500	x11011
1743D	Problem with Random Tests brute force, dp, greedy, probabilities	1700	x7660
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x10921
1742F	Smaller constructive algorithms, greedy, strings	1500	x11895
1741E	Sending a Sequence Over the Network dp	1600	x12589
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4391
1740D	Knowledge Cards constructive algorithms, data structures	1500	x8172
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x11124
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x9164
1738C	Even Number Addicts dp, games, greedy, math	1500	x11298
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5801
1735D	Meta-set brute force, combinatorics, data structures, hashing, math	1700	x5555
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9977
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6377
1733D1	Zero-One (Easy Version) constructive algorithms, greedy, math	1400	x13611
1732D1	Balance (Easy version) brute force, data structures, implementation, number theory	1500	x8771
1732C1	Sheikh (Easy version) binary search, bitmasks, greedy, two pointers	1800	x5992
1731D	Valiant's New Map binary search, brute force, data structures, dp, two pointers	1700	x7244
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x9714
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x12974
1729E	Guess the Cycle Size interactive, probabilities	1800	x7109
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x7334
1728C	Digital Logarithm data structures, greedy, sortings	1400	x16048
1725M	Moving Both Hands dp, graphs, shortest paths	1800	x3176
1725H	Hot Black Hot White constructive algorithms, math	1800	x2654
1725G	Garage binary search, geometry, math	1500	x5939
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x11493
1722F	L-shapes dfs and similar, implementation	1700	x7028
1722E	Counting Rectangles brute force, data structures, dp, implementation	1600	x11028
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x6710
1721C	Min-Max Array Transformation binary search, greedy, two pointers	1400	x13453
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x6059
1719C	Fighting Tournament binary search, data structures, implementation, two pointers	1400	x13342
1718A1	Burenka and Traditions (easy version) dp, greedy	1800	x5844
1715C	Monoblock combinatorics, data structures, implementation, math	1700	x8708
1714G	Path Prefixes binary search, data structures, dfs and similar, trees	1700	x7708
1714E	Add Modulo 10 brute force, math, number theory	1400	x16910
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x9180
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5724
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10975
1709D	Rorororobot binary search, data structures, greedy, math	1700	x8495
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8919
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x13737
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x7038
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x15000
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6381
1705C	Mark and His Unfinished Essay brute force, implementation	1400	x13415
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10841
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x8470
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x13537
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x17357
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x11008
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9836
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x9454
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x14470
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11701
1695C	Zero Path brute force, data structures, dp, graphs, greedy, shortest paths	1700	x11034
1693B	Fake Plastic Trees dfs and similar, dp, greedy, trees	1700	x8570
1692H	Gambling data structures, dp, greedy, math	1700	x7548
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x18131
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5873
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15763
1690F	Shifting String graphs, math, number theory, strings	1700	x7223
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x15340
1689C	Infected Tree dfs and similar, dp, trees	1600	x11389
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x8199
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3680
1687A	The Enchanted Forest brute force, greedy	1600	x10463
1684D	Traps constructive algorithms, greedy, sortings	1700	x9771
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12415
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x14890
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9738
1680C	Binary String binary search, greedy, strings, two pointers	1600	x10036
1679C	Rooks Defenders data structures, implementation	1400	x10420
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6673
1677B	Tokitsukaze and Meeting data structures, implementation, math	1700	x4211
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8511
1676H2	Maximum Crossings (Hard Version) data structures, divide and conquer, sortings	1500	x10922