Problemset - Codeforces

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Problems

#	Name
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7815
1840E	Character Blocking data structures, hashing, implementation	1600	x8025
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x13725
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x14420
1837D	Bracket Coloring constructive algorithms, greedy	1400	x14708
1835A	k-th equality brute force, implementation, math	1700	x7798
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5356
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x7341
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x11712
1833D	Flipper brute force, constructive algorithms, greedy	1400	x13307
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, trees	1400	x13504
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7715
1829G	Hits Different data structures, dp, implementation, math	1600	x10402
1826D	Running Miles brute force, dp, greedy	1700	x9742
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4570
1824A	LuoTianyi and the Show greedy, implementation	1400	x11282
1822G1	Magic Triples (Easy Version) brute force, data structures, math, number theory	1700	x7024
1822F	Gardening Friends brute force, dfs and similar, dp, graphs, trees	1700	x6115
1822E	Making Anti-Palindromes greedy, math, strings	1600	x10417
1817A	Almost Increasing Subsequence binary search, data structures, greedy	1500	x10998
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10790
1814B	Long Legs brute force, math	1700	x9983
1811E	Living Sequence binary search, dp, math, number theory	1500	x12283
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7476
1810D	Climbing the Tree binary search, math	1700	x7428
1809D	Binary String Sorting constructive algorithms, greedy	1800	x6279
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x12733
1807F	Bouncy Ball brute force, dfs and similar, implementation	1700	x6259
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7599
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x6548
1805C	Place for a Selfie binary search, data structures, geometry, math	1400	x12543
1804C	Pull Your Luck brute force, greedy, math, number theory	1500	x12101
1801B	Buying gifts data structures, greedy, sortings	1800	x6222
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8549
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12776
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12798
1799C	Double Lexicographically Minimum greedy, strings	1700	x5803
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x9814
1798C	Candy Store greedy, math, number theory	1700	x8176
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7618
1796C	Maximum Set binary search, math	1600	x10391
1795D	Triangle Coloring combinatorics, math	1600	x9113
1795C	Tea Tasting binary search, data structures, implementation	1500	x12406
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6121
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x6249
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x14086
1791F	Range Update Point Query binary search, brute force, data structures	1500	x12393
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x15094
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x8546
1787C	Remove the Bracket dp, greedy, math	1600	x7068
1783C	Yet Another Tournament binary search, greedy, sortings	1700	x9285
1781D	Many Perfect Squares brute force, math, number theory	1800	x5490
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7584
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4929
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7895
1779C	Least Prefix Sum data structures, greedy	1600	x12374
1778C	Flexible String bitmasks, brute force, strings	1600	x8202
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x8499
1776L	Controllers binary search, math	1500	x6004
1776F	Train Splitting constructive algorithms, graphs, greedy	1700	x3445
1775D	Friendly Spiders dfs and similar, graphs, math, number theory, shortest paths	1800	x6255
1775C	Interesting Sequence bitmasks, math	1600	x10425
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7848
1774B	Coloring constructive algorithms, greedy, math	1500	x12235
1773E	Easy Assembly greedy, sortings	1400	x4863
1772E	Permutation Game games	1700	x6757
1772D	Absolute Sorting constructive algorithms, math	1400	x15871
1771C	Hossam and Trainees greedy, math, number theory	1600	x9674
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x14327
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x8525
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x382
1769B2	Копирование файлов II *special problem, binary search, brute force, math	1400	x874
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x7144
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9874
1766D	Lucky Chains math, number theory	1600	x8881
1765N	Number Reduction greedy	1500	x4753
1765K	Torus Path greedy, math	1500	x5784
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x4148
1764C	Doremy's City Construction graphs, greedy	1400	x9393
1762C	Binary Strings are Fun combinatorics, math	1400	x9158
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9568
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x7331
1760F	Quests binary search, greedy, sortings	1500	x12173
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3910
1759E	The Humanoid brute force, dp, sortings	1500	x10767
1759D	Make It Round brute force, number theory	1400	x13533
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x7288
1758C	Almost All Multiples greedy, number theory	1400	x13605
1753B	Factorial Divisibility math, number theory	1600	x12726
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x10304
1750D	Count GCD combinatorics, math, number theory	1800	x5866
1750C	Complementary XOR constructive algorithms, implementation	1400	x9535
1749C	Number Game binary search, data structures, games, greedy, implementation	1400	x13916
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x11084
1748B	Diverse Substrings brute force, implementation, strings	1400	x15006
1744E1	Divisible Numbers (easy version) brute force, math, number theory	1500	x10835
1743D	Problem with Random Tests brute force, dp, greedy, probabilities	1700	x7584
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x10705
1742F	Smaller constructive algorithms, greedy, strings	1500	x11629
1741E	Sending a Sequence Over the Network dp	1600	x12188