Problemset - Codeforces

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Problems

#	Name
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x15518
1932B	Chaya Calendar number theory	1100	x20514
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x15582
1931D	Divisible Pairs combinatorics, math, number theory	1300	x18554
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x14652
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x17162
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x13838
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x21142
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x11718
1926D	Vlad and Division bitmasks, greedy	1300	x15333
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x26262
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x19829
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x13788
1923C	Find B constructive algorithms, greedy	1400	x14899
1923B	Monsters Attack! dp, greedy, implementation	1100	x17552
1922C	Closest Cities greedy, implementation, math	1300	x18309
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x20455
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x21450
1920B	Summation Game games, greedy, math, sortings	1100	x20636
1919C	Grouping Increases data structures, dp, greedy	1400	x18783
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x13841
1917B	Erase First or Second Letter brute force, combinatorics, data structures, dp, strings	1100	x21978
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x17701
1915F	Greetings data structures, divide and conquer, sortings	1500	x13531
1915E	Romantic Glasses data structures, greedy, math	1300	x21367
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x12267
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x12110
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x21433
1914C	Quests greedy, math	1100	x23790
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x14893
1910A	Username *special problem, implementation	1100	x1757
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x11071
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x16772
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x14033
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x20074
1905C	Largest Subsequence greedy, strings	1400	x12195
1905B	Begginer's Zelda greedy, trees	1100	x16303
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x12880
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x15227
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x11828
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12704
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13652
1902B	Getting Points binary search, brute force, greedy	1100	x14349
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x11882
1901B	Chip and Ribbon greedy, math	1100	x14934
1900C	Anji's Binary Tree dfs and similar, dp, trees	1300	x11436
1899E	Queue Sort greedy, implementation, sortings	1300	x15395
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x13460
1899C	Yarik and Array dp, greedy, two pointers	1100	x20958
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x20501
1898B	Milena and Admirer greedy, math	1500	x11803
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9551
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x11057
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x12310
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x13151
1891B	Deja Vu brute force, math, sortings	1100	x17866
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x13090
1886B	Fear of the Dark binary search, geometry, math	1200	x16109
1884B	Haunted House binary search, greedy, math, two pointers	1100	x12628
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x10888
1883F	You Are So Beautiful data structures	1400	x9447
1883D	In Love data structures, greedy	1500	x11428
1882C	Card Game brute force, greedy	1500	x12278
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15362
1881E	Block Sequence dp	1500	x13971
1881D	Divide and Equalize math, number theory	1300	x17046
1881C	Perfect Square brute force, implementation	1200	x17028
1879C	Make it Alternating combinatorics, dp, greedy	1300	x16876
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x12708
1877C	Joyboard math, number theory	1200	x10903
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x8238
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11691
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x16985
1873G	ABBC or BACB constructive algorithms, greedy	1500	x13174
1873F	Money Trees binary search, greedy, math, two pointers	1300	x15416
1873E	Building an Aquarium binary search, sortings	1100	x26481
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x13510
1872D	Plus Minus Permutation math	1200	x23831
1872C	Non-coprime Split math, number theory	1100	x23340
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x11447
1870B	Friendly Arrays bitmasks, greedy, math	1200	x14124
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x16027
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11963
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x11203
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16696
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7708
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13446
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x15339
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9480
1863C	MEX Repetition implementation, math	1100	x13998
1863B	Split Sort greedy, math, sortings	1100	x15243
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x17151
1862C	Flower City Fence binary search, data structures, implementation, sortings	1100	x20754
1860C	Game on Permutation data structures, dp, games, greedy	1400	x13291
1860B	Fancy Coins binary search, brute force, greedy, math	1200	x16893
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x16968
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x11286
1857E	Power of Points math, sortings	1500	x12406
1857D	Strong Vertices math, sortings, trees	1300	x19457
1857C	Assembly via Minimums greedy, sortings	1200	x25916