Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 953 (Div. 2)
27:36:06
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

math

Add tag

Problems

#	Name
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x664
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5329
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x647
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5674
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x10329
1895B	Points and Minimum Distance greedy, math, sortings	800	x19828
1895A	Treasure Chest math	800	x23696
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x789
1891D	Suspicious logarithms binary search, brute force, math	1900	x3765
1891B	Deja Vu brute force, math, sortings	1100	x16324
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x6897
1887D	Split binary search, data structures, divide and conquer, dsu, math, trees, two pointers	2700	x832
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1360
1886D	Monocarp and the Set combinatorics, data structures, math	2100	x3375
1886B	Fear of the Dark binary search, geometry, math	1200	x15419
1886A	Sum of Three brute force, constructive algorithms, math	800	x24864
1884E	Hard Design greedy, implementation, math	2800	x268
1884D	Counting Rhyme dp, math, number theory	2100	x2928
1884B	Haunted House binary search, greedy, math, two pointers	1100	x11945
1884A	Simple Design brute force, greedy, math	800	x16692
1883C	Raspberries dp, math	1000	x23752
1883A	Morning math	800	x24354
1881D	Divide and Equalize math, number theory	1300	x15192
1881B	Three Threadlets math	900	x24133
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6837
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3871
1878C	Vasilije in Cacak math	900	x29473
1878B	Aleksa and Stack constructive algorithms, math	800	x30293
1877C	Joyboard math, number theory	1200	x10306
1877A	Goals of Victory math	800	x19905
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11025
1874E	Jellyfish and Hack dp, math	3000	x280
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x664
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1532
1873F	Money Trees binary search, greedy, math, two pointers	1300	x14400
1873C	Target Practice implementation, math	800	x36657
1873B	Good Kid brute force, greedy, math	800	x45654
1872G	Replace With Product brute force, greedy, math	2000	x4061
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5935
1872D	Plus Minus Permutation math	1200	x21666
1872C	Non-coprime Split math, number theory	1100	x22403
1872A	Two Vessels brute force, greedy, math	800	x37797
1870F	Lazy Numbers binary search, math	2900	x466
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10946
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13612
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18663
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x14882
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1098
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2298
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6588
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3580
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x700
1866L	Lihmuf Balling binary search, brute force, math	2400	x663
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7330
1866A	Ambitious Kid math	800	x19003
1864H	Asterism Stream dp, math, matrices	3200	x274
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2487
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6443
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12864
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19920
1863G	Swaps combinatorics, dp, graphs, math	2800	x578
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1047
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2648
1863C	MEX Repetition implementation, math	1100	x13559
1863B	Split Sort greedy, math, sortings	1100	x14739
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2709
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x16330
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1639
1861A	Prime Deletion constructive algorithms, math	800	x23356
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x266
1860B	Fancy Coins binary search, brute force, greedy, math	1200	x16279
1859E	Maximum Monogonosity brute force, dp, math	2500	x1685
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x16484
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x24944
1859A	United We Stand constructive algorithms, math, number theory	800	x30066
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22238
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x10817
1858A	Buttons games, greedy, math	800	x35308
1857F	Sum and Product binary search, data structures, math	1600	x10635
1857E	Power of Points math, sortings	1500	x11702
1857D	Strong Vertices math, sortings, trees	1300	x18125
1857B	Maximum Rounding greedy, implementation, math	1100	x22342
1857A	Array Coloring greedy, math	800	x44654
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1327
1856B	Good Arrays implementation, math	900	x23417
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x24510
1855A	Dalton the Teacher greedy, math	800	x27376
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x386
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1412
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6771
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13550
1853B	Fibonaccharsis binary search, brute force, math	1200	x16750
1853A	Desorting brute force, greedy, math	800	x29190
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1477
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4227
1852A	Ntarsis' Set binary search, math, number theory	1800	x7695
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5447
1851D	Prefix Permutation Sums implementation, math	1300	x14569
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x28900
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11531