Problemset - Codeforces

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Before contest
Codeforces Round 975 (Div. 1)
3 days

Before contest
Codeforces Round 975 (Div. 2)
3 days

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Difficulty: —

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Problems

#	Name
1833C	Vlad Building Beautiful Array greedy, math	800	x26062
1833B	Restore the Weather greedy, sortings	900	x26395
1833A	Musical Puzzle implementation, strings	800	x32549
1832A	New Palindrome strings	800	x25674
1831A	Twin Permutations constructive algorithms	800	x26732
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x28442
1829B	Blank Space implementation	800	x45497
1829A	Love Story implementation, strings	800	x50375
1828B	Permutation Swap math, number theory	900	x22930
1828A	Divisible Array constructive algorithms, math	800	x23612
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x19638
1823B	Sort with Step brute force, math, sortings	900	x16007
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x16126
1822C	Bun Lover math	800	x22942
1822B	Karina and Array greedy, math, sortings	800	x24706
1822A	TubeTube Feed brute force, implementation	800	x24220
1821A	Matching combinatorics, math	800	x19751
1820A	Yura's New Name implementation, strings	800	x16658
1818B	Indivisible constructive algorithms	900	x14927
1818A	Politics greedy, implementation	800	x12948
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17560
1814A	Coins implementation, math	800	x28636
1811A	Insert Digit greedy, math, strings	800	x31028
1810B	Candies constructive algorithms, math, number theory	800	x17476
1810A	Beautiful Sequence brute force, greedy	800	x20684
1809A	Garland implementation	800	x23828
1808A	Lucky Numbers brute force, implementation	900	x18138
1807D	Odd Queries data structures, implementation	900	x32282
1807C	Find and Replace greedy, implementation, strings	800	x30336
1807B	Grab the Candies greedy	800	x41693
1807A	Plus or Minus implementation	800	x61074
1806B	Mex Master constructive algorithms, greedy	900	x17664
1806A	Walking Master geometry, greedy, math	800	x24554
1805B	The String Has a Target greedy, strings	800	x18535
1805A	We Need the Zero bitmasks, brute force	800	x23306
1804A	Lame King greedy, math	800	x17924
1802A	Likes greedy, implementation	800	x15754
1800A	Is It a Cat? implementation, strings	800	x31345
1799A	Recent Actions data structures, greedy, implementation, math	800	x11569
1798A	Showstopper greedy, implementation, sortings	800	x19655
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17407
1796A	Typical Interview Problem brute force, implementation, strings	800	x18830
1795B	Ideal Point brute force, geometry, greedy	900	x22019
1795A	Two Towers brute force, implementation, strings	800	x23578
1794B	Not Dividing constructive algorithms, greedy, math	900	x22164
1794A	Prefix and Suffix Array strings	800	x17135
1793A	Yet Another Promotion greedy, math	800	x18018
1792A	GamingForces greedy, sortings	800	x28039
1791C	Prepend and Append implementation, two pointers	800	x45007
1791B	Following Directions geometry, implementation	800	x44040
1791A	Codeforces Checking implementation, strings	800	x60070
1790B	Taisia and Dice greedy, greedy, math	800	x27349
1790A	Polycarp and the Day of Pi implementation, math, strings	800	x36938
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x16154
1789A	Serval and Mocha's Array brute force, math, number theory	800	x18979
1788A	One and Two brute force, implementation, math	800	x30501
1787A	Exponential Equation constructive algorithms, math	800	x19168
1786A2	Alternating Deck (hard version) implementation	800	x11401
1786A1	Non-alternating Deck (easy version) implementation	800	x14029
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x30044
1781A	Parallel Projection geometry, math	800	x15059
1780A	Hayato and School constructive algorithms, greedy	800	x21673
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x23571
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x23134
1778A	Flip Flop Sum greedy, implementation	800	x24266
1777B	Emordnilap combinatorics, greedy, math	900	x17461
1777A	Everybody Likes Good Arrays! greedy, math	800	x24230
1776A	Walking Boy greedy	800	x6966
1775A2	Gardener and the Capybaras (hard version) constructive algorithms, greedy	900	x18715
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x19639
1774A	Add Plus Minus Sign constructive algorithms, math	800	x22376
1773F	Football constructive algorithms	800	x4084
1772B	Matrix Rotation brute force, implementation	800	x29134
1772A	A+B? implementation	800	x47405
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x22843
1769A	Узкая дорога *special problem, math	800	x1951
1768B	Quick Sort greedy, math	900	x23033
1768A	Greatest Convex greedy, math, number theory	800	x28840
1767B	Block Towers data structures, greedy, sortings	800	x20314
1767A	Cut the Triangle implementation	800	x20531
1766A	Extremely Round brute force, implementation	800	x26410
1765B	Broken Keyboard greedy	800	x8971
1764B	Doremy's Perfect Math Class math, number theory	900	x15827
1764A	Doremy's Paint greedy	800	x16581
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15654
1762A	Divide and Conquer greedy, math, number theory	800	x19024
1761A	Two Permutations brute force, constructive algorithms	800	x19529
1760C	Advantage data structures, implementation, sortings	800	x36906
1760B	Atilla's Favorite Problem greedy, implementation, strings	800	x44274
1760A	Medium Number implementation, sortings	800	x58698
1759B	Lost Permutation math	800	x22195
1759A	Yes-Yes? implementation, strings	800	x29889
1758B	XOR = Average constructive algorithms	900	x21214
1758A	SSeeeeiinngg DDoouubbllee constructive algorithms, strings	800	x25142
1754B	Kevin and Permutation constructive algorithms, greedy, math	800	x18878
1754A	Technical Support greedy	800	x23145
1750B	Maximum Substring brute force, greedy, implementation	800	x16220
1750A	Indirect Sort constructive algorithms, implementation, math	800	x17042
1749B	Death's Blessing greedy	900	x20975
1749A	Cowardly Rooks greedy, implementation	800	x22316