Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
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Problems

#	Name
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x19439
1826B	Lunatic Never Content math, number theory	1100	x18152
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x15403
1825B	LuoTianyi and the Table greedy, math	1000	x14795
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x19743
1823B	Sort with Step brute force, math, sortings	900	x16160
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x16234
1822D	Super-Permutation constructive algorithms, math	1200	x16951
1822C	Bun Lover math	800	x23169
1822B	Karina and Array greedy, math, sortings	800	x24949
1822A	TubeTube Feed brute force, implementation	800	x24452
1821B	Sort the Subarray brute force, greedy	1100	x19011
1821A	Matching combinatorics, math	800	x19977
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x15089
1820A	Yura's New Name implementation, strings	800	x16803
1818B	Indivisible constructive algorithms	900	x15158
1818A	Politics greedy, implementation	800	x13048
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x15402
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17684
1814A	Coins implementation, math	800	x29934
1811C	Restore the Array constructive algorithms, greedy	1100	x20115
1811B	Conveyor Belts implementation, math	1000	x20553
1811A	Insert Digit greedy, math, strings	800	x31356
1810B	Candies constructive algorithms, math, number theory	800	x17657
1810A	Beautiful Sequence brute force, greedy	800	x20849
1809B	Points on Plane binary search, greedy, math	1000	x20147
1809A	Garland implementation	800	x24071
1808B	Playing in a Casino math, sortings	1200	x17493
1808A	Lucky Numbers brute force, implementation	900	x18454
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x19754
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x19327
1807D	Odd Queries data structures, implementation	900	x34196
1807C	Find and Replace greedy, implementation, strings	800	x30866
1807B	Grab the Candies greedy	800	x42688
1807A	Plus or Minus implementation	800	x64159
1806B	Mex Master constructive algorithms, greedy	900	x18022
1806A	Walking Master geometry, greedy, math	800	x25672
1805B	The String Has a Target greedy, strings	800	x18729
1805A	We Need the Zero bitmasks, brute force	800	x24354
1804B	Vaccination greedy, implementation	1000	x14338
1804A	Lame King greedy, math	800	x18019
1802B	Settlement of Guinea Pigs greedy, implementation, math	1000	x13437
1802A	Likes greedy, implementation	800	x15945
1800D	Remove Two Letters data structures, greedy, hashing, strings	1200	x24126
1800C2	Powering the Hero (hard version) data structures, greedy	1100	x22976
1800C1	Powering the Hero (easy version) data structures, greedy	1000	x24004
1800B	Count the Number of Pairs greedy, strings	1000	x25449
1800A	Is It a Cat? implementation, strings	800	x31869
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x11464
1799A	Recent Actions data structures, greedy, implementation, math	800	x11643
1798B	Three Sevens brute force, data structures, greedy, implementation	1000	x16802
1798A	Showstopper greedy, implementation, sortings	800	x19963
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x16387
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17610
1796B	Asterisk-Minor Template implementation, strings	1000	x16664
1796A	Typical Interview Problem brute force, implementation, strings	800	x18911
1795B	Ideal Point brute force, geometry, greedy	900	x22207
1795A	Two Towers brute force, implementation, strings	800	x23710
1794B	Not Dividing constructive algorithms, greedy, math	900	x23217
1794A	Prefix and Suffix Array strings	800	x17256
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x21057
1793B	Fedya and Array constructive algorithms, math	1100	x15933
1793A	Yet Another Promotion greedy, math	800	x18130
1792B	Stand-up Comedian greedy, math	1200	x21625
1792A	GamingForces greedy, sortings	800	x28367
1791G1	Teleporters (Easy Version) greedy, sortings	1100	x23310
1791E	Negatives and Positives dp, greedy, sortings	1100	x29199
1791D	Distinct Split brute force, greedy, strings	1000	x31648
1791C	Prepend and Append implementation, two pointers	800	x47004
1791B	Following Directions geometry, implementation	800	x45103
1791A	Codeforces Checking implementation, strings	800	x62389
1790D	Matryoshkas data structures, greedy, sortings	1200	x20799
1790C	Premutation brute force, implementation, math	1000	x24247
1790B	Taisia and Dice greedy, greedy, math	800	x27590
1790A	Polycarp and the Day of Pi implementation, math, strings	800	x37435
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x16294
1789A	Serval and Mocha's Array brute force, math, number theory	800	x19631
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x20237
1788A	One and Two brute force, implementation, math	800	x31837
1787B	Number Factorization greedy, math, number theory	1100	x13390
1787A	Exponential Equation constructive algorithms, math	800	x19290
1786A2	Alternating Deck (hard version) implementation	800	x11471
1786A1	Non-alternating Deck (easy version) implementation	800	x14103
1784A	Monsters (easy version) brute force, greedy	1000	x15287
1783B	Matrix of Differences constructive algorithms, math	1100	x17919
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x31008
1781B	Going to the Cinema brute force, greedy, sortings	1000	x13598
1781A	Parallel Projection geometry, math	800	x15152
1780B	GCD Partition brute force, greedy, math, number theory	1100	x18478
1780A	Hayato and School constructive algorithms, greedy	800	x21789
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x23726
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x23226
1778A	Flip Flop Sum greedy, implementation	800	x24504
1777B	Emordnilap combinatorics, greedy, math	900	x17649
1777A	Everybody Likes Good Arrays! greedy, math	800	x25209
1776A	Walking Boy greedy	800	x7057
1775A2	Gardener and the Capybaras (hard version) constructive algorithms, greedy	900	x18858
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x19744
1774A	Add Plus Minus Sign constructive algorithms, math	800	x22529
1773F	Football constructive algorithms	800	x4201