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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
4 days
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*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Problems
#
Name
1775A1
Gardener and the Capybaras (easy version)
brute force
,
constructive algorithms
,
implementation
800
x19743
1774A
Add Plus Minus Sign
constructive algorithms
,
math
800
x22528
1773F
Football
constructive algorithms
800
x4198
1772B
Matrix Rotation
brute force
,
implementation
800
x29483
1772A
A+B?
implementation
800
x48996
1771A
Hossam and Combinatorics
combinatorics
,
math
,
sortings
900
x23124
1769A
Узкая дорога
*special problem
,
math
800
x1974
1768B
Quick Sort
greedy
,
math
900
x23300
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x29081
1767B
Block Towers
data structures
,
greedy
,
sortings
800
x20475
1767A
Cut the Triangle
implementation
800
x20657
1766A
Extremely Round
brute force
,
implementation
800
x27391
1765B
Broken Keyboard
greedy
800
x9117
1764B
Doremy's Perfect Math Class
math
,
number theory
900
x16003
1764A
Doremy's Paint
greedy
800
x16674
1763A
Absolute Maximization
bitmasks
,
constructive algorithms
,
greedy
,
math
800
x15774
1762A
Divide and Conquer
greedy
,
math
,
number theory
800
x19311
1761A
Two Permutations
brute force
,
constructive algorithms
800
x20323
1760C
Advantage
data structures
,
implementation
,
sortings
800
x37790
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x45284
1760A
Medium Number
implementation
,
sortings
800
x61243
1759B
Lost Permutation
math
800
x22349
1759A
Yes-Yes?
implementation
,
strings
800
x30279
1758B
XOR = Average
constructive algorithms
900
x21437
1758A
SSeeeeiinngg DDoouubbllee
constructive algorithms
,
strings
800
x25341
1754B
Kevin and Permutation
constructive algorithms
,
greedy
,
math
800
x18983
1754A
Technical Support
greedy
800
x23363
1750B
Maximum Substring
brute force
,
greedy
,
implementation
800
x16278
1750A
Indirect Sort
constructive algorithms
,
implementation
,
math
800
x17125
1749B
Death's Blessing
greedy
900
x21091
1749A
Cowardly Rooks
greedy
,
implementation
800
x22420
1748A
The Ultimate Square
math
800
x24181
1747B
BAN BAN
constructive algorithms
900
x23205
1747A
Two Groups
constructive algorithms
,
greedy
800
x25054
1746B
Rebellion
constructive algorithms
,
greedy
,
two pointers
800
x17302
1746A
Maxmina
constructive algorithms
,
greedy
800
x19889
1744B
Even-Odd Increments
implementation
,
math
800
x23622
1744A
Number Replacement
greedy
,
implementation
800
x27276
1743B
Permutation Value
constructive algorithms
,
greedy
800
x22298
1743A
Password
brute force
,
combinatorics
,
implementation
,
math
800
x26921
1742C
Stripes
implementation
900
x33503
1742B
Increasing
greedy
,
implementation
,
sortings
800
x48715
1742A
Sum
implementation
800
x75257
1741B
Funny Permutation
constructive algorithms
,
math
800
x25556
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x31111
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13788
1740A
Factorise N+M
constructive algorithms
,
number theory
800
x20426
1739A
Immobile Knight
implementation
800
x22868
1738A
Glory Addicts
greedy
,
implementation
,
sortings
800
x13569
1737A
Ela Sorting Books
greedy
,
implementation
,
strings
900
x10178
1736A
Make A Equal to B
brute force
,
greedy
,
sortings
800
x22924
1735B
Tea with Tangerines
greedy
,
math
900
x18305
1735A
Working Week
constructive algorithms
,
greedy
,
math
800
x20353
1734B
Bright, Nice, Brilliant
constructive algorithms
800
x15867
1734A
Select Three Sticks
brute force
,
greedy
,
sortings
800
x21297
1733B
Rule of League
constructive algorithms
,
math
900
x19855
1733A
Consecutive Sum
greedy
,
sortings
800
x21042
1732B
Ugu
brute force
,
dp
,
greedy
,
implementation
900
x15187
1731A
Joey Takes Money
greedy
,
math
800
x22700
1730A
Planets
data structures
,
greedy
,
sortings
800
x23181
1729B
Decode String
greedy
,
strings
800
x30471
1729A
Two Elevators
math
800
x40972
1728B
Best Permutation
constructive algorithms
,
greedy
800
x20189
1728A
Colored Balls: Revisited
brute force
,
greedy
,
implementation
,
sortings
800
x24729
1726A
Mainak and Array
greedy
,
math
900
x22422
1725A
Accumulation of Dominoes
math
800
x9316
1722C
Word Game
data structures
,
implementation
800
x31503
1722B
Colourblindness
implementation
800
x47077
1722A
Spell Check
implementation
800
x51947
1721A
Image
greedy
,
implementation
800
x27121
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x21295
1720A
Burenka Plays with Fractions
math
,
number theory
900
x22528
1719B
Mathematical Circus
constructive algorithms
,
math
800
x18594
1719A
Chip Game
games
,
math
800
x25674
1717A
Madoka and Strange Thoughts
math
,
number theory
800
x19585
1716B
Permutation Chain
constructive algorithms
,
math
800
x21467
1716A
2-3 Moves
greedy
,
math
800
x33189
1715A
Crossmarket
constructive algorithms
,
greedy
,
math
800
x23607
1714C
Minimum Varied Number
greedy
800
x31228
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x30673
1714A
Everyone Loves to Sleep
implementation
,
math
900
x29948
1713A
Traveling Salesman Problem
geometry
,
greedy
,
implementation
800
x22047
1712B
Woeful Permutation
constructive algorithms
,
greedy
,
number theory
800
x21675
1712A
Wonderful Permutation
greedy
,
implementation
800
x24163
1711A
Perfect Permutation
constructive algorithms
800
x25270
1709B
Also Try Minecraft
data structures
,
dp
,
implementation
900
x22970
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x29750
1708A
Difference Operations
greedy
,
math
800
x21842
1706A
Another String Minimization Problem
2-sat
,
constructive algorithms
,
greedy
,
string suffix structures
,
strings
800
x23059
1705B
Mark the Dust Sweeper
constructive algorithms
,
greedy
,
implementation
900
x23142
1705A
Mark the Photographer
greedy
,
sortings
800
x25351
1704A
Two 0-1 Sequences
constructive algorithms
,
greedy
800
x16063
1703C
Cypher
brute force
,
implementation
,
strings
800
x36015
1703B
ICPC Balloons
data structures
,
implementation
800
x50347
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x71703
1702B
Polycarp Writes a String from Memory
greedy
800
x27790
1702A
Round Down the Price
constructive algorithms
800
x35104
1701B
Permutation
greedy
800
x20245
1701A
Grass Field
implementation
800
x26444
1700A
Optimal Path
constructive algorithms
,
greedy
,
math
800
x22954
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