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2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams)
10:18:34
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combine-tags-by-or
*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
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Status
Standings
Custom test
Problems
#
Name
1816A
Ian Visits Mary
constructive algorithms
,
geometry
,
number theory
800
x17669
1814A
Coins
implementation
,
math
800
x29796
1811A
Insert Digit
greedy
,
math
,
strings
800
x31312
1810B
Candies
constructive algorithms
,
math
,
number theory
800
x17624
1810A
Beautiful Sequence
brute force
,
greedy
800
x20801
1809A
Garland
implementation
800
x24032
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x30728
1807B
Grab the Candies
greedy
800
x42536
1807A
Plus or Minus
implementation
800
x63608
1806A
Walking Master
geometry
,
greedy
,
math
800
x25574
1805B
The String Has a Target
greedy
,
strings
800
x18705
1805A
We Need the Zero
bitmasks
,
brute force
800
x24222
1804A
Lame King
greedy
,
math
800
x18006
1802A
Likes
greedy
,
implementation
800
x15934
1800A
Is It a Cat?
implementation
,
strings
800
x31799
1799A
Recent Actions
data structures
,
greedy
,
implementation
,
math
800
x11636
1798A
Showstopper
greedy
,
implementation
,
sortings
800
x19942
1797A
Li Hua and Maze
constructive algorithms
,
flows
,
graphs
,
greedy
,
implementation
800
x17588
1796A
Typical Interview Problem
brute force
,
implementation
,
strings
800
x18901
1795A
Two Towers
brute force
,
implementation
,
strings
800
x23701
1794A
Prefix and Suffix Array
strings
800
x17245
1793A
Yet Another Promotion
greedy
,
math
800
x18118
1792A
GamingForces
greedy
,
sortings
800
x28344
1791C
Prepend and Append
implementation
,
two pointers
800
x46783
1791B
Following Directions
geometry
,
implementation
800
x45001
1791A
Codeforces Checking
implementation
,
strings
800
x62031
1790B
Taisia and Dice
greedy
,
greedy
,
math
800
x27562
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x37361
1789B
Serval and Inversion Magic
brute force
,
implementation
,
strings
,
two pointers
800
x16279
1789A
Serval and Mocha's Array
brute force
,
math
,
number theory
800
x19562
1788A
One and Two
brute force
,
implementation
,
math
800
x31701
1787A
Exponential Equation
constructive algorithms
,
math
800
x19278
1786A2
Alternating Deck (hard version)
implementation
800
x11464
1786A1
Non-alternating Deck (easy version)
implementation
800
x14091
1783A
Make it Beautiful
constructive algorithms
,
math
,
sortings
800
x30892
1781A
Parallel Projection
geometry
,
math
800
x15132
1780A
Hayato and School
constructive algorithms
,
greedy
800
x21777
1779A
Hall of Fame
constructive algorithms
,
greedy
,
strings
800
x23212
1778A
Flip Flop Sum
greedy
,
implementation
800
x24483
1777A
Everybody Likes Good Arrays!
greedy
,
math
800
x25094
1776A
Walking Boy
greedy
800
x7043
1775A1
Gardener and the Capybaras (easy version)
brute force
,
constructive algorithms
,
implementation
800
x19736
1774A
Add Plus Minus Sign
constructive algorithms
,
math
800
x22516
1773F
Football
constructive algorithms
800
x4183
1772B
Matrix Rotation
brute force
,
implementation
800
x29453
1772A
A+B?
implementation
800
x48839
1769A
Узкая дорога
*special problem
,
math
800
x1971
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x29062
1767B
Block Towers
data structures
,
greedy
,
sortings
800
x20455
1767A
Cut the Triangle
implementation
800
x20641
1766A
Extremely Round
brute force
,
implementation
800
x27288
1765B
Broken Keyboard
greedy
800
x9095
1764A
Doremy's Paint
greedy
800
x16668
1763A
Absolute Maximization
bitmasks
,
constructive algorithms
,
greedy
,
math
800
x15761
1762A
Divide and Conquer
greedy
,
math
,
number theory
800
x19289
1761A
Two Permutations
brute force
,
constructive algorithms
800
x20218
1760C
Advantage
data structures
,
implementation
,
sortings
800
x37691
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x45160
1760A
Medium Number
implementation
,
sortings
800
x61008
1759B
Lost Permutation
math
800
x22340
1759A
Yes-Yes?
implementation
,
strings
800
x30252
1758A
SSeeeeiinngg DDoouubbllee
constructive algorithms
,
strings
800
x25316
1754B
Kevin and Permutation
constructive algorithms
,
greedy
,
math
800
x18979
1754A
Technical Support
greedy
800
x23329
1750B
Maximum Substring
brute force
,
greedy
,
implementation
800
x16262
1750A
Indirect Sort
constructive algorithms
,
implementation
,
math
800
x17099
1749A
Cowardly Rooks
greedy
,
implementation
800
x22394
1748A
The Ultimate Square
math
800
x24162
1747A
Two Groups
constructive algorithms
,
greedy
800
x25035
1746B
Rebellion
constructive algorithms
,
greedy
,
two pointers
800
x17258
1746A
Maxmina
constructive algorithms
,
greedy
800
x19884
1744B
Even-Odd Increments
implementation
,
math
800
x23602
1744A
Number Replacement
greedy
,
implementation
800
x27260
1743B
Permutation Value
constructive algorithms
,
greedy
800
x22292
1743A
Password
brute force
,
combinatorics
,
implementation
,
math
800
x26905
1742B
Increasing
greedy
,
implementation
,
sortings
800
x48540
1742A
Sum
implementation
800
x74804
1741B
Funny Permutation
constructive algorithms
,
math
800
x25538
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x31082
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13780
1740A
Factorise N+M
constructive algorithms
,
number theory
800
x20402
1739A
Immobile Knight
implementation
800
x22858
1738A
Glory Addicts
greedy
,
implementation
,
sortings
800
x13559
1736A
Make A Equal to B
brute force
,
greedy
,
sortings
800
x22915
1735A
Working Week
constructive algorithms
,
greedy
,
math
800
x20340
1734B
Bright, Nice, Brilliant
constructive algorithms
800
x15863
1734A
Select Three Sticks
brute force
,
greedy
,
sortings
800
x21283
1733A
Consecutive Sum
greedy
,
sortings
800
x21034
1731A
Joey Takes Money
greedy
,
math
800
x22684
1730A
Planets
data structures
,
greedy
,
sortings
800
x23172
1729B
Decode String
greedy
,
strings
800
x30287
1729A
Two Elevators
math
800
x40792
1728B
Best Permutation
constructive algorithms
,
greedy
800
x20189
1728A
Colored Balls: Revisited
brute force
,
greedy
,
implementation
,
sortings
800
x24721
1725A
Accumulation of Dominoes
math
800
x9310
1722C
Word Game
data structures
,
implementation
800
x31450
1722B
Colourblindness
implementation
800
x46946
1722A
Spell Check
implementation
800
x51759
1721A
Image
greedy
,
implementation
800
x27105
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x21280
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