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Before contest
Codeforces Round 937 (Div. 4)
03:29:39
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2-sat
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dsu
expression parsing
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greedy
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Problems
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Name
1914B
Preparing for the Contest
constructive algorithms
,
math
800
x27947
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x27938
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x27738
1843B
Long Long
greedy
,
math
,
two pointers
800
x27595
1550A
Find The Array
greedy
,
math
800
x27509
1557A
Ezzat and Two Subsequences
brute force
,
math
,
sortings
800
x27347
1660B
Vlad and Candies
math
800
x27333
1234A
Equalize Prices Again
math
800
x27138
1285A
Mezo Playing Zoma
math
800
x27118
1196A
Three Piles of Candies
brute force
,
constructive algorithms
,
math
800
x26996
1398A
Bad Triangle
geometry
,
math
800
x26889
1853A
Desorting
brute force
,
greedy
,
math
800
x26884
1855A
Dalton the Teacher
greedy
,
math
800
x26874
1849A
Morning Sandwich
implementation
,
math
800
x26699
1421A
XORwice
bitmasks
,
greedy
,
math
800
x26683
1788A
One and Two
brute force
,
implementation
,
math
800
x26617
1783A
Make it Beautiful
constructive algorithms
,
math
,
sortings
800
x26500
1790B
Taisia and Dice
greedy
,
greedy
,
math
800
x26474
1560C
Infinity Table
implementation
,
math
800
x25979
1920A
Satisfying Constraints
brute force
,
greedy
,
math
800
x25959
1455A
Strange Functions
math
,
number theory
800
x25920
1743A
Password
brute force
,
combinatorics
,
implementation
,
math
800
x25842
1674A
Number Transformation
constructive algorithms
,
math
800
x25456
1674B
Dictionary
combinatorics
,
math
800
x25422
1833C
Vlad Building Beautiful Array
greedy
,
math
800
x25327
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x25173
1562A
The Miracle and the Sleeper
greedy
,
math
800
x25135
1517A
Sum of 2050
greedy
,
math
800
x24996
1525A
Potion-making
math
,
number theory
800
x24926
1304A
Two Rabbits
math
800
x24879
1719A
Chip Game
games
,
math
800
x24853
1814A
Coins
implementation
,
math
800
x24779
1741B
Funny Permutation
constructive algorithms
,
math
800
x24587
1388A
Captain Flint and Crew Recruitment
brute force
,
greedy
,
math
,
number theory
800
x24484
1916A
2023
constructive algorithms
,
implementation
,
math
,
number theory
800
x24161
1886A
Sum of Three
brute force
,
constructive algorithms
,
math
800
x24138
1180A
Alex and a Rhombus
dp
,
implementation
,
math
800
x23985
1391A
Suborrays
constructive algorithms
,
math
800
x23949
1646A
Square Counting
math
800
x23885
1822B
Karina and Array
greedy
,
math
,
sortings
800
x23847
1451A
Subtract or Divide
greedy
,
math
800
x23844
1845A
Forbidden Integer
constructive algorithms
,
implementation
,
math
,
number theory
800
x23797
1345A
Puzzle Pieces
math
800
x23768
1917A
Least Product
constructive algorithms
,
math
800
x23718
1514A
Perfectly Imperfect Array
math
,
number theory
800
x23700
1657A
Integer Moves
brute force
,
math
800
x23579
1699A
The Third Three Number Problem
constructive algorithms
,
math
800
x23558
1594A
Consecutive Sum Riddle
math
800
x23544
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23372
1206A
Choose Two Numbers
math
,
sortings
800
x23368
1748A
The Ultimate Square
math
800
x23354
1883A
Morning
math
800
x23315
1901A
Line Trip
greedy
,
math
800
x23314
1102A
Integer Sequence Dividing
math
800
x23145
1715A
Crossmarket
constructive algorithms
,
greedy
,
math
800
x23094
1929B
Sasha and the Drawing
constructive algorithms
,
greedy
,
math
800
x23092
1895A
Treasure Chest
math
800
x23034
1861A
Prime Deletion
constructive algorithms
,
math
800
x22848
1665A
GCD vs LCM
constructive algorithms
,
math
800
x22843
1629B
GCD Arrays
greedy
,
math
,
number theory
800
x22828
1828A
Divisible Array
constructive algorithms
,
math
800
x22745
1744B
Even-Odd Increments
implementation
,
math
800
x22602
1566A
Median Maximization
binary search
,
greedy
,
math
800
x22550
1498A
GCD Sum
brute force
,
math
800
x22477
1700A
Optimal Path
constructive algorithms
,
greedy
,
math
800
x22476
1647A
Madoka and Math Dad
implementation
,
math
800
x22385
1436A
Reorder
math
800
x22347
1492A
Three swimmers
math
800
x22343
1466A
Bovine Dilemma
brute force
,
geometry
,
math
800
x22230
1934A
Too Min Too Max
greedy
,
math
800
x22100
1822C
Bun Lover
math
800
x22098
1731A
Joey Takes Money
greedy
,
math
800
x22060
1774A
Add Plus Minus Sign
constructive algorithms
,
math
800
x21870
294A
Shaass and Oskols
implementation
,
math
800
x21827
1249A
Yet Another Dividing into Teams
math
800
x21758
1452A
Robot Program
math
800
x21746
1806A
Walking Master
geometry
,
greedy
,
math
800
x21582
1064A
Make a triangle!
brute force
,
geometry
,
math
800
x21519
1759B
Lost Permutation
math
800
x21438
1708A
Difference Operations
greedy
,
math
800
x21405
1905A
Constructive Problems
constructive algorithms
,
math
800
x21368
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x21350
1223A
CME
math
800
x21261
1207A
There Are Two Types Of Burgers
brute force
,
greedy
,
implementation
,
math
800
x21222
1061A
Coins
greedy
,
implementation
,
math
800
x21150
1638A
Reverse
constructive algorithms
,
greedy
,
math
800
x21145
1716B
Permutation Chain
constructive algorithms
,
math
800
x21124
1499A
Domino on Windowsill
combinatorics
,
constructive algorithms
,
math
800
x20974
1680A
Minimums and Maximums
brute force
,
math
800
x20948
1838A
Blackboard List
constructive algorithms
,
math
800
x20927
1945A
Setting up Camp
greedy
,
math
800
x20766
1530A
Binary Decimal
greedy
,
math
800
x20686
1269A
Equation
brute force
,
math
800
x20669
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x20654
1422A
Fence
geometry
,
math
800
x20573
1300A
Non-zero
implementation
,
math
800
x20570
1777A
Everybody Likes Good Arrays!
greedy
,
math
800
x20519
1684B
Z mod X = C
constructive algorithms
,
math
800
x20514
1928A
Rectangle Cutting
geometry
,
math
800
x20483
1615A
Closing The Gap
greedy
,
math
800
x20403
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