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2023 Post World Finals Online ICPC Challenge powered by Huawei
10 days
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Before contest
Codeforces Round 944 (Div. 4)
03:31:13
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combine-tags-by-or
*combine tags by OR
2-sat
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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
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#
Name
1737B
Ela's Fitness and the Luxury Number
binary search
,
implementation
,
math
1300
x9180
1119B
Alyona and a Narrow Fridge
binary search
,
flows
,
greedy
,
sortings
1300
x9835
192A
Funky Numbers
binary search
,
brute force
,
implementation
1300
x10127
1870C
Colorful Table
binary search
,
data structures
,
dp
,
implementation
,
math
,
two pointers
1300
x10724
1807E
Interview
binary search
,
implementation
,
interactive
1300
x11887
1187B
Letters Shop
binary search
,
implementation
,
strings
1300
x11960
1076C
Meme Problem
binary search
,
math
1300
x12095
271B
Prime Matrix
binary search
,
brute force
,
math
,
number theory
1300
x12371
1794C
Scoring Subsequences
binary search
,
greedy
,
math
,
two pointers
1300
x12464
1279B
Verse For Santa
binary search
,
brute force
,
implementation
1300
x13358
1561C
Deep Down Below
binary search
,
greedy
,
sortings
1300
x13512
1913C
Game with Multiset
binary search
,
bitmasks
,
brute force
,
greedy
1300
x13643
1873F
Money Trees
binary search
,
greedy
,
math
,
two pointers
1300
x13845
96B
Lucky Numbers (easy)
binary search
,
bitmasks
,
brute force
1300
x14450
1736C1
Good Subarrays (Easy Version)
binary search
,
data structures
,
schedules
,
two pointers
1300
x14517
1617C
Paprika and Permutation
binary search
,
greedy
,
math
,
sortings
1300
x14570
1217A
Creating a Character
binary search
,
math
1300
x14639
1260B
Obtain Two Zeroes
binary search
,
math
1300
x15100
1612C
Chat Ban
binary search
,
math
1300
x15836
1862D
Ice Cream Balls
binary search
,
combinatorics
,
constructive algorithms
,
math
1300
x16027
1498B
Box Fitting
binary search
,
bitmasks
,
data structures
,
greedy
1300
x16100
1574C
Slay the Dragon
binary search
,
greedy
,
sortings
,
ternary search
1300
x16542
251A
Points on Line
binary search
,
combinatorics
,
two pointers
1300
x16597
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x18201
1927D
Find the Different Ones!
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
two pointers
1300
x18250
1476B
Inflation
binary search
,
brute force
,
greedy
,
math
1300
x19482
1470A
Strange Birthday Party
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1300
x21254
1538C
Number of Pairs
binary search
,
data structures
,
math
,
two pointers
1300
x27012
600B
Queries about less or equal elements
binary search
,
data structures
,
sortings
,
two pointers
1300
x27469
1328B
K-th Beautiful String
binary search
,
brute force
,
combinatorics
,
implementation
,
math
1300
x28148
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x69914
424B
Megacity
binary search
,
greedy
,
implementation
,
sortings
1200
x7340
302B
Eugeny and Play List
binary search
,
implementation
,
two pointers
1200
x7786
732C
Sanatorium
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
1200
x9471
1100C
NN and the Optical Illusion
binary search
,
geometry
,
math
1200
x9723
1011B
Planning The Expedition
binary search
,
brute force
,
implementation
1200
x9806
911B
Two Cakes
binary search
,
brute force
,
implementation
1200
x10955
1951B
Battle Cows
binary search
,
data structures
,
greedy
1200
x11937
1848B
Vika and the Bridge
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
1200
x13368
1763B
Incinerate
binary search
,
brute force
,
data structures
,
implementation
,
math
,
sortings
1200
x13900
743B
Chloe and the sequence
binary search
,
bitmasks
,
constructive algorithms
,
implementation
1200
x14215
1530C
Pursuit
binary search
,
brute force
,
greedy
,
sortings
1200
x14241
1131C
Birthday
binary search
,
greedy
,
sortings
1200
x14546
637B
Chat Order
*special problem
,
binary search
,
constructive algorithms
,
data structures
,
sortings
1200
x15052
1886B
Fear of the Dark
binary search
,
geometry
,
math
1200
x15169
1928B
Equalize
binary search
,
greedy
,
sortings
,
two pointers
1200
x15255
1671C
Dolce Vita
binary search
,
brute force
,
greedy
,
math
1200
x15916
1860B
Fancy Coins
binary search
,
brute force
,
greedy
,
math
1200
x16010
1853B
Fibonaccharsis
binary search
,
brute force
,
math
1200
x16513
1692E
Binary Deque
binary search
,
implementation
,
two pointers
1200
x19962
1221C
Perfect Team
binary search
,
math
1200
x20144
1006C
Three Parts of the Array
binary search
,
data structures
,
two pointers
1200
x20279
1742E
Scuza
binary search
,
greedy
,
math
1200
x21961
1613C
Poisoned Dagger
binary search
1200
x22538
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x29139
474B
Worms
binary search
,
implementation
1200
x44830
1352C
K-th Not Divisible by n
binary search
,
math
1200
x49996
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x71211
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10921
1099B
Squares and Segments
binary search
,
constructive algorithms
,
math
1100
x10982
1884B
Haunted House
binary search
,
greedy
,
math
,
two pointers
1100
x11670
1042A
Benches
binary search
,
implementation
1100
x12508
1904B
Collecting Game
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1100
x12827
1902B
Getting Points
binary search
,
brute force
,
greedy
1100
x13312
1293A
ConneR and the A.R.C. Markland-N
binary search
,
brute force
,
implementation
1100
x14973
166A
Rank List
binary search
,
implementation
,
sortings
1100
x16773
1288A
Deadline
binary search
,
brute force
,
math
,
ternary search
1100
x17880
1426C
Increase and Copy
binary search
,
constructive algorithms
,
math
1100
x19022
1862C
Flower City Fence
binary search
,
data structures
,
implementation
,
sortings
1100
x19648
1850E
Cardboard for Pictures
binary search
,
geometry
,
implementation
,
math
1100
x20857
1873E
Building an Aquarium
binary search
,
sortings
1100
x23010
1669F
Eating Candies
binary search
,
data structures
,
greedy
,
two pointers
1100
x23102
1463A
Dungeon
binary search
,
math
1100
x24455
1676E
Eating Queries
binary search
,
greedy
,
sortings
1100
x24675
1345B
Card Constructions
binary search
,
brute force
,
dp
,
math
1100
x25480
919B
Perfect Number
binary search
,
brute force
,
dp
,
implementation
,
number theory
1100
x26885
1324C
Frog Jumps
binary search
,
data structures
,
dfs and similar
,
greedy
,
implementation
1100
x26920
1366A
Shovels and Swords
binary search
,
greedy
,
math
1100
x28965
1490C
Sum of Cubes
binary search
,
brute force
,
brute force
,
math
1100
x31421
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x33287
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x58448
195A
Let's Watch Football
binary search
,
brute force
,
math
1000
x8481
1725B
Basketball Together
binary search
,
greedy
,
sortings
1000
x11701
1809B
Points on Plane
binary search
,
greedy
,
math
1000
x19038
1195B
Sport Mafia
binary search
,
brute force
,
math
1000
x19132
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x23607
1593C
Save More Mice
binary search
,
greedy
,
greedy
1000
x24016
1744C
Traffic Light
binary search
,
implementation
,
two pointers
1000
x24251
978C
Letters
binary search
,
implementation
,
two pointers
1000
x24390
1474B
Different Divisors
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1000
x26356
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x35023
1138A
Sushi for Two
binary search
,
greedy
,
implementation
900
x17393
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x15877
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x18690
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x21607
1566A
Median Maximization
binary search
,
greedy
,
math
800
x22733
1611B
Team Composition: Programmers and Mathematicians
binary search
,
constructive algorithms
,
math
800
x28447
1915C
Can I Square?
binary search
,
implementation
800
x37563
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70933
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