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2023 Post World Finals Online ICPC Challenge powered by Huawei
29:03:04
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math
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
#
Name
1956C
Nene's Magical Matrix
constructive algorithms
,
greedy
,
math
1600
x10238
1582D
Vupsen, Pupsen and 0
constructive algorithms
,
math
1600
x10110
1512E
Permutation by Sum
brute force
,
greedy
,
math
1600
x10006
1703G
Good Key, Bad Key
bitmasks
,
brute force
,
dp
,
greedy
,
math
1600
x9979
1796C
Maximum Set
binary search
,
math
1600
x9754
1822E
Making Anti-Palindromes
greedy
,
math
,
strings
1600
x9674
1775C
Interesting Sequence
bitmasks
,
math
1600
x9629
1829G
Hits Different
data structures
,
dp
,
implementation
,
math
1600
x9363
1917C
Watering an Array
brute force
,
greedy
,
implementation
,
math
1600
x9357
1798D
Shocking Arrangement
constructive algorithms
,
greedy
,
math
1600
x9017
1771C
Hossam and Trainees
greedy
,
math
,
number theory
1600
x8979
678C
Joty and Chocolate
implementation
,
math
,
number theory
1600
x8939
1530D
Secret Santa
constructive algorithms
,
flows
,
graphs
,
greedy
,
math
1600
x8885
1921E
Eat the Chip
brute force
,
games
,
greedy
,
math
1600
x8877
1612D
X-Magic Pair
math
,
number theory
1600
x8824
1658D1
388535 (Easy Version)
bitmasks
,
math
1600
x8751
500B
New Year Permutation
dfs and similar
,
dsu
,
graphs
,
greedy
,
math
,
sortings
1600
x8691
1225C
p-binary
bitmasks
,
brute force
,
math
1600
x8640
343A
Rational Resistance
math
,
number theory
1600
x8514
346A
Alice and Bob
games
,
math
,
number theory
1600
x8447
1795D
Triangle Coloring
combinatorics
,
math
1600
x8446
1766D
Lucky Chains
math
,
number theory
1600
x8347
1151D
Stas and the Queue at the Buffet
greedy
,
math
,
sortings
1600
x8205
1660D
Maximum Product Strikes Back
brute force
,
implementation
,
math
,
two pointers
1600
x8125
1615C
Menorah
brute force
,
graphs
,
greedy
,
math
1600
x8039
1165E
Two Arrays and Sum of Functions
greedy
,
math
,
sortings
1600
x7800
1452D
Radio Towers
combinatorics
,
dp
,
math
1600
x7751
1284C
New Year and Permutation
combinatorics
,
math
1600
x7707
888D
Almost Identity Permutations
combinatorics
,
dp
,
math
1600
x7607
603A
Alternative Thinking
dp
,
greedy
,
math
1600
x7543
1928C
Physical Education Lesson
brute force
,
math
,
number theory
1600
x7428
735C
Tennis Championship
combinatorics
,
constructive algorithms
,
greedy
,
math
1600
x7337
1029C
Maximal Intersection
greedy
,
math
,
sortings
1600
x7287
1806C
Sequence Master
brute force
,
constructive algorithms
,
math
1600
x7191
785C
Anton and Fairy Tale
binary search
,
math
1600
x7184
1238C
Standard Free2play
dp
,
greedy
,
math
1600
x7099
1957C
How Does the Rook Move?
combinatorics
,
dp
,
math
1600
x7074
817C
Really Big Numbers
binary search
,
brute force
,
dp
,
math
1600
x7038
1811D
Umka and a Long Flight
constructive algorithms
,
implementation
,
math
1600
x7021
1059C
Sequence Transformation
constructive algorithms
,
math
1600
x6973
1932E
Final Countdown
implementation
,
math
,
number theory
1600
x6728
1787C
Remove the Bracket
dp
,
greedy
,
math
1600
x6695
750C
New Year and Rating
binary search
,
greedy
,
math
1600
x6488
495B
Modular Equations
math
,
number theory
1600
x6456
71C
Round Table Knights
dp
,
math
,
number theory
1600
x6225
992B
Nastya Studies Informatics
math
,
number theory
1600
x6088
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6032
538C
Tourist's Notes
binary search
,
brute force
,
greedy
,
implementation
,
math
1600
x5760
500C
New Year Book Reading
constructive algorithms
,
greedy
,
implementation
,
math
1600
x5741
525C
Ilya and Sticks
greedy
,
math
,
sortings
1600
x5700
573B
Bear and Blocks
binary search
,
data structures
,
dp
,
math
1600
x5696
1036B
Diagonal Walking v.2
math
1600
x5613
715A
Plus and Square Root
constructive algorithms
,
math
1600
x5543
712C
Memory and De-Evolution
greedy
,
math
1600
x5533
476C
Dreamoon and Sums
math
1600
x5407
741A
Arpa's loud Owf and Mehrdad's evil plan
dfs and similar
,
math
1600
x5394
1085C
Connect Three
implementation
,
math
1600
x5363
1062C
Banh-mi
greedy
,
implementation
,
math
1600
x5311
424C
Magic Formulas
math
1600
x5187
568A
Primes or Palindromes?
brute force
,
implementation
,
math
,
number theory
1600
x4998
534C
Polycarpus' Dice
math
1600
x4925
214B
Hometask
brute force
,
constructive algorithms
,
greedy
,
math
1600
x4882
337C
Quiz
binary search
,
greedy
,
math
,
matrices
,
number theory
1600
x4769
407A
Triangle
brute force
,
geometry
,
implementation
,
math
1600
x4743
353C
Find Maximum
implementation
,
math
,
number theory
1600
x4721
375A
Divisible by Seven
math
,
number theory
1600
x4655
1423K
Lonely Numbers
binary search
,
math
,
number theory
,
two pointers
1600
x4654
405C
Unusual Product
implementation
,
math
1600
x4565
992C
Nastya and a Wardrobe
math
1600
x4509
597A
Divisibility
math
1600
x4411
11B
Jumping Jack
math
1600
x4319
626C
Block Towers
brute force
,
greedy
,
math
,
number theory
1600
x4286
154B
Colliders
math
,
number theory
1600
x4232
340C
Tourist Problem
combinatorics
,
implementation
,
math
1600
x4105
1056B
Divide Candies
math
,
number theory
1600
x4065
150B
Quantity of Strings
combinatorics
,
dfs and similar
,
graphs
,
math
1600
x3951
746C
Tram
constructive algorithms
,
implementation
,
math
1600
x3683
269A
Magical Boxes
greedy
,
math
1600
x3473
444A
DZY Loves Physics
greedy
,
math
1600
x3365
107B
Basketball Team
combinatorics
,
dp
,
math
,
probabilities
1600
x3286
23B
Party
constructive algorithms
,
graphs
,
math
1600
x3197
595B
Pasha and Phone
binary search
,
math
1600
x2894
319A
Malek Dance Club
combinatorics
,
math
1600
x2755
630G
Challenge Pennants
combinatorics
,
math
1600
x2621
272D
Dima and Two Sequences
combinatorics
,
math
,
sortings
1600
x2583
142A
Help Farmer
brute force
,
math
1600
x2563
373B
Making Sequences is Fun
binary search
,
implementation
,
math
1600
x2434
135B
Rectangle and Square
brute force
,
geometry
,
math
1600
x2296
209A
Multicolored Marbles
dp
,
math
1600
x2240
167A
Wizards and Trolleybuses
implementation
,
math
1600
x2011
958E1
Guard Duty (easy)
brute force
,
geometry
,
greedy
,
math
1600
x1469
86A
Reflection
math
1600
x1340
73A
The Elder Trolls IV: Oblivon
greedy
,
math
1600
x1296
139B
Wallpaper
implementation
,
math
1600
x1273
40B
Repaintings
math
1600
x1111
64C
Table
*special problem
,
greedy
,
implementation
,
math
1600
x331
100E
Lamps in a Line
*special problem
,
math
1600
x265
1359C
Mixing Water
binary search
,
math
1700
x13251
1538D
Another Problem About Dividing Numbers
constructive algorithms
,
math
,
number theory
1700
x13030
276D
Little Girl and Maximum XOR
bitmasks
,
dp
,
greedy
,
implementation
,
math
1700
x12952
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