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2023 Post World Finals Online ICPC Challenge powered by Huawei
29:29:06
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dp
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
1906E
Merge Not Sort
constructive algorithms
,
dp
1900
x1289
1905E
One-X
combinatorics
,
dfs and similar
,
dp
,
math
,
trees
2400
x844
1904B
Collecting Game
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1100
x12770
1903D2
Maximum And Queries (hard version)
bitmasks
,
divide and conquer
,
dp
,
greedy
2500
x703
1902D
Robot Queries
binary search
,
data structures
,
dp
,
implementation
1900
x3653
1901E
Compressed Tree
dfs and similar
,
dp
,
graphs
,
greedy
,
sortings
,
trees
2200
x1358
1901D
Yet Another Monster Fight
binary search
,
dp
,
greedy
,
implementation
,
math
1700
x6124
1900E
Transitive Graph
dfs and similar
,
dp
,
dsu
,
graphs
,
implementation
2100
x1795
1900D
Small GCD
bitmasks
,
brute force
,
dp
,
math
,
number theory
2000
x3677
1900C
Anji's Binary Tree
dfs and similar
,
dp
,
trees
1300
x10381
1900B
Laura and Operations
dp
,
math
900
x15930
1899C
Yarik and Array
dp
,
greedy
,
two pointers
1100
x18051
1896H2
Cyclic Hamming (Hard Version)
brute force
,
dp
,
fft
,
math
,
number theory
3500
x87
1896H1
Cyclic Hamming (Easy Version)
brute force
,
divide and conquer
,
dp
,
fft
,
math
,
number theory
3400
x78
1895G
Two Characters, Two Colors
binary search
,
data structures
,
dp
,
flows
,
greedy
3100
x170
1895F
Fancy Arrays
combinatorics
,
dp
,
math
,
matrices
2600
x624
1895E
Infinite Card Game
binary search
,
brute force
,
data structures
,
dfs and similar
,
dp
,
dsu
,
games
,
graphs
,
greedy
,
sortings
,
two pointers
2300
x1451
1895C
Torn Lucky Ticket
brute force
,
dp
,
hashing
,
implementation
,
math
1400
x10075
1893E
Cacti Symphony
combinatorics
,
dfs and similar
,
dp
,
graphs
3500
x179
1889F
Doremy's Average Tree
data structures
,
dp
,
greedy
,
trees
3500
x68
1889C2
Doremy's Drying Plan (Hard Version)
data structures
,
dp
2600
x883
1889C1
Doremy's Drying Plan (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
sortings
2000
x2999
1886E
I Wanna be the Team Leader
bitmasks
,
constructive algorithms
,
dp
,
greedy
,
math
,
sortings
,
two pointers
2400
x1330
1884D
Counting Rhyme
dp
,
math
,
number theory
2100
x2797
1884C
Medium Design
brute force
,
data structures
,
dp
,
greedy
,
sortings
1700
x5423
1883C
Raspberries
dp
,
math
1000
x22537
1882D
Tree XOR
bitmasks
,
dfs and similar
,
dp
,
greedy
,
trees
1900
x4963
1881F
Minimum Maximum Distance
dfs and similar
,
dp
,
graphs
,
shortest paths
,
trees
1700
x5965
1881E
Block Sequence
dp
1500
x11620
1879D
Sum of XOR Functions
bitmasks
,
combinatorics
,
divide and conquer
,
dp
,
math
1700
x6562
1879C
Make it Alternating
combinatorics
,
dp
,
greedy
1300
x14862
1876E
Ball-Stackable
constructive algorithms
,
data structures
,
dp
,
trees
3300
x225
1875D
Jellyfish and Mex
dp
1600
x7551
1874G
Jellyfish and Inscryption
dp
3500
x72
1874F
Jellyfish and OEIS
dp
3500
x152
1874E
Jellyfish and Hack
dp
,
math
3000
x266
1874D
Jellyfish and Miku
divide and conquer
,
dp
,
math
,
probabilities
2800
x647
1874C
Jellyfish and EVA
dp
,
graphs
,
greedy
,
math
,
probabilities
2300
x1502
1874B
Jellyfish and Math
bitmasks
,
brute force
,
dfs and similar
,
dp
,
graphs
,
shortest paths
2400
x1061
1872E
Data Structures Fan
binary search
,
bitmasks
,
data structures
,
dp
1500
x11881
1870E
Another MEX Problem
bitmasks
,
brute force
,
dp
,
shortest paths
2300
x2202
1870C
Colorful Table
binary search
,
data structures
,
dp
,
implementation
,
math
,
two pointers
1300
x10702
1868E
Min-Sum-Max
constructive algorithms
,
dp
,
greedy
3500
x73
1868C
Travel Plan
combinatorics
,
dp
,
implementation
,
math
,
trees
2400
x1068
1868B2
Candy Party (Hard Version)
bitmasks
,
constructive algorithms
,
dp
,
greedy
,
implementation
,
math
2100
x2269
1866M
Mighty Rock Tower
brute force
,
combinatorics
,
dp
,
math
,
probabilities
2400
x687
1866K
Keen Tree Calculation
binary search
,
data structures
,
dp
,
geometry
,
graphs
,
implementation
,
trees
2500
x406
1866J
Jackets and Packets
dp
2800
x266
1866I
Imagination Castle
dp
,
games
,
two pointers
2300
x668
1866G
Grouped Carriages
binary search
,
data structures
,
dp
,
flows
,
greedy
2100
x1502
1866E
Elevators of Tamem
dp
2700
x267
1866D
Digital Wallet
dp
,
greedy
2300
x1180
1866C
Completely Searching for Inversions
dfs and similar
,
dp
,
graphs
1900
x2835
1864H
Asterism Stream
dp
,
math
,
matrices
3200
x269
1864D
Matrix Cascade
brute force
,
constructive algorithms
,
data structures
,
dp
,
greedy
,
math
1700
x6319
1863I
Redundant Routes
constructive algorithms
,
dp
,
trees
3500
x69
1863H
Goldberg Machine 3
dp
,
trees
3500
x71
1863G
Swaps
combinatorics
,
dp
,
graphs
,
math
2800
x556
1863F
Divide, XOR, and Conquer
bitmasks
,
dp
,
math
2600
x1027
1863E
Speedrun
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
math
,
sortings
,
two pointers
2100
x2606
1862F
Magic Will Save the World
binary search
,
bitmasks
,
brute force
,
dp
1800
x5643
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30660
1861E
Non-Intersecting Subpermutations
combinatorics
,
dp
,
implementation
,
math
2300
x1610
1861D
Sorting By Multiplication
dp
,
greedy
1800
x6248
1861B
Two Binary Strings
constructive algorithms
,
dp
,
greedy
1000
x20047
1860D
Balanced String
dp
2200
x2779
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12383
1859E
Maximum Monogonosity
brute force
,
dp
,
math
2500
x1662
1859D
Andrey and Escape from Capygrad
binary search
,
data structures
,
dp
,
dsu
,
greedy
,
sortings
1800
x6524
1859C
Another Permutation Problem
brute force
,
dp
,
greedy
,
math
1200
x16276
1858D
Trees and Segments
brute force
,
data structures
,
dp
,
greedy
,
two pointers
2200
x2688
1858B
The Walkway
brute force
,
dp
,
greedy
,
math
,
number theory
1500
x10606
1856E2
PermuTree (hard version)
bitmasks
,
dfs and similar
,
dp
,
fft
,
greedy
,
implementation
,
math
,
trees
2700
x1304
1856E1
PermuTree (easy version)
dfs and similar
,
dp
,
trees
1800
x4890
1856C
To Become Max
binary search
,
brute force
,
data structures
,
dp
1600
x11020
1854F
Mark and Spaceship
brute force
,
dp
3500
x111
1854E
Game Bundles
brute force
,
constructive algorithms
,
dp
,
greedy
,
math
3000
x379
1854C
Expected Destruction
combinatorics
,
dp
,
math
,
probabilities
2500
x1393
1854B
Earn or Unlock
bitmasks
,
brute force
,
dp
2200
x3328
1852F
Panda Meetups
data structures
,
dp
,
flows
3500
x98
1852D
Miriany and Matchstick
constructive algorithms
,
dp
,
greedy
2800
x426
1852C
Ina of the Mountain
data structures
,
dp
,
greedy
,
math
2400
x1454
1851E
Nastya and Potions
dfs and similar
,
dp
,
graphs
,
sortings
1500
x9414
1849E
Max to the Right of Min
binary search
,
data structures
,
divide and conquer
,
dp
,
dsu
,
two pointers
2300
x1494
1848F
Vika and Wiki
binary search
,
bitmasks
,
combinatorics
,
divide and conquer
,
dp
,
math
2400
x1448
1847C
Vampiric Powers, anyone?
bitmasks
,
brute force
,
dp
,
greedy
1400
x12199
1846G
Rudolf and CodeVid-23
bitmasks
,
dp
,
graphs
,
greedy
,
shortest paths
1900
x4037
1846C
Rudolf and the Another Competition
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1200
x17917
1845F
Swimmers in the Pool
dp
,
fft
,
math
,
number theory
2800
x353
1845E
Boxes and Balls
dp
,
implementation
,
math
2500
x1260
1845D
Rating System
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
math
,
two pointers
1800
x7297
1845C
Strong Password
binary search
,
dp
,
greedy
,
strings
1400
x13301
1844H
Multiple of Three Cycles
combinatorics
,
data structures
,
dp
,
dsu
,
math
3400
x130
1844C
Particles
dp
,
greedy
,
implementation
,
math
1300
x14803
1843F2
Omsk Metro (hard version)
data structures
,
dfs and similar
,
divide and conquer
,
dp
,
math
,
trees
2300
x1466
1843F1
Omsk Metro (simple version)
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
math
,
trees
1800
x4968
1843D
Apple Tree
combinatorics
,
dfs and similar
,
dp
,
math
,
trees
1200
x17007
1842I
Tenzing and Necklace
divide and conquer
,
dp
,
greedy
3500
x108
1842H
Tenzing and Random Real Numbers
bitmasks
,
dp
,
graphs
,
math
,
probabilities
3000
x559
1842G
Tenzing and Random Operations
combinatorics
,
dp
,
math
,
probabilities
2800
x921
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