Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Contest is running
Codeforces Round 1101 (Div. 2)
00:27:58
→ Filter Problems
Difficulty:
—
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
communication
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
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
1889A
Qingshan Loves Strings 2
constructive algorithms
,
greedy
,
implementation
1300
x15367
1887F
Minimum Segments
constructive algorithms
3400
x247
1887E
Good Colorings
binary search
,
constructive algorithms
,
graphs
,
interactive
3100
x506
1887D
Split
binary search
,
data structures
,
divide and conquer
,
dsu
,
math
,
trees
,
two pointers
2700
x1263
1887C
Minimum Array
binary search
,
brute force
,
constructive algorithms
,
data structures
,
greedy
,
hashing
,
two pointers
2400
x2304
1887B
Time Travel
binary search
,
graphs
,
shortest paths
1900
x3956
1886F
Diamond Theft
data structures
,
greedy
3300
x247
1886E
I Wanna be the Team Leader
bitmasks
,
constructive algorithms
,
dp
,
greedy
,
math
,
sortings
,
two pointers
2400
x1859
1886D
Monocarp and the Set
combinatorics
,
data structures
,
math
2100
x4194
1886C
Decreasing String
implementation
,
strings
1600
x16820
1886B
Fear of the Dark
binary search
,
geometry
,
math
1200
x18076
1886A
Sum of Three
brute force
,
constructive algorithms
,
math
800
x27785
1885A
Deterministic Scheduling for Extended Reality over 5G and Beyond
*special problem
1884E
Hard Design
greedy
,
implementation
,
math
2800
x402
1884D
Counting Rhyme
dp
,
math
,
number theory
2100
x4154
1884C
Medium Design
brute force
,
data structures
,
dp
,
greedy
,
sortings
1700
x7391
1884B
Haunted House
binary search
,
greedy
,
math
,
two pointers
1100
x14767
1884A
Simple Design
brute force
,
greedy
,
math
800
x19188
1883G2
Dances (Hard Version)
binary search
,
greedy
,
sortings
,
two pointers
1900
x6784
1883G1
Dances (Easy version)
binary search
,
greedy
,
two pointers
1400
x19916
1883F
You Are So Beautiful
data structures
1400
x11917
1883E
Look Back
bitmasks
,
greedy
1700
x9970
1883D
In Love
data structures
,
greedy
1500
x14626
1883C
Raspberries
dp
,
math
1000
x51237
1883B
Chemistry
strings
900
x60910
1883A
Morning
math
800
x29387
1882E2
Two Permutations (Hard Version)
constructive algorithms
3100
x379
1882E1
Two Permutations (Easy Version)
brute force
,
constructive algorithms
,
greedy
,
number theory
2400
x1233
1882D
Tree XOR
bitmasks
,
dfs and similar
,
dp
,
greedy
,
trees
1900
x7146
1882C
Card Game
brute force
,
greedy
1500
x14510
1882B
Sets and Union
bitmasks
,
brute force
,
constructive algorithms
,
greedy
1300
x17455
1882A
Increasing Sequence
greedy
800
x27370
1881G
Anya and the Mysterious String
binary search
,
data structures
2000
x2899
1881F
Minimum Maximum Distance
dfs and similar
,
dp
,
graphs
,
shortest paths
,
trees
1700
x9660
1881E
Block Sequence
dp
1500
x24089
1881D
Divide and Equalize
math
,
number theory
1300
x28903
1881C
Perfect Square
brute force
,
implementation
1200
x19323
1881B
Three Threadlets
math
900
x28816
1881A
Don't Try to Count
brute force
,
strings
800
x60973
1879F
Last Man Standing
brute force
,
data structures
,
number theory
2800
x610
1879E
Interactive Game with Coloring
brute force
,
constructive algorithms
,
dfs and similar
,
graphs
,
implementation
,
interactive
,
trees
2400
x1583
1879D
Sum of XOR Functions
bitmasks
,
combinatorics
,
divide and conquer
,
dp
,
math
1700
x10717
1879C
Make it Alternating
combinatorics
,
dp
,
greedy
1300
x27543
1879B
Chips on the Board
constructive algorithms
,
greedy
900
x25121
1879A
Rigged!
greedy
800
x24557
1878G
wxhtzdy ORO Tree
binary search
,
bitmasks
,
brute force
,
data structures
,
dfs and similar
,
implementation
,
trees
2300
x1468
1878F
Vasilije Loves Number Theory
brute force
,
math
,
number theory
1900
x4955
1878E
Iva & Pav
binary search
,
bitmasks
,
data structures
,
greedy
1400
x21339
1878D
Reverse Madness
data structures
,
greedy
1600
x10156
1878C
Vasilije in Cacak
math
900
x58798
1878B
Aleksa and Stack
constructive algorithms
,
math
800
x34296
1878A
How Much Does Daytona Cost?
greedy
800
x80407
1877C
Joyboard
math
,
number theory
1200
x12881
1877A
Goals of Victory
math
800
x53749
1876G
Clubstep
binary search
,
brute force
,
data structures
,
greedy
,
trees
3500
x281
1876F
Indefinite Clownfish
binary search
,
graphs
3500
x186
1876E
Ball-Stackable
constructive algorithms
,
data structures
,
dp
,
trees
3300
x350
1876D
Lexichromatography
combinatorics
,
dfs and similar
,
dsu
,
graphs
,
two pointers
2500
x1050
1876C
Autosynthesis
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
sortings
2100
x2726
1876B
Effects of Anti Pimples
combinatorics
,
number theory
,
sortings
1500
x10068
1876A
Helmets in Night Light
greedy
,
sortings
1000
x35746
1875D
Jellyfish and Mex
dp
1600
x11489
1875C
Jellyfish and Green Apple
bitmasks
,
greedy
,
math
,
number theory
1400
x13929
1875A
Jellyfish and Undertale
brute force
,
greedy
900
x48029
1874G
Jellyfish and Inscryption
dp
3500
x159
1874F
Jellyfish and OEIS
dp
3500
x477
1874E
Jellyfish and Hack
dp
,
math
3000
x584
1874D
Jellyfish and Miku
divide and conquer
,
dp
,
math
,
probabilities
2800
x946
1874C
Jellyfish and EVA
dp
,
graphs
,
greedy
,
math
,
probabilities
2300
x2202
1874B
Jellyfish and Math
bitmasks
,
brute force
,
dfs and similar
,
dp
,
graphs
,
shortest paths
2400
x1398
1874A
Jellyfish and Game
brute force
,
games
,
greedy
,
implementation
1200
x19447
1873H
Mad City
dfs and similar
,
dsu
,
games
,
graphs
,
shortest paths
,
trees
1700
x9588
1873G
ABBC or BACB
constructive algorithms
,
greedy
1500
x16979
1873F
Money Trees
binary search
,
greedy
,
math
,
two pointers
1300
x19835
1873E
Building an Aquarium
binary search
,
sortings
1100
x44441
1873D
1D Eraser
greedy
,
implementation
,
two pointers
800
x43293
1873C
Target Practice
implementation
,
math
800
x71391
1873B
Good Kid
brute force
,
greedy
,
math
800
x63135
1873A
Short Sort
brute force
,
implementation
800
x71960
1872G
Replace With Product
brute force
,
greedy
,
math
2000
x5056
1872F
Selling a Menagerie
dfs and similar
,
dsu
,
graphs
,
implementation
,
math
1800
x7568
1872E
Data Structures Fan
binary search
,
bitmasks
,
data structures
,
dp
1500
x21684
1872D
Plus Minus Permutation
math
1200
x39497
1872C
Non-coprime Split
math
,
number theory
1100
x26489
1872B
The Corridor or There and Back Again
greedy
,
implementation
900
x30578
1872A
Two Vessels
brute force
,
greedy
,
math
800
x43314
1870H
Standard Graph Problem
data structures
,
graphs
,
greedy
,
trees
3500
x122
1870G
MEXanization
data structures
3300
x397
1870F
Lazy Numbers
binary search
,
math
2900
x563
1870E
Another MEX Problem
bitmasks
,
brute force
,
dp
,
shortest paths
2300
x2976
1870D
Prefix Purchase
greedy
,
implementation
,
sortings
1800
x8062
1870C
Colorful Table
binary search
,
data structures
,
dp
,
implementation
,
math
,
two pointers
1300
x13147
1870B
Friendly Arrays
bitmasks
,
greedy
,
math
1200
x16249
1870A
MEXanized Array
constructive algorithms
,
greedy
,
math
800
x20259
1869B
2D Traveling
geometry
,
math
,
shortest paths
,
sortings
1100
x26217
1869A
Make It Zero
constructive algorithms
900
x40945
1868F
LIS?
data structures
,
greedy
,
implementation
3500
x98
1868E
Min-Sum-Max
constructive algorithms
,
dp
,
greedy
3500
x113
1868D
Flower-like Pseudotree
constructive algorithms
,
graphs
,
greedy
,
implementation
,
trees
3000
x383
1868C
Travel Plan
combinatorics
,
dp
,
implementation
,
math
,
trees
2400
x1377
←
1
2
...
21
22
23
24
25
...
112
113
→
User lists
Name