Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rayan
→ Pay attention
Before contest
Good Bye 2024: 2025 is NEAR
3 days
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
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
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
656B
Scrambled
*special problem
,
implementation
1700
x1658
656A
Da Vinci Powers
*special problem
1900
x3629
653G
Move by Prime
combinatorics
,
math
,
number theory
3100
x563
653F
Paper task
data structures
,
string suffix structures
,
strings
2600
x1002
653E
Bear and Forgotten Tree 2
dfs and similar
,
dsu
,
graphs
,
trees
2400
x1563
653D
Delivery Bears
binary search
,
flows
,
graphs
2200
x2525
653C
Bear and Up-Down
brute force
,
implementation
1900
x1654
653B
Bear and Compressing
brute force
,
dfs and similar
,
dp
,
strings
1300
x5027
653A
Bear and Three Balls
brute force
,
implementation
,
sortings
900
x8283
652F
Ants on a Circle
constructive algorithms
,
math
2800
x559
652E
Pursuit For Artifacts
dfs and similar
,
dsu
,
graphs
,
trees
2300
x2251
652D
Nested Segments
data structures
,
sortings
1800
x4065
652C
Foe Pairs
combinatorics
,
sortings
,
two pointers
1800
x3272
652B
z-sort
sortings
1000
x10411
652A
Gabriel and Caterpillar
implementation
,
math
1400
x4799
651B
Beautiful Paintings
greedy
,
sortings
1200
x11640
651A
Joysticks
dp
,
greedy
,
implementation
,
math
1100
x23113
650E
Clockwork Bomb
data structures
,
dfs and similar
,
dsu
,
greedy
,
trees
3200
x608
650D
Zip-line
binary search
,
data structures
,
dp
,
hashing
2600
x1391
650C
Table Compression
dfs and similar
,
dp
,
dsu
,
graphs
,
greedy
2200
x2035
650B
Image Preview
binary search
,
brute force
,
dp
,
two pointers
1900
x3366
650A
Watchmen
data structures
,
geometry
,
math
1400
x15689
649E
Автобус
binary search
,
data structures
,
greedy
,
sortings
2100
x109
649D
Дефрагментация памяти
constructive algorithms
,
greedy
,
implementation
1600
x371
649C
Печать условий
constructive algorithms
,
greedy
,
sortings
1500
x476
649B
Этажи
constructive algorithms
1400
x557
649A
Любимые числа Поликарпа
constructive algorithms
,
implementation
1000
x1404
648E
Собери число
graphs
,
shortest paths
2300
x133
648D
Собачки и миски
data structures
,
greedy
,
sortings
1900
x257
648C
Путь Робота
constructive algorithms
,
dfs and similar
,
graphs
1100
x1057
648B
Собери стол
constructive algorithms
,
sortings
800
x1625
648A
Наибольший подъем
constructive algorithms
,
implementation
900
x741
645G
Armistice Area Apportionment
binary search
,
geometry
3200
x114
645F
Cowslip Collections
combinatorics
,
math
,
number theory
2500
x807
645E
Intellectual Inquiry
dp
,
greedy
,
strings
2200
x1288
645D
Robot Rapping Results Report
binary search
,
dp
,
graphs
1800
x2944
645C
Enduring Exodus
binary search
,
two pointers
1600
x3359
645B
Mischievous Mess Makers
greedy
,
math
1200
x3425
645A
Amity Assessment
brute force
,
constructive algorithms
,
implementation
1200
x3589
644C
Hostname Aliases
*special problem
,
binary search
,
data structures
,
implementation
,
sortings
,
strings
2100
x922
644B
Processing Queries
*special problem
,
constructive algorithms
,
data structures
,
two pointers
1700
x2710
644A
Parliament of Berland
*special problem
,
constructive algorithms
1000
x4469
643G
Choosing Ads
data structures
3200
x1024
643F
Bears and Juice
dp
,
math
,
meet-in-the-middle
2900
x722
643E
Bear and Destroying Subtrees
dp
,
math
,
probabilities
,
trees
2700
x643
643D
Bearish Fanpages
2900
x317
643C
Levels and Regions
dp
2400
x1407
643B
Bear and Two Paths
constructive algorithms
,
graphs
1600
x3202
643A
Bear and Colors
implementation
1500
x4160
641G
Little Artem and Graph
2300
x91
641F
Little Artem and 2-SAT
3000
x195
641E
Little Artem and Time Machine
data structures
2000
x3345
641D
Little Artem and Random Variable
dp
,
implementation
,
math
,
probabilities
2400
x1363
641C
Little Artem and Dance
brute force
,
constructive algorithms
,
implementation
1800
x3086
641B
Little Artem and Matrix
implementation
1400
x3998
641A
Little Artem and Grasshopper
implementation
1000
x5986
639F
Bear and Chemistry
data structures
,
dfs and similar
,
graphs
,
trees
3300
x428
639E
Bear and Paradox
binary search
,
greedy
,
math
,
sortings
2800
x586
639D
Bear and Contribution
data structures
,
greedy
,
sortings
,
two pointers
2400
x976
639C
Bear and Polynomials
hashing
,
implementation
,
math
2200
x1219
639B
Bear and Forgotten Tree 3
constructive algorithms
,
graphs
,
trees
1600
x6552
639A
Bear and Displayed Friends
implementation
1200
x6168
638D
Three-dimensional Turtle Super Computer
brute force
,
dfs and similar
,
graphs
1800
x723
638C
Road Improvement
*special problem
,
dfs and similar
,
graphs
,
greedy
,
trees
1800
x1702
638B
Making Genome in Berland
*special problem
,
dfs and similar
,
strings
1500
x1977
638A
Home Numbers
*special problem
,
constructive algorithms
,
math
1100
x4063
637D
Running with Obstacles
*special problem
,
data structures
,
dp
,
greedy
1600
x2037
637C
Promocodes with Mistakes
*special problem
,
brute force
,
constructive algorithms
,
implementation
1400
x2434
637B
Chat Order
*special problem
,
binary search
,
constructive algorithms
,
data structures
,
sortings
1200
x17495
637A
Voting for Photos
*special problem
,
constructive algorithms
,
implementation
1000
x5486
635A
Orchestra
brute force
,
implementation
1100
x2929
634A
Island Puzzle
constructive algorithms
,
implementation
1300
x3333
633H
Fibonacci-ish II
data structures
,
implementation
3100
x602
633G
Yash And Trees
bitmasks
,
data structures
,
dfs and similar
,
math
,
number theory
2800
x786
633F
The Chocolate Spree
dfs and similar
,
dp
,
graphs
,
trees
2600
x1015
633E
Startup Funding
binary search
,
constructive algorithms
,
data structures
,
probabilities
,
two pointers
2400
x591
633D
Fibonacci-ish
brute force
,
dp
,
hashing
,
implementation
,
math
2000
x2829
633C
Spy Syndrome 2
data structures
,
dp
,
hashing
,
implementation
,
sortings
,
string suffix structures
,
strings
1900
x2804
633B
A Trivial Problem
brute force
,
constructive algorithms
,
math
,
number theory
1300
x6749
633A
Ebony and Ivory
brute force
,
math
,
number theory
1100
x12936
632F
Magic Matrix
brute force
,
divide and conquer
,
graphs
,
matrices
,
trees
2400
x1109
632E
Thief in a Shop
divide and conquer
,
dp
,
fft
,
math
2400
x2867
632D
Longest Subsequence
brute force
,
math
,
number theory
2100
x3845
632C
The Smallest String Concatenation
sortings
,
strings
1700
x8128
632B
Alice, Bob, Two Teams
brute force
,
constructive algorithms
1400
x4031
632A
Grandma Laura and Apples
1200
x4626
631E
Product Sum
data structures
,
dp
,
geometry
2600
x2458
631D
Messenger
data structures
,
hashing
,
implementation
,
string suffix structures
,
strings
2100
x2095
631C
Report
data structures
,
sortings
1700
x3803
631B
Print Check
constructive algorithms
,
implementation
1200
x7475
631A
Interview
brute force
,
implementation
900
x9357
630R
Game
games
,
math
1200
x8786
630Q
Pyramids
geometry
,
math
1700
x1288
630P
Area of a Star
geometry
2100
x1141
630O
Arrow
geometry
2000
x778
630N
Forecast
math
1300
x4768
630M
Turn
geometry
,
math
1800
x1195
630L
Cracking the Code
implementation
,
math
1400
x3628
630K
Indivisibility
math
,
number theory
1500
x5428
630J
Divisibility
math
,
number theory
1100
x11310
←
1
2
...
72
73
74
75
76
...
100
101
→
User lists
Name