Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Please read
the new rule regarding the restriction on the use of AI tools
.
×
→ Pay attention
Before contest
Codeforces Round (Div. 2)
6 days
→ 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
900C
Remove Extra One
brute force
,
data structures
,
math
1700
x4553
900B
Position in Fraction
math
,
number theory
1300
x7828
900A
Find Extra One
geometry
,
implementation
800
x13588
899F
Letters Removing
data structures
,
strings
2100
x1841
899E
Segments Removal
data structures
,
dsu
,
flows
,
implementation
,
two pointers
2000
x3040
899D
Shovel Sale
constructive algorithms
,
math
1800
x2756
899C
Dividing the numbers
constructive algorithms
,
graphs
,
math
1300
x8461
899B
Months and Years
implementation
1200
x5881
899A
Splitting in Teams
constructive algorithms
,
greedy
,
math
800
x10221
898F
Restoring the Expression
brute force
,
hashing
,
math
2300
x1190
898E
Squares and not squares
constructive algorithms
,
greedy
1600
x4585
898D
Alarm Clock
greedy
1600
x3903
898C
Phone Numbers
implementation
,
strings
1400
x5279
898B
Proper Nutrition
brute force
,
implementation
,
number theory
1100
x9570
898A
Rounding
implementation
,
math
800
x16121
897B
Chtholly's request
brute force
1300
x7176
897A
Scarborough Fair
implementation
800
x14181
896E
Welcome home, Chtholly
data structures
,
dsu
3100
x2131
896D
Nephren Runs a Cinema
chinese remainder theorem
,
combinatorics
,
math
,
number theory
2900
x531
896C
Willem, Chtholly and Seniorious
data structures
,
probabilities
2600
x3423
896B
Ithea Plays With Chtholly
binary search
,
constructive algorithms
,
games
,
greedy
,
interactive
2000
x2121
896A
Nephren gives a riddle
binary search
,
dfs and similar
1700
x3450
895E
Eyes Closed
data structures
,
probabilities
2300
x1106
895D
String Mark
combinatorics
,
math
,
strings
2100
x1109
895C
Square Subsets
bitmasks
,
combinatorics
,
dp
,
math
2000
x5519
895B
XK Segments
binary search
,
math
,
sortings
,
two pointers
1700
x3538
895A
Pizza Separation
brute force
,
implementation
1200
x6539
894E
Ralph and Mushrooms
dp
,
graphs
2100
x2322
894D
Ralph And His Tour in Binary Country
brute force
,
data structures
,
trees
2200
x1128
894C
Marco and GCD Sequence
constructive algorithms
,
math
1900
x4367
894B
Ralph And His Magic Field
combinatorics
,
constructive algorithms
,
math
,
number theory
1800
x4464
894A
QAQ
brute force
,
dp
800
x34330
893F
Subtree Minimum Query
data structures
,
trees
2300
x1987
893E
Counting Arrays
combinatorics
,
dp
,
math
,
number theory
2000
x3644
893D
Credit Card
data structures
,
dp
,
greedy
,
implementation
1900
x3037
893C
Rumor
dfs and similar
,
graphs
,
greedy
1300
x23065
893B
Beautiful Divisors
brute force
,
implementation
1000
x11360
893A
Chess For Three
implementation
900
x10199
892B
Wrath
greedy
,
implementation
,
two pointers
1200
x8982
892A
Greed
greedy
,
implementation
900
x13456
891E
Lust
combinatorics
,
math
,
matrices
3000
x932
891D
Sloth
dfs and similar
,
dp
,
graph matchings
,
trees
3100
x191
891C
Envy
data structures
,
dsu
,
graphs
2300
x2373
891B
Gluttony
constructive algorithms
,
greedy
2000
x2991
891A
Pride
brute force
,
dp
,
greedy
,
math
,
number theory
1500
x10159
889E
Mod Mod Mod
binary search
,
dp
,
math
3000
x550
888G
Xor-MST
bitmasks
,
constructive algorithms
,
data structures
2300
x4507
888F
Connecting Vertices
dp
,
graphs
2500
x815
888E
Maximum Subsequence
bitmasks
,
divide and conquer
,
meet-in-the-middle
1800
x7246
888D
Almost Identity Permutations
combinatorics
,
dp
,
math
1600
x8321
888C
K-Dominant Character
binary search
,
implementation
,
two pointers
1400
x8229
888B
Buggy Robot
greedy
1000
x9730
888A
Local Extrema
brute force
,
implementation
800
x10942
887F
Row of Models
greedy
,
sortings
2500
x165
887E
Little Brother
binary search
,
geometry
,
sortings
2800
x163
887D
Ratings and Reality Shows
data structures
,
two pointers
2400
x478
887C
Solution for Cube
brute force
,
implementation
1500
x2892
887B
Cubes for Masha
brute force
,
implementation
1300
x5625
887A
Div. 64
implementation
1000
x11252
886F
Symmetric Projections
geometry
2900
x267
886E
Maximum Element
combinatorics
,
dp
,
math
2400
x1018
886D
Restoration of string
constructive algorithms
,
graphs
,
implementation
2000
x1799
886C
Petya and Catacombs
dsu
,
greedy
,
implementation
,
trees
1300
x5474
886B
Vlad and Cafes
1000
x7894
886A
ACM ICPC
brute force
1000
x10283
884F
Anti-Palindromize
flows
,
graphs
,
greedy
2500
x1063
884E
Binary Matrix
dsu
2500
x685
884D
Boxes And Balls
data structures
,
greedy
2300
x1999
884C
Bertown Subway
dfs and similar
,
greedy
,
math
1500
x4705
884B
Japanese Crosswords Strike Back
implementation
1100
x6871
884A
Book Reading
implementation
800
x10465
883M
Quadcopter Competition
greedy
,
math
1100
x3588
883L
Berland.Taxi
data structures
2500
x232
883K
Road Widening
constructive algorithms
,
greedy
,
implementation
1800
x1096
883J
Renovation
constructive algorithms
,
greedy
,
sortings
2400
x576
883I
Photo Processing
binary search
,
dp
1900
x1958
883H
Palindromic Cut
brute force
,
implementation
,
strings
1800
x1615
883G
Orientation of Edges
dfs and similar
,
graphs
1900
x1411
883F
Lost in Transliteration
implementation
1300
x2268
883E
Field of Wonders
implementation
,
strings
1500
x1898
883D
Packmen Strike Back
binary search
,
dp
,
math
2500
x372
883C
Downloading B++
binary search
,
implementation
2300
x627
883B
Berland Army
constructive algorithms
,
graphs
,
greedy
2600
x370
883A
Automatic Door
implementation
2200
x590
879B
Table Tennis
data structures
,
implementation
1200
x12372
879A
Borya's Diagnosis
implementation
900
x9078
878E
Numbers on the blackboard
combinatorics
,
dp
3300
x550
878D
Magic Breeding
bitmasks
2900
x674
878C
Tournament
data structures
,
graphs
2700
x924
878B
Teams Formation
data structures
,
implementation
2300
x1061
878A
Short Program
bitmasks
,
constructive algorithms
1600
x5477
877F
Ann and Books
data structures
,
flows
,
hashing
2300
x1797
877E
Danil and a Part-time Job
bitmasks
,
data structures
,
trees
2000
x4509
877D
Olya and Energy Drinks
data structures
,
dfs and similar
,
graphs
,
shortest paths
2100
x4329
877C
Slava and tanks
constructive algorithms
1600
x5684
877B
Nikita and string
brute force
,
dp
1500
x10423
877A
Alex and broken contest
implementation
,
strings
1100
x10870
876B
Divisiblity of Differences
implementation
,
math
,
number theory
1300
x9146
876A
Trip For Meal
math
900
x9363
875F
Royal Questions
dsu
,
graphs
,
greedy
2500
x1328
←
1
2
...
57
58
59
60
61
...
95
96
→
User lists
Name