Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
894C
Marco and GCD Sequence
constructive algorithms
,
math
1900
x4688
894B
Ralph And His Magic Field
combinatorics
,
constructive algorithms
,
math
,
number theory
1800
x4759
894A
QAQ
brute force
,
dp
800
x40514
893F
Subtree Minimum Query
data structures
,
trees
2300
x2690
893E
Counting Arrays
combinatorics
,
dp
,
math
,
number theory
2000
x4411
893D
Credit Card
data structures
,
dp
,
greedy
,
implementation
1900
x3411
893C
Rumor
dfs and similar
,
graphs
,
greedy
1300
x29993
893B
Beautiful Divisors
brute force
,
implementation
1000
x13038
893A
Chess For Three
implementation
900
x11332
892B
Wrath
greedy
,
implementation
,
two pointers
1200
x10385
892A
Greed
greedy
,
implementation
900
x15304
891E
Lust
combinatorics
,
math
,
matrices
3000
x1298
891D
Sloth
dfs and similar
,
dp
,
graph matchings
,
trees
3100
x490
891C
Envy
data structures
,
dsu
,
graphs
2300
x3330
891B
Gluttony
constructive algorithms
,
greedy
2000
x3305
891A
Pride
brute force
,
dp
,
greedy
,
math
,
number theory
1500
x15684
889E
Mod Mod Mod
binary search
,
dp
,
math
3000
x834
888G
Xor-MST
bitmasks
,
constructive algorithms
,
data structures
2300
x6429
888F
Connecting Vertices
dp
,
graphs
2500
x1234
888E
Maximum Subsequence
bitmasks
,
divide and conquer
,
meet-in-the-middle
1800
x10220
888D
Almost Identity Permutations
combinatorics
,
dp
,
math
1600
x11230
888C
K-Dominant Character
binary search
,
implementation
,
two pointers
1400
x9194
888B
Buggy Robot
greedy
1000
x10959
888A
Local Extrema
brute force
,
implementation
800
x12261
887F
Row of Models
greedy
,
sortings
2500
x223
887E
Little Brother
binary search
,
geometry
,
sortings
2800
x225
887D
Ratings and Reality Shows
data structures
,
two pointers
2400
x583
887C
Solution for Cube
brute force
,
implementation
1500
x3007
887B
Cubes for Masha
brute force
,
implementation
1300
x6462
887A
Div. 64
implementation
1000
x12176
886F
Symmetric Projections
geometry
2900
x315
886E
Maximum Element
combinatorics
,
dp
,
math
2400
x1289
886D
Restoration of string
constructive algorithms
,
graphs
,
implementation
2000
x2082
886C
Petya and Catacombs
dsu
,
greedy
,
implementation
,
trees
1300
x5711
886B
Vlad and Cafes
1000
x8551
886A
ACM ICPC
brute force
1000
x11423
884F
Anti-Palindromize
flows
,
graphs
,
greedy
2500
x1360
884E
Binary Matrix
dsu
2500
x842
884D
Boxes And Balls
data structures
,
greedy
2300
x2298
884C
Bertown Subway
dfs and similar
,
greedy
,
math
1500
x5280
884B
Japanese Crosswords Strike Back
implementation
1100
x7778
884A
Book Reading
implementation
800
x11519
883M
Quadcopter Competition
greedy
,
math
1100
x3950
883L
Berland.Taxi
data structures
2500
x317
883K
Road Widening
constructive algorithms
,
greedy
,
implementation
1800
x1259
883J
Renovation
constructive algorithms
,
greedy
,
sortings
2400
x665
883I
Photo Processing
binary search
,
dp
1900
x2460
883H
Palindromic Cut
brute force
,
implementation
,
strings
1800
x1813
883G
Orientation of Edges
dfs and similar
,
graphs
1900
x1566
883F
Lost in Transliteration
implementation
1300
x2433
883E
Field of Wonders
implementation
,
strings
1500
x2080
883D
Packmen Strike Back
binary search
,
dp
,
math
2500
x513
883C
Downloading B++
binary search
,
implementation
2300
x899
883B
Berland Army
constructive algorithms
,
graphs
,
greedy
2600
x488
883A
Automatic Door
implementation
2200
x711
879B
Table Tennis
data structures
,
implementation
1200
x15113
879A
Borya's Diagnosis
implementation
900
x9713
878E
Numbers on the blackboard
combinatorics
,
dp
3300
x782
878D
Magic Breeding
bitmasks
2900
x1008
878C
Tournament
data structures
,
graphs
2700
x1086
878B
Teams Formation
data structures
,
implementation
2300
x1143
878A
Short Program
bitmasks
,
constructive algorithms
1600
x6122
877F
Ann and Books
data structures
,
flows
,
hashing
2300
x2596
877E
Danil and a Part-time Job
bitmasks
,
data structures
,
trees
2000
x6135
877D
Olya and Energy Drinks
data structures
,
dfs and similar
,
graphs
,
shortest paths
2100
x5423
877C
Slava and tanks
constructive algorithms
1600
x6118
877B
Nikita and string
brute force
,
dp
1500
x12373
877A
Alex and broken contest
implementation
,
strings
1100
x11651
876B
Divisiblity of Differences
implementation
,
math
,
number theory
1300
x10562
876A
Trip For Meal
math
900
x10204
875F
Royal Questions
dsu
,
graphs
,
greedy
2500
x1715
875E
Delivery Club
binary search
,
data structures
,
dp
2600
x1061
875D
High Cry
binary search
,
bitmasks
,
combinatorics
,
data structures
,
divide and conquer
2200
x2625
875C
National Property
2-sat
,
dfs and similar
,
graphs
,
implementation
2100
x2446
875B
Sorting the Coins
dsu
,
implementation
,
sortings
,
two pointers
1500
x5420
875A
Classroom Watch
brute force
,
math
1200
x10416
873F
Forbidden Indices
dsu
,
string suffix structures
,
strings
2400
x2029
873E
Awards For Contestants
brute force
,
data structures
,
dp
2300
x834
873D
Merge Sort
constructive algorithms
,
divide and conquer
1800
x4241
873C
Strange Game On Matrix
greedy
,
two pointers
1600
x3701
873B
Balanced Substring
dp
,
implementation
1500
x9363
873A
Chores
implementation
800
x10806
871E
Restore the Tree
graphs
,
greedy
,
trees
2900
x246
870F
Paths
data structures
,
number theory
2700
x751
870E
Points, Lines and Ready-made Titles
dfs and similar
,
dsu
,
graphs
,
trees
2300
x1352
870D
Something with XOR Queries
brute force
,
interactive
,
probabilities
2000
x1334
870C
Maximum splitting
dp
,
greedy
,
math
,
number theory
1300
x9886
870B
Maximum of Maximums of Minimums
greedy
1200
x10979
870A
Search for Pretty Integers
brute force
,
implementation
900
x10960
869E
The Untended Antiquity
data structures
,
hashing
2400
x2471
869D
The Overdosing Ubiquity
brute force
,
dfs and similar
,
graphs
2800
x376
869C
The Intriguing Obsession
combinatorics
,
dp
,
math
1800
x5396
869B
The Eternal Immortality
math
1100
x16074
869A
The Artful Expedient
brute force
,
implementation
1100
x9867
868G
El Toll Caves
math
3300
x200
868F
Yet Another Minimization Problem
divide and conquer
,
dp
2500
x5815
868E
Policeman and a Tree
dp
,
graphs
,
trees
2700
x575
868D
Huge Strings
bitmasks
,
brute force
,
dp
,
implementation
,
strings
2200
x1038
868C
Qualification Rounds
bitmasks
,
brute force
,
constructive algorithms
,
dp
1500
x5126
868B
Race Against Time
implementation
1400
x4002
←
1
2
...
76
77
78
79
80
...
115
116
→
→ Pay attention
Before contest
Codeforces Round 1134 (Div. 4)
5 days
Register now »
→ 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
User lists
Name