Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
556B
Case of Fake Numbers
brute force
,
implementation
1100
x7888
556A
Case of the Zeros and Ones
greedy
900
x38180
555E
Case of Computer Network
dfs and similar
,
graphs
,
trees
2800
x2205
555D
Case of a Top Secret
binary search
,
implementation
,
math
2500
x858
555C
Case of Chocolate
data structures
2200
x1948
555B
Case of Fugitive
data structures
,
greedy
,
sortings
2000
x3691
555A
Case of Matryoshkas
implementation
1500
x6498
554B
Ohana Cleans Up
brute force
,
greedy
,
strings
1200
x9723
554A
Kyoya and Photobooks
brute force
,
math
,
strings
900
x12796
553E
Kyoya and Train
dp
,
fft
,
graphs
,
math
,
probabilities
3200
x539
553D
Nudist Beach
binary search
,
graphs
,
greedy
2300
x985
553C
Love Triangles
dfs and similar
,
dsu
,
graphs
2200
x1739
553B
Kyoya and Permutation
binary search
,
combinatorics
,
constructive algorithms
,
greedy
,
implementation
,
math
1900
x2097
553A
Kyoya and Colored Balls
combinatorics
,
dp
,
math
1500
x8406
552E
Vanya and Brackets
brute force
,
dp
,
expression parsing
,
greedy
,
implementation
,
strings
2100
x1415
552D
Vanya and Triangles
brute force
,
combinatorics
,
data structures
,
geometry
,
math
,
sortings
1900
x4368
552C
Vanya and Scales
brute force
,
dp
,
greedy
,
math
,
meet-in-the-middle
,
number theory
1900
x5416
552B
Vanya and Books
implementation
,
math
1200
x15238
552A
Vanya and Table
implementation
,
math
1000
x9385
551E
GukiZ and GukiZiana
binary search
,
data structures
,
implementation
2500
x1656
551D
GukiZ and Binary Operations
combinatorics
,
implementation
,
math
,
matrices
,
number theory
2100
x1774
551C
GukiZ hates Boxes
binary search
,
greedy
2200
x3452
551B
ZgukistringZ
brute force
,
constructive algorithms
,
implementation
,
strings
1800
x3761
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x16049
550E
Brackets in Implications
constructive algorithms
,
greedy
,
implementation
,
math
2200
x1379
550D
Regular Bridge
constructive algorithms
,
graphs
,
implementation
1900
x3253
550C
Divisibility by Eight
brute force
,
dp
,
math
1500
x27491
550B
Preparing Olympiad
bitmasks
,
brute force
1400
x19705
550A
Two Substrings
brute force
,
dp
,
greedy
,
implementation
,
strings
1500
x36566
549H
Degenerate Matrix
binary search
,
math
2100
x1822
549G
Happy Line
constructive algorithms
,
greedy
,
sortings
2200
x2399
549F
Yura and Developers
data structures
,
divide and conquer
2800
x851
549E
Sasha Circle
geometry
,
math
2700
x146
549D
Haar Features
greedy
,
implementation
1900
x2127
549C
The Game Of Parity
games
2200
x1719
549B
Looksery Party
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
2300
x1479
549A
Face Detection
implementation
,
strings
900
x9368
548B
Mike and Fun
brute force
,
dp
,
greedy
,
implementation
1400
x8300
548A
Mike and Fax
brute force
,
implementation
,
strings
1100
x9853
547E
Mike and Friends
data structures
,
string suffix structures
,
strings
,
trees
2800
x1951
547D
Mike and Fish
constructive algorithms
,
dfs and similar
,
graphs
2600
x2441
547C
Mike and Foam
bitmasks
,
combinatorics
,
dp
,
math
,
number theory
2300
x2730
547B
Mike and Feet
binary search
,
data structures
,
dp
,
dsu
1900
x8289
547A
Mike and Frog
brute force
,
greedy
,
implementation
,
math
2200
x2319
546E
Soldier and Traveling
flows
,
graphs
,
math
2100
x3496
546D
Soldier and Number Game
constructive algorithms
,
dp
,
math
,
number theory
1700
x11370
546C
Soldier and Cards
brute force
,
dfs and similar
,
games
1400
x17128
546B
Soldier and Badges
brute force
,
greedy
,
implementation
,
sortings
1200
x17289
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x169905
545E
Paths and Trees
graphs
,
greedy
,
shortest paths
2000
x4419
545D
Queue
greedy
,
implementation
,
sortings
1300
x24225
545C
Woodcutters
dp
,
greedy
1500
x26424
545B
Equidistant String
greedy
1100
x11450
545A
Toy Cars
implementation
900
x11454
544B
Sea and Islands
constructive algorithms
,
implementation
1400
x7846
544A
Set of Strings
implementation
,
strings
1100
x7777
543E
Listening to Music
constructive algorithms
,
data structures
3200
x281
543D
Road Improvement
dp
,
trees
2300
x2560
543C
Remembering Strings
bitmasks
,
dp
2500
x1363
543B
Destroying Roads
constructive algorithms
,
graphs
,
shortest paths
2100
x3847
543A
Writing Code
dp
1800
x7715
542F
Quest
dp
,
greedy
2100
x790
542E
Playing on Graph
graphs
,
shortest paths
2600
x810
542D
Superhero's Job
dfs and similar
,
dp
,
hashing
,
math
,
number theory
2600
x500
542C
Idempotent functions
constructive algorithms
,
graphs
,
math
2000
x1103
542B
Duck Hunt
data structures
3100
x184
542A
Place Your Ad Here
data structures
,
sortings
2400
x522
540E
Infinite Inversions
binary search
,
data structures
,
implementation
,
sortings
,
trees
2100
x2016
540D
Bad Luck Island
dp
,
probabilities
1900
x5219
540C
Ice Cave
dfs and similar
2000
x7057
540B
School Marks
greedy
,
implementation
1700
x4612
540A
Combination Lock
implementation
800
x31722
538H
Summer Dichotomy
2-sat
,
data structures
,
dfs and similar
,
greedy
3200
x630
538G
Berserk Robot
constructive algorithms
,
math
,
sortings
3100
x444
538F
A Heap of Heaps
brute force
,
data structures
,
math
,
sortings
2200
x1534
538E
Demiurges Play Again
dfs and similar
,
dp
,
math
,
trees
2200
x1503
538D
Weird Chess
brute force
,
constructive algorithms
,
implementation
1800
x2407
538C
Tourist's Notes
binary search
,
brute force
,
greedy
,
implementation
,
math
1600
x5767
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x17671
538A
Cutting Banner
brute force
,
implementation
1400
x7081
536E
Tavas on the Path
data structures
,
divide and conquer
,
trees
3100
x375
536D
Tavas in Kansas
dp
,
games
2900
x712
535E
Tavas and Pashmaks
geometry
,
math
2600
x799
535D
Tavas and Malekas
greedy
,
hashing
,
string suffix structures
,
strings
1900
x3799
535C
Tavas and Karafs
binary search
,
greedy
,
math
1900
x3709
535B
Tavas and SaDDas
bitmasks
,
brute force
,
combinatorics
,
implementation
1100
x21773
535A
Tavas and Nafas
brute force
,
implementation
1000
x11893
534F
Simplified Nonogram
bitmasks
,
dp
,
hashing
,
meet-in-the-middle
2400
x445
534E
Berland Local Positioning System
constructive algorithms
,
greedy
,
hashing
,
implementation
2400
x344
534D
Handshakes
binary search
,
constructive algorithms
,
data structures
,
greedy
1900
x2378
534C
Polycarpus' Dice
math
1600
x4939
534B
Covered Path
dp
,
greedy
,
math
1400
x9947
534A
Exam
constructive algorithms
,
implementation
,
math
1100
x12074
533F
Encoding
hashing
,
string suffix structures
,
strings
2400
x868
533E
Correcting Mistakes
constructive algorithms
,
dp
,
greedy
,
hashing
,
strings
,
two pointers
1800
x2227
533D
Landmarks
data structures
,
dp
3000
x217
533C
Board Game
games
,
greedy
,
implementation
,
math
1700
x2163
533B
Work Group
dfs and similar
,
dp
,
graphs
,
strings
,
trees
2000
x2314
533A
Berland Miners
binary search
,
data structures
,
dfs and similar
,
greedy
,
trees
3000
x375
530I
Different variables
*special problem
2500
x44
←
1
2
...
71
72
73
74
75
...
95
96
→
→ Pay attention
Before contest
Codeforces Round 951 (Div. 2)
11:45:26
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
User lists
Name