Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 1134 (Div. 4)
4 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
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
126D
Fibonacci Sums
dp
,
math
2300
x997
126C
E-reader Display
constructive algorithms
,
greedy
2000
x854
126B
Password
binary search
,
dp
,
hashing
,
string suffix structures
,
strings
1700
x27102
126A
Hot Bath
binary search
,
brute force
,
math
1900
x1625
125E
MST Company
binary search
,
graphs
2400
x1719
125D
Two progressions
constructive algorithms
,
greedy
2200
x468
125C
Hobbits' Party
constructive algorithms
,
greedy
1600
x1118
125B
Simple XML
implementation
1000
x3828
125A
Measuring Lengths in Baden
math
1400
x3346
124B
Permutations
brute force
,
combinatorics
,
implementation
1400
x5141
124A
The number of positions
math
1000
x45661
123E
Maze
dfs and similar
,
dp
,
probabilities
,
trees
2500
x865
123D
String
string suffix structures
2300
x1524
123C
Brackets
combinatorics
,
dp
,
greedy
2300
x776
123B
Squares
math
1800
x1338
123A
Prime Permutation
implementation
,
number theory
,
strings
1300
x4140
122B
Lucky Substring
brute force
,
implementation
1000
x13448
122A
Lucky Division
brute force
,
number theory
1000
x157858
121E
Lucky Array
data structures
2400
x2293
121D
Lucky Segments
binary search
,
implementation
,
two pointers
2500
x368
121C
Lucky Permutation
brute force
,
combinatorics
,
number theory
1900
x1498
121B
Lucky Transformation
strings
1500
x2881
121A
Lucky Sum
implementation
1100
x10932
120J
Minimum Sum
divide and conquer
,
geometry
,
sortings
1900
x1074
120I
Luck is in Numbers
greedy
2200
x323
120H
Brevity is Soul of Wit
graph matchings
1800
x1666
120G
Boom
implementation
1800
x725
120F
Spiders
dp
,
greedy
,
trees
1400
x4243
120E
Put Knight!
games
,
math
1400
x3056
120D
Three Sons
brute force
1400
x2126
120C
Winnie-the-Pooh and honey
implementation
,
math
1100
x4043
120B
Quiz League
implementation
1100
x3723
120A
Elevator
brute force
,
implementation
,
math
1000
x5813
119E
Alternative Reality
geometry
2400
x137
119D
String Transformation
hashing
,
strings
2500
x779
119C
Education Reform
dp
2000
x1143
119B
Before Exam
constructive algorithms
,
implementation
,
sortings
1900
x1155
119A
Epic Game
implementation
800
x30132
118E
Bertown roads
dfs and similar
,
graphs
2000
x9456
118D
Caesar's Legions
dp
1700
x21729
118C
Fancy Number
brute force
,
greedy
,
sortings
,
strings
1900
x3063
118B
Present from Lena
constructive algorithms
,
implementation
1000
x35784
118A
String Task
implementation
,
strings
1000
x244426
117E
Tree or not Tree
data structures
,
divide and conquer
,
graphs
,
implementation
,
trees
2900
x481
117D
Not Quick Transformation
divide and conquer
,
math
2500
x415
117C
Cycle
dfs and similar
,
graphs
2000
x3071
117B
Very Interesting Game
brute force
,
number theory
1800
x1772
117A
Elevator
implementation
,
math
1300
x2257
116B
Little Pigs and Wolves
greedy
,
implementation
1100
x14794
116A
Tram
implementation
800
x188028
115E
Linear Kingdom Races
data structures
,
dp
2400
x2675
115D
Unambiguous Arithmetic Expression
dp
,
expression parsing
2600
x594
115C
Plumber
math
2200
x715
115B
Lawnmower
greedy
,
sortings
1500
x2889
115A
Party
dfs and similar
,
graphs
,
trees
900
x47547
114B
PFAST Inc.
bitmasks
,
brute force
,
graphs
1500
x4391
114A
Cifera
math
1000
x15421
113E
Sleeping
combinatorics
,
implementation
,
math
2700
x191
113D
Museum
math
,
matrices
,
probabilities
2700
x1003
113C
Double Happiness
brute force
,
math
,
number theory
2200
x1519
113B
Petr#
brute force
,
data structures
,
hashing
,
strings
2000
x3398
113A
Grammar Lessons
implementation
,
strings
1600
x2639
112B
Petya and Square
implementation
,
math
1200
x4652
112A
Petya and Strings
implementation
,
strings
800
x308721
111E
Petya and Rectangle
2900
x76
111D
Petya and Coloring
combinatorics
,
dp
2300
x953
111C
Petya and Spiders
bitmasks
,
dp
,
dsu
2100
x1647
111B
Petya and Divisors
binary search
,
data structures
,
number theory
1900
x4214
111A
Petya and Inequiations
greedy
1400
x5299
110B
Lucky String
constructive algorithms
,
strings
1100
x11200
110A
Nearly Lucky Number
implementation
800
x214936
109E
Lucky Interval
brute force
,
math
2700
x145
109D
Lucky Sorting
constructive algorithms
,
sortings
2000
x939
109C
Lucky Tree
dp
,
dsu
,
trees
1900
x4293
109B
Lucky Probability
brute force
,
probabilities
1900
x1841
109A
Lucky Sum of Digits
brute force
,
implementation
1000
x20413
108B
Datatypes
math
,
sortings
1400
x2786
108A
Palindromic Times
implementation
,
strings
1000
x10558
107E
Darts
geometry
,
probabilities
2700
x168
107D
Crime Management
dp
,
graphs
,
matrices
2400
x524
107C
Arrangement
bitmasks
,
dp
2400
x517
107B
Basketball Team
combinatorics
,
dp
,
math
,
probabilities
1600
x4544
107A
Dorm Water Supply
dfs and similar
,
graphs
1400
x6073
106E
Space Rescuers
geometry
,
ternary search
2100
x1039
106D
Treasure Island
brute force
,
implementation
1700
x1493
106C
Buns
dp
1700
x7383
106B
Choosing Laptop
brute force
,
implementation
1000
x6988
106A
Card Game
implementation
1000
x8682
105E
Lift and Throw
brute force
2500
x241
105D
Entertaining Geodetics
brute force
,
dsu
,
implementation
2700
x150
105C
Item World
brute force
,
implementation
,
sortings
2200
x416
105B
Dark Assembly
brute force
,
probabilities
1800
x945
105A
Transmigration
implementation
1700
x2051
104A
Blackjack
implementation
800
x17661
103E
Buying Sets
flows
,
graph matchings
2900
x1171
103D
Time to Raid Cowavans
brute force
,
data structures
,
sortings
2100
x2733
103C
Russian Roulette
constructive algorithms
,
greedy
1900
x1082
103B
Cthulhu
dfs and similar
,
dsu
,
graphs
1500
x11339
103A
Testing Pants for Sadness
greedy
,
implementation
,
math
1100
x6742
102B
Sum of Digits
implementation
1000
x33204
←
1
2
...
108
109
110
111
112
...
115
116
→
User lists
Name