Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 945 (Div. 2)
44:12:49
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
binary search
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
825D
Suitable Replacement
binary search
,
greedy
,
implementation
1500
x3179
1575J
Jeopardy of Dropped Balls
binary search
,
brute force
,
dsu
,
implementation
1500
x3651
1250L
Divide The Students
binary search
,
greedy
,
math
1500
x4025
204B
Little Elephant and Cards
binary search
,
data structures
1500
x5026
1776L
Controllers
binary search
,
math
1500
x5233
204A
Little Elephant and Interval
binary search
,
combinatorics
,
dp
1500
x5539
1725G
Garage
binary search
,
geometry
,
math
1500
x5613
760B
Frodo and pillows
binary search
,
greedy
1500
x6085
415B
Mashmokh and Tokens
binary search
,
greedy
,
implementation
,
math
1500
x6124
91B
Queue
binary search
,
data structures
1500
x6521
527C
Glass Carving
binary search
,
data structures
,
implementation
1500
x6661
1158A
The Party and Sweets
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
1500
x6868
340D
Bubble Sort Graph
binary search
,
data structures
,
dp
1500
x7012
1010A
Fly
binary search
,
math
1500
x7996
978F
Mentors
binary search
,
data structures
,
implementation
1500
x8048
1971E
Find the Car
binary search
,
math
,
sortings
1500
x8410
1323B
Count Subrectangles
binary search
,
greedy
,
implementation
1500
x8519
1408C
Discrete Acceleration
binary search
,
dp
,
implementation
,
math
,
two pointers
1500
x8628
1166C
A Tale of Two Lands
binary search
,
sortings
,
two pointers
1500
x9151
1659C
Line Empire
binary search
,
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x9707
1933E
Turtle vs. Rabbit Race: Optimal Trainings
binary search
,
implementation
,
math
,
ternary search
1500
x9749
274A
k-Multiple Free Set
binary search
,
greedy
,
sortings
1500
x9866
991C
Candies
binary search
,
implementation
1500
x10028
1208B
Uniqueness
binary search
,
brute force
,
implementation
,
two pointers
1500
x10079
1926E
Vlad and an Odd Ordering
binary search
,
bitmasks
,
data structures
,
dp
,
implementation
,
math
,
number theory
1500
x10089
1817A
Almost Increasing Subsequence
binary search
,
data structures
,
greedy
1500
x10342
1436C
Binary Search
binary search
,
combinatorics
1500
x10535
1891C
Smilo and Monsters
binary search
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x11344
1760F
Quests
binary search
,
greedy
,
sortings
1500
x11353
1795C
Tea Tasting
binary search
,
data structures
,
implementation
1500
x11465
1791F
Range Update Point Query
binary search
,
brute force
,
data structures
1500
x11542
1811E
Living Sequence
binary search
,
dp
,
math
,
number theory
1500
x11590
1416A
k-Amazing Numbers
binary search
,
data structures
,
implementation
,
two pointers
1500
x11755
1872E
Data Structures Fan
binary search
,
bitmasks
,
data structures
,
dp
1500
x12056
1249C2
Good Numbers (hard version)
binary search
,
greedy
,
math
,
meet-in-the-middle
1500
x12219
1379B
Dubious Cyrpto
binary search
,
brute force
,
math
,
number theory
1500
x12473
670D2
Magic Powder - 2
binary search
,
implementation
1500
x13100
812C
Sagheer and Nubian Market
binary search
,
sortings
1500
x13164
702C
Cellular Network
binary search
,
implementation
,
two pointers
1500
x13199
1462E1
Close Tuples (easy version)
binary search
,
combinatorics
,
math
,
sortings
,
two pointers
1500
x13213
1792C
Min Max Sort
binary search
,
brute force
,
greedy
,
math
,
two pointers
1500
x13280
701C
They Are Everywhere
binary search
,
strings
,
two pointers
1500
x13810
1301B
Motarack's Birthday
binary search
,
greedy
,
ternary search
1500
x13866
1690E
Price Maximization
binary search
,
greedy
,
math
,
two pointers
1500
x14535
1419D2
Sage's Birthday (hard version)
binary search
,
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x14774
1486B
Eastern Exhibition
binary search
,
geometry
,
shortest paths
,
sortings
1500
x15267
1490F
Equalize the Array
binary search
,
data structures
,
greedy
,
math
,
sortings
1500
x15499
1492C
Maximum width
binary search
,
data structures
,
dp
,
greedy
,
two pointers
1500
x15592
165B
Burning Midnight Oil
binary search
,
implementation
1500
x16556
1487D
Pythagorean Triples
binary search
,
brute force
,
math
,
number theory
1500
x17073
676C
Vasya and String
binary search
,
dp
,
strings
,
two pointers
1500
x18164
1538F
Interesting Function
binary search
,
dp
,
math
,
number theory
1500
x18380
580B
Kefa and Company
binary search
,
sortings
,
two pointers
1500
x24970
1769B2
Копирование файлов II
*special problem
,
binary search
,
brute force
,
math
1400
x857
386B
Fly, freebies, fly!
binary search
,
brute force
,
implementation
1400
x2088
335A
Banana
binary search
,
constructive algorithms
,
greedy
1400
x2516
159C
String Manipulation 1.0
*special problem
,
binary search
,
brute force
,
data structures
,
strings
1400
x2921
1184B1
The Doctor Meets Vader (Easy)
binary search
,
sortings
1400
x5108
233B
Non-square Equation
binary search
,
brute force
,
math
1400
x7323
888C
K-Dominant Character
binary search
,
implementation
,
two pointers
1400
x8083
604B
More Cowbell
binary search
,
greedy
1400
x8260
1896C
Matching Arrays
binary search
,
constructive algorithms
,
greedy
,
sortings
1400
x8628
1967A
Permutation Counting
binary search
,
greedy
,
implementation
,
math
,
sortings
1400
x8995
1883G1
Dances (Easy version)
binary search
,
greedy
,
two pointers
1400
x9218
975C
Valhalla Siege
binary search
1400
x9375
1609C
Complex Market Analysis
binary search
,
dp
,
implementation
,
number theory
,
schedules
,
two pointers
1400
x9493
253B
Physics Practical
binary search
,
dp
,
sortings
,
two pointers
1400
x10328
1284B
New Year and Ascent Sequence
binary search
,
combinatorics
,
data structures
,
dp
,
implementation
,
sortings
1400
x10591
1904C
Array Game
binary search
,
brute force
,
data structures
,
sortings
,
two pointers
1400
x10692
1878E
Iva & Pav
binary search
,
bitmasks
,
data structures
,
greedy
1400
x11129
1907D
Jumping Through Segments
binary search
,
constructive algorithms
1400
x12012
1805C
Place for a Selfie
binary search
,
data structures
,
geometry
,
math
1400
x12035
1719C
Fighting Tournament
binary search
,
data structures
,
implementation
,
two pointers
1400
x12877
1840D
Wooden Toy Festival
binary search
,
greedy
,
sortings
1400
x12884
1771B
Hossam and Friends
binary search
,
constructive algorithms
,
dp
,
two pointers
1400
x12889
1721C
Min-Max Array Transformation
binary search
,
greedy
,
two pointers
1400
x12986
1929C
Sasha and the Casino
binary search
,
brute force
,
constructive algorithms
,
games
,
greedy
,
math
1400
x13292
1845C
Strong Password
binary search
,
dp
,
greedy
,
strings
1400
x13352
1263C
Everyone is a Winner!
binary search
,
math
,
meet-in-the-middle
,
number theory
1400
x13356
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13396
1183C
Computer Game
binary search
,
math
1400
x13671
1697C
awoo's Favorite Problem
binary search
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
strings
,
two pointers
1400
x13959
1452B
Toy Blocks
binary search
,
greedy
,
math
,
sortings
1400
x14446
1443C
The Delivery Dilemma
binary search
,
greedy
,
sortings
1400
x14959
1551B2
Wonderful Coloring - 2
binary search
,
constructive algorithms
,
data structures
,
greedy
1400
x15060
1628A
Meximum Array
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
two pointers
1400
x15218
1354C1
Simple Polygon Embedding
binary search
,
geometry
,
math
,
ternary search
1400
x15333
1701C
Schedule Management
binary search
,
greedy
,
implementation
,
two pointers
1400
x15788
670D1
Magic Powder - 1
binary search
,
brute force
,
implementation
1400
x16065
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x16107
1624D
Palindromes Coloring
binary search
,
greedy
,
sortings
,
strings
1400
x16283
816B
Karen and Coffee
binary search
,
data structures
,
implementation
1400
x16478
1490E
Accidental Victory
binary search
,
data structures
,
greedy
1400
x18411
1201C
Maximum Median
binary search
,
greedy
,
math
,
sortings
1400
x21638
1324D
Pair of Topics
binary search
,
data structures
,
sortings
,
two pointers
1400
x26806
279B
Books
binary search
,
brute force
,
implementation
,
two pointers
1400
x47962
181B
Number of Triplets
binary search
,
brute force
1300
x2896
161A
Dress'em in Vests!
binary search
,
brute force
,
greedy
,
two pointers
1300
x4682
152B
Steps
binary search
,
implementation
1300
x6343
932B
Recursive Queries
binary search
,
data structures
,
dfs and similar
1300
x7797
←
1
2
...
7
8
9
10
11
→
User lists
Name