Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
760A
Petr and a calendar
implementation
,
math
800
x7742
758F
Geometrical Progression
brute force
,
math
,
number theory
2400
x620
758E
Broken Tree
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
2600
x443
758D
Ability To Convert
constructive algorithms
,
dp
,
greedy
,
math
,
strings
2000
x2688
758C
Unfair Poll
binary search
,
constructive algorithms
,
implementation
,
math
1700
x3822
758B
Blown Garland
brute force
,
implementation
,
number theory
1100
x10064
758A
Holiday Of Equality
implementation
,
math
800
x57526
757G
Can Bash Save the Day?
data structures
,
divide and conquer
,
graphs
,
trees
3400
x480
757F
Team Rocket Rises Again
data structures
,
graphs
,
shortest paths
2800
x1066
757E
Bash Plays with Functions
brute force
,
combinatorics
,
dp
,
number theory
2500
x1267
757D
Felicity's Big Secret Revealed
bitmasks
,
dp
2200
x1274
757C
Felicity is Coming!
data structures
,
hashing
,
sortings
,
strings
1900
x2308
757B
Bash's Big Day
greedy
,
math
,
number theory
1400
x9882
757A
Gotta Catch Em' All!
implementation
1000
x11092
756F
Long number
expression parsing
,
math
,
number theory
3400
x89
756E
Byteland coins
combinatorics
,
dp
,
math
3200
x152
756D
Bacterial Melee
brute force
,
combinatorics
,
dp
,
string suffix structures
2400
x976
756C
Nikita and stack
data structures
2200
x1279
756B
Travel Card
binary search
,
dp
1600
x3317
756A
Pavel and barbecue
constructive algorithms
,
dfs and similar
1700
x2959
755G
PolandBall and Many Other Balls
combinatorics
,
divide and conquer
,
dp
,
fft
,
math
,
number theory
3200
x860
755F
PolandBall and Gifts
bitmasks
,
dp
,
greedy
2600
x1276
755E
PolandBall and White-Red graph
constructive algorithms
,
graphs
,
shortest paths
2400
x813
755D
PolandBall and Polygon
data structures
2000
x2468
755C
PolandBall and Forest
dfs and similar
,
dsu
,
graphs
,
interactive
,
trees
1300
x11710
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10942
755A
PolandBall and Hypothesis
brute force
,
graphs
,
math
,
number theory
800
x17543
754E
Dasha and cyclic table
bitmasks
,
brute force
,
fft
,
strings
,
trees
2600
x481
754D
Fedor and coupons
binary search
,
data structures
,
greedy
,
sortings
2100
x2137
754C
Vladik and chat
brute force
,
constructive algorithms
,
dp
,
implementation
,
strings
2200
x909
754B
Ilya and tic-tac-toe game
brute force
,
implementation
1100
x7170
754A
Lesha and array splitting
constructive algorithms
,
greedy
,
implementation
1200
x8544
753C
Interactive Bulls and Cows (Hard)
brute force
,
constructive algorithms
,
interactive
2500
x281
753B
Interactive Bulls and Cows (Easy)
brute force
,
constructive algorithms
,
implementation
1600
x1172
753A
Santa Claus and Candies
dp
,
greedy
,
math
1000
x8777
750H
New Year and Snowy Grid
dfs and similar
,
dsu
,
graphs
,
interactive
3500
x187
750G
New Year and Binary Tree Paths
bitmasks
,
brute force
,
combinatorics
,
dp
3200
x441
750F
New Year and Finding Roots
constructive algorithms
,
implementation
,
interactive
,
trees
2800
x471
750E
New Year and Old Subsequence
data structures
,
divide and conquer
,
dp
,
matrices
2600
x1467
750D
New Year and Fireworks
brute force
,
data structures
,
dfs and similar
,
dp
,
implementation
1900
x3056
750C
New Year and Rating
binary search
,
greedy
,
math
1600
x6493
750B
New Year and North Pole
geometry
,
implementation
1300
x9430
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x71155
749E
Inversions After Shuffle
data structures
,
probabilities
2400
x1028
749D
Leaving Auction
binary search
,
data structures
2000
x2525
749C
Voting
greedy
,
implementation
,
two pointers
1500
x5913
749B
Parallelogram is Back
brute force
,
constructive algorithms
,
geometry
1200
x8375
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46718
748F
Santa Clauses and a Soccer Championship
constructive algorithms
,
dfs and similar
,
graphs
,
trees
2300
x633
748E
Santa Claus and Tangerines
binary search
,
data structures
,
greedy
,
two pointers
2100
x1442
748D
Santa Claus and a Palindrome
constructive algorithms
,
data structures
,
greedy
2100
x1812
748C
Santa Claus and Robot
constructive algorithms
,
math
1400
x4541
748B
Santa Claus and Keyboard Check
implementation
,
strings
1500
x5281
748A
Santa Claus and a Place in a Class
implementation
,
math
800
x8655
747F
Igor and Interesting Numbers
brute force
,
combinatorics
,
dp
,
math
2500
x411
747E
Comments
dfs and similar
,
expression parsing
,
implementation
,
strings
1700
x1938
747D
Winter Is Coming
dp
,
greedy
,
sortings
1800
x3009
747C
Servers
implementation
1300
x4492
747B
Mammoth's Genome Decoding
implementation
,
strings
900
x8575
747A
Display Size
brute force
,
math
800
x10045
746G
New Roads
constructive algorithms
,
graphs
,
trees
2100
x1317
746F
Music in Car
data structures
,
greedy
,
two pointers
2200
x723
746E
Numbers Exchange
greedy
,
implementation
,
math
1900
x1709
746D
Green and Black Tea
constructive algorithms
,
greedy
,
math
1500
x4983
746C
Tram
constructive algorithms
,
implementation
,
math
1600
x3684
746B
Decoding
implementation
,
strings
900
x26317
746A
Compote
implementation
,
math
800
x20657
745B
Hongcow Solves A Puzzle
implementation
1400
x3704
745A
Hongcow Learns the Cyclic Shift
implementation
,
strings
900
x10305
744E
Hongcow Masters the Cyclic Shift
strings
,
two pointers
3200
x133
744D
Hongcow Draws a Circle
geometry
3200
x118
744C
Hongcow Buys a Deck of Cards
bitmasks
,
brute force
,
dp
2400
x1011
744B
Hongcow's Game
bitmasks
,
divide and conquer
,
interactive
1900
x1707
744A
Hongcow Builds A Nation
dfs and similar
,
graphs
1500
x7920
743E
Vladik and cards
binary search
,
bitmasks
,
brute force
,
dp
2200
x1474
743D
Chloe and pleasant prizes
dfs and similar
,
dp
,
graphs
,
trees
1800
x4253
743C
Vladik and fractions
brute force
,
constructive algorithms
,
math
,
number theory
1500
x11859
743B
Chloe and the sequence
binary search
,
bitmasks
,
constructive algorithms
,
implementation
1200
x14240
743A
Vladik and flights
constructive algorithms
,
greedy
,
implementation
1200
x10853
742B
Arpa’s obvious problem and Mehrdad’s terrible solution
brute force
,
math
,
number theory
1500
x9043
742A
Arpa’s hard exam and Mehrdad’s naive cheat
implementation
,
math
,
number theory
1000
x40023
741E
Arpa’s abnormal DNA and Mehrdad’s deep interest
data structures
,
string suffix structures
3400
x174
741D
Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths
data structures
,
dfs and similar
,
trees
2900
x2456
741C
Arpa’s overnight party and Mehrdad’s silent entering
constructive algorithms
,
dfs and similar
,
graphs
2600
x2378
741B
Arpa's weak amphitheater and Mehrdad's valuable Hoses
dfs and similar
,
dp
,
dsu
1600
x5141
741A
Arpa's loud Owf and Mehrdad's evil plan
dfs and similar
,
math
1600
x5401
740B
Alyona and flowers
constructive algorithms
1200
x8138
740A
Alyona and copybooks
brute force
,
implementation
1300
x8814
739E
Gosha is hunting
brute force
,
data structures
,
dp
,
flows
,
math
,
probabilities
,
sortings
3000
x2055
739D
Recover a functional graph
graph matchings
3400
x180
739C
Alyona and towers
data structures
2500
x1407
739B
Alyona and a tree
binary search
,
data structures
,
dfs and similar
,
graphs
,
trees
1900
x4428
739A
Alyona and mex
constructive algorithms
,
greedy
1700
x7609
737F
Dirty plates
constructive algorithms
,
math
3300
x69
737E
Tanya is 5!
graph matchings
,
graphs
,
greedy
,
schedules
3300
x119
736E
Chess Championship
constructive algorithms
,
flows
,
greedy
,
math
2900
x182
736D
Permutations
math
,
matrices
2800
x450
735E
Ostap and Tree
dp
,
trees
2500
x846
735D
Taxes
math
,
number theory
1600
x12764
735C
Tennis Championship
combinatorics
,
constructive algorithms
,
greedy
,
math
1600
x7344
←
1
2
...
62
63
64
65
66
...
95
96
→
→ Pay attention
Before contest
Codeforces Round 946 (Div. 3)
3 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
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