Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round (Div. 3)
43:42:47
Register now »
→ Filter Problems
Difficulty:
—
implementation
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
282A
Bit++
implementation
800
x235413
158A
Next Round
*special problem
,
implementation
800
x231910
263A
Beautiful Matrix
implementation
800
x224043
112A
Petya and Strings
implementation
,
strings
800
x208631
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x197719
281A
Word Capitalization
implementation
,
strings
800
x195591
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x192694
118A
String Task
implementation
,
strings
1000
x180871
791A
Bear and Big Brother
implementation
800
x178310
266A
Stones on the Table
implementation
800
x177597
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x167127
59A
Word
implementation
,
strings
800
x161535
69A
Young Physicist
implementation
,
math
1000
x154689
977A
Wrong Subtraction
implementation
800
x154436
96A
Football
implementation
,
strings
900
x148733
110A
Nearly Lucky Number
implementation
800
x142123
734A
Anton and Danik
implementation
,
strings
800
x139745
41A
Translation
implementation
,
strings
800
x134538
116A
Tram
implementation
800
x131739
677A
Vanya and Fence
implementation
800
x130232
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x126447
1030A
In Search of an Easy Problem
implementation
800
x119564
467A
George and Accommodation
implementation
800
x113444
344A
Magnets
implementation
800
x111442
486A
Calculating Function
implementation
,
math
800
x109081
136A
Presents
implementation
800
x108831
200B
Drinks
implementation
,
math
800
x107467
61A
Ultra-Fast Mathematician
implementation
800
x103356
228A
Is your horseshoe on the other hoof?
implementation
800
x101676
133A
HQ9+
implementation
900
x99764
705A
Hulk
implementation
800
x99181
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x94173
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91111
520A
Pangram
implementation
,
strings
800
x89533
144A
Arrival of the General
implementation
800
x88755
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x86920
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x83763
443A
Anton and Letters
constructive algorithms
,
implementation
800
x83689
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x82291
785A
Anton and Polyhedrons
implementation
,
strings
800
x81970
131A
cAPS lOCK
implementation
,
strings
1000
x81053
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77712
4C
Registration System
data structures
,
hashing
,
implementation
1300
x76887
510A
Fox And Snake
implementation
800
x76762
427A
Police Recruits
implementation
800
x72269
1352A
Sum of Round Numbers
implementation
,
math
800
x71636
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x70975
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70657
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70537
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x69686
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67103
581A
Vasya the Hipster
implementation
,
math
800
x66979
339B
Xenia and Ringroad
implementation
1000
x66272
151A
Soft Drinking
implementation
,
math
800
x65554
1742A
Sum
implementation
800
x64298
451A
Game With Sticks
implementation
900
x62503
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x62311
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60123
1512A
Spy Detected!
brute force
,
implementation
800
x59761
1692A
Marathon
implementation
800
x59423
466A
Cheap Travel
implementation
1200
x59402
32B
Borze
expression parsing
,
implementation
800
x58505
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x58189
1676A
Lucky?
implementation
800
x57743
758A
Holiday Of Equality
implementation
,
math
800
x57128
1669A
Division?
implementation
800
x56815
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56535
1560A
Dislike of Threes
implementation
800
x55720
1807A
Plus or Minus
implementation
800
x55410
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55377
1367A
Short Substrings
implementation
,
strings
800
x54740
1791A
Codeforces Checking
implementation
,
strings
800
x54654
313A
Ilya and Bank Account
implementation
,
number theory
900
x53475
703A
Mishka and Game
implementation
800
x53450
1760A
Medium Number
implementation
,
sortings
800
x53347
431A
Black Square
implementation
800
x51311
1850A
To My Critics
implementation
,
sortings
800
x50784
500A
New Year Transportation
dfs and similar
,
graphs
,
implementation
1000
x50127
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49516
1915A
Odd One Out
bitmasks
,
implementation
800
x49209
1433A
Boring Apartments
implementation
,
math
800
x49182
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48605
1873A
Short Sort
brute force
,
implementation
800
x48414
1619A
Square String?
implementation
,
strings
800
x48384
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x47791
279B
Books
binary search
,
brute force
,
implementation
,
two pointers
1400
x47597
1722A
Spell Check
implementation
800
x46629
492A
Vanya and Cubes
implementation
800
x46594
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46351
1535A
Fair Playoff
brute force
,
implementation
800
x46206
707A
Brain's Photos
implementation
800
x46114
1829A
Love Story
implementation
,
strings
800
x45622
514A
Chewbaсca and Number
greedy
,
implementation
1200
x45475
1426A
Floor Number
implementation
,
math
800
x45428
1703B
ICPC Balloons
data structures
,
implementation
800
x45149
474B
Worms
binary search
,
implementation
1200
x44687
379A
New Year Candles
implementation
1000
x44383
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44328
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x44201
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44177
←
1
2
3
...
26
27
→
User lists
Name