Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rating changes for last rounds are temporarily rolled back. They will be returned soon.
×
→ Pay attention
Before contest
Codeforces Round 941 (Div. 1)
3 days
Register now »
*has extra registration
Before contest
Codeforces Round 941 (Div. 2)
3 days
Register now »
*has extra registration
→ 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
x234646
158A
Next Round
*special problem
,
implementation
800
x231394
263A
Beautiful Matrix
implementation
800
x223426
112A
Petya and Strings
implementation
,
strings
800
x208087
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x197184
281A
Word Capitalization
implementation
,
strings
800
x195082
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x192062
791A
Bear and Big Brother
implementation
800
x177691
266A
Stones on the Table
implementation
800
x177018
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x166579
59A
Word
implementation
,
strings
800
x161043
977A
Wrong Subtraction
implementation
800
x154013
110A
Nearly Lucky Number
implementation
800
x141746
734A
Anton and Danik
implementation
,
strings
800
x139172
41A
Translation
implementation
,
strings
800
x134100
116A
Tram
implementation
800
x131454
677A
Vanya and Fence
implementation
800
x129794
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x126197
1030A
In Search of an Easy Problem
implementation
800
x119159
467A
George and Accommodation
implementation
800
x113189
344A
Magnets
implementation
800
x111097
486A
Calculating Function
implementation
,
math
800
x108788
136A
Presents
implementation
800
x108551
200B
Drinks
implementation
,
math
800
x107185
61A
Ultra-Fast Mathematician
implementation
800
x103134
228A
Is your horseshoe on the other hoof?
implementation
800
x101386
705A
Hulk
implementation
800
x98942
469A
I Wanna Be the Guy
greedy
,
implementation
800
x90886
520A
Pangram
implementation
,
strings
800
x89239
144A
Arrival of the General
implementation
800
x88574
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x86757
443A
Anton and Letters
constructive algorithms
,
implementation
800
x83482
785A
Anton and Polyhedrons
implementation
,
strings
800
x81726
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77545
510A
Fox And Snake
implementation
800
x76435
427A
Police Recruits
implementation
800
x72059
1352A
Sum of Round Numbers
implementation
,
math
800
x71384
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70462
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70293
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x66870
581A
Vasya the Hipster
implementation
,
math
800
x66819
151A
Soft Drinking
implementation
,
math
800
x65356
1742A
Sum
implementation
800
x64011
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x61999
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x59843
1512A
Spy Detected!
brute force
,
implementation
800
x59555
1692A
Marathon
implementation
800
x59234
32B
Borze
expression parsing
,
implementation
800
x58347
1676A
Lucky?
implementation
800
x57549
758A
Holiday Of Equality
implementation
,
math
800
x56974
1669A
Division?
implementation
800
x56578
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56419
1560A
Dislike of Threes
implementation
800
x55587
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55207
1807A
Plus or Minus
implementation
800
x55189
1367A
Short Substrings
implementation
,
strings
800
x54627
1791A
Codeforces Checking
implementation
,
strings
800
x54432
703A
Mishka and Game
implementation
800
x53342
1760A
Medium Number
implementation
,
sortings
800
x53121
431A
Black Square
implementation
800
x51148
1850A
To My Critics
implementation
,
sortings
800
x50544
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49423
1433A
Boring Apartments
implementation
,
math
800
x49081
1915A
Odd One Out
bitmasks
,
implementation
800
x48940
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48517
1873A
Short Sort
brute force
,
implementation
800
x48178
1619A
Square String?
implementation
,
strings
800
x48011
1722A
Spell Check
implementation
800
x46493
492A
Vanya and Cubes
implementation
800
x46480
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46271
1535A
Fair Playoff
brute force
,
implementation
800
x46093
707A
Brain's Photos
implementation
800
x45985
1829A
Love Story
implementation
,
strings
800
x45371
1426A
Floor Number
implementation
,
math
800
x45360
1703B
ICPC Balloons
data structures
,
implementation
800
x44965
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44030
1772A
A+B?
implementation
800
x43680
1722B
Colourblindness
implementation
800
x42952
731A
Night at the Museum
implementation
,
strings
800
x42926
1791B
Following Directions
geometry
,
implementation
800
x41563
935A
Fafa and his Company
brute force
,
implementation
800
x41407
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41400
1950A
Stair, Peak, or Neither?
implementation
800
x41370
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41245
1926A
Vlad and the Best of Five
implementation
800
x41105
1850C
Word on the Paper
implementation
,
strings
800
x40635
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40580
1829B
Blank Space
implementation
800
x40339
233A
Perfect Permutation
implementation
,
math
800
x40273
1791C
Prepend and Append
implementation
,
two pointers
800
x40088
1850B
Ten Words of Wisdom
implementation
,
sortings
800
x40055
1462A
Favorite Sequence
implementation
,
two pointers
800
x39779
1669B
Triple
implementation
,
sortings
800
x39548
1915B
Not Quite Latin Square
bitmasks
,
brute force
,
implementation
800
x38064
509A
Maximum in Table
brute force
,
implementation
800
x37172
1915C
Can I Square?
binary search
,
implementation
800
x37029
1097A
Gennady and a Card Game
brute force
,
implementation
800
x36903
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36616
1186A
Vus the Cossack and a Contest
implementation
800
x36023
1607A
Linear Keyboard
implementation
,
strings
800
x35916
←
1
2
3
...
25
26
→
User lists
Name