Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 968 (Div. 2)
2 days
Register now »
*has extra registration
→ 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
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
306A
Candies
implementation
800
x6720
302A
Eugeny and Array
implementation
800
x9040
294A
Shaass and Oskols
implementation
,
math
800
x23106
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x6061
282A
Bit++
implementation
800
x252356
281A
Word Capitalization
implementation
,
strings
800
x205918
278A
Circle Line
implementation
800
x11595
271A
Beautiful Year
brute force
800
x134253
268A
Games
brute force
800
x84662
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x132295
266A
Stones on the Table
implementation
800
x186176
265A
Colorful Stones (Simplified Edition)
implementation
800
x35929
263A
Beautiful Matrix
implementation
800
x237606
262A
Roma and Lucky Numbers
implementation
800
x19554
255A
Greg's Workout
implementation
800
x28246
248A
Cupboards
implementation
800
x21992
245A
System Administrator
implementation
800
x8366
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x204222
233A
Perfect Permutation
implementation
,
math
800
x41798
231A
Team
brute force
,
greedy
800
x315179
228A
Is your horseshoe on the other hoof?
implementation
800
x107248
214A
System of Equations
brute force
800
x34810
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x16482
200B
Drinks
implementation
,
math
800
x113187
181A
Series of Crimes
brute force
,
geometry
,
implementation
800
x6982
177A2
Good Matrix Elements
implementation
800
x7212
177A1
Good Matrix Elements
implementation
800
x8450
172A
Phone Code
*special problem
,
brute force
,
implementation
800
x6061
169A
Chores
sortings
800
x6678
158A
Next Round
*special problem
,
implementation
800
x242950
157A
Game Outcome
brute force
800
x7526
155A
I_love_\%username\%
brute force
800
x73642
151A
Soft Drinking
implementation
,
math
800
x70559
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x90724
146A
Lucky Ticket
implementation
800
x14936
144A
Arrival of the General
implementation
800
x93654
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x81240
136A
Presents
implementation
800
x114804
119A
Epic Game
implementation
800
x27248
116A
Tram
implementation
800
x138390
112A
Petya and Strings
implementation
,
strings
800
x219312
110A
Nearly Lucky Number
implementation
800
x150396
104A
Blackjack
implementation
800
x15225
99A
Help Far Away Kingdom
strings
800
x6637
92A
Chips
implementation
,
math
800
x18598
80A
Panoramix's Prediction
brute force
800
x52042
78A
Haiku
implementation
,
strings
800
x12310
71A
Way Too Long Words
strings
800
x372265
61A
Ultra-Fast Mathematician
implementation
800
x108344
59A
Word
implementation
,
strings
800
x170930
50A
Domino piling
greedy
,
math
800
x239520
49A
Sleuth
implementation
800
x13216
47A
Triangular numbers
brute force
,
math
800
x14849
46A
Ball Game
brute force
,
implementation
800
x8614
41A
Translation
implementation
,
strings
800
x141779
38A
Army
implementation
800
x20911
34A
Reconnaissance 2
implementation
800
x29397
32B
Borze
expression parsing
,
implementation
800
x62204
32A
Reconnaissance
brute force
800
x12347
22A
Second Order Statistics
brute force
800
x21775
16A
Flag
implementation
800
x14134
14A
Letter
implementation
800
x10499
12A
Super Agent
implementation
800
x12917
9A
Die Roll
math
,
probabilities
800
x55343
4A
Watermelon
brute force
,
math
800
x506354
←
1
2
...
7
8
9
→
User lists
Name