Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 973 (Div. 2)
16:20:01
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
401A
Vanya and Cards
implementation
,
math
800
x16147
386A
Second-Price Auction
implementation
800
x6201
384A
Coder
implementation
800
x16104
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x64917
378A
Playing with Dice
brute force
800
x23751
363A
Soroban
implementation
800
x10716
361A
Levko and Table
constructive algorithms
,
implementation
800
x16618
344A
Magnets
implementation
800
x119018
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x211194
330A
Cakeminator
brute force
,
implementation
800
x28347
306A
Candies
implementation
800
x6762
302A
Eugeny and Array
implementation
800
x9064
294A
Shaass and Oskols
implementation
,
math
800
x23329
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x6073
282A
Bit++
implementation
800
x256807
281A
Word Capitalization
implementation
,
strings
800
x208731
278A
Circle Line
implementation
800
x11632
271A
Beautiful Year
brute force
800
x136152
268A
Games
brute force
800
x85575
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x133762
266A
Stones on the Table
implementation
800
x188607
265A
Colorful Stones (Simplified Edition)
implementation
800
x36432
263A
Beautiful Matrix
implementation
800
x240905
262A
Roma and Lucky Numbers
implementation
800
x19827
255A
Greg's Workout
implementation
800
x28422
248A
Cupboards
implementation
800
x22160
245A
System Administrator
implementation
800
x8386
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x207193
233A
Perfect Permutation
implementation
,
math
800
x42127
231A
Team
brute force
,
greedy
800
x320299
228A
Is your horseshoe on the other hoof?
implementation
800
x108713
214A
System of Equations
brute force
800
x35081
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x16682
200B
Drinks
implementation
,
math
800
x114744
181A
Series of Crimes
brute force
,
geometry
,
implementation
800
x7025
177A2
Good Matrix Elements
implementation
800
x7247
177A1
Good Matrix Elements
implementation
800
x8532
172A
Phone Code
*special problem
,
brute force
,
implementation
800
x6094
169A
Chores
sortings
800
x6898
158A
Next Round
*special problem
,
implementation
800
x246129
157A
Game Outcome
brute force
800
x7559
155A
I_love_\%username\%
brute force
800
x74674
151A
Soft Drinking
implementation
,
math
800
x71909
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x91755
146A
Lucky Ticket
implementation
800
x15017
144A
Arrival of the General
implementation
800
x95032
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x82217
136A
Presents
implementation
800
x116312
119A
Epic Game
implementation
800
x27324
116A
Tram
implementation
800
x140113
112A
Petya and Strings
implementation
,
strings
800
x222082
110A
Nearly Lucky Number
implementation
800
x152726
104A
Blackjack
implementation
800
x15298
99A
Help Far Away Kingdom
strings
800
x6663
92A
Chips
implementation
,
math
800
x18697
80A
Panoramix's Prediction
brute force
800
x52980
78A
Haiku
implementation
,
strings
800
x12400
71A
Way Too Long Words
strings
800
x377862
61A
Ultra-Fast Mathematician
implementation
800
x109555
59A
Word
implementation
,
strings
800
x173262
50A
Domino piling
greedy
,
math
800
x243074
49A
Sleuth
implementation
800
x13351
47A
Triangular numbers
brute force
,
math
800
x14957
46A
Ball Game
brute force
,
implementation
800
x8652
41A
Translation
implementation
,
strings
800
x143664
38A
Army
implementation
800
x21035
34A
Reconnaissance 2
implementation
800
x29674
32B
Borze
expression parsing
,
implementation
800
x63004
32A
Reconnaissance
brute force
800
x12452
22A
Second Order Statistics
brute force
800
x22005
16A
Flag
implementation
800
x14234
14A
Letter
implementation
800
x10564
12A
Super Agent
implementation
800
x12991
9A
Die Roll
math
,
probabilities
800
x56040
4A
Watermelon
brute force
,
math
800
x515579
←
1
2
...
7
8
9
→
User lists
Name