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ICPC Challenge
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Contest is running
2023-2024 ICPC, Asia Jakarta Regional Contest (Online Mirror, Unrated, ICPC Rules, Teams Preferred)
01:29:12
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Before contest
Educational Codeforces Round 159 (Rated for Div. 2)
06:29:12
Register now »
→ Filter Problems
Difficulty:
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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
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Problems
Submit
Status
Standings
Custom test
Problems
#
Name
158A
Next Round
*special problem
,
implementation
800
x214574
282A
Bit++
implementation
800
x211485
263A
Beautiful Matrix
implementation
800
x205657
112A
Petya and Strings
implementation
,
strings
800
x192409
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x181738
281A
Word Capitalization
implementation
,
strings
800
x179588
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x175997
118A
String Task
implementation
,
strings
1000
x168472
266A
Stones on the Table
implementation
800
x163639
791A
Bear and Big Brother
implementation
800
x162231
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x153236
59A
Word
implementation
,
strings
800
x147357
69A
Young Physicist
implementation
,
math
1000
x143737
977A
Wrong Subtraction
implementation
800
x141140
96A
Football
implementation
,
strings
900
x138280
110A
Nearly Lucky Number
implementation
800
x130244
734A
Anton and Danik
implementation
,
strings
800
x127532
41A
Translation
implementation
,
strings
800
x123332
116A
Tram
implementation
800
x122306
677A
Vanya and Fence
implementation
800
x119541
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x117811
1030A
In Search of an Easy Problem
implementation
800
x108911
467A
George and Accommodation
implementation
800
x105157
344A
Magnets
implementation
800
x102802
136A
Presents
implementation
800
x101172
486A
Calculating Function
implementation
,
math
800
x100300
200B
Drinks
implementation
,
math
800
x98548
61A
Ultra-Fast Mathematician
implementation
800
x95728
133A
HQ9+
implementation
900
x93536
228A
Is your horseshoe on the other hoof?
implementation
800
x93430
705A
Hulk
implementation
800
x92182
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x87168
469A
I Wanna Be the Guy
greedy
,
implementation
800
x84793
144A
Arrival of the General
implementation
800
x82400
520A
Pangram
implementation
,
strings
800
x81701
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x80705
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x78546
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x77754
443A
Anton and Letters
constructive algorithms
,
implementation
800
x77737
131A
cAPS lOCK
implementation
,
strings
1000
x76129
785A
Anton and Polyhedrons
implementation
,
strings
800
x75087
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x72253
4C
Registration System
data structures
,
hashing
,
implementation
1300
x70525
510A
Fox And Snake
implementation
800
x70245
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x66459
427A
Police Recruits
implementation
800
x66374
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x65368
1352A
Sum of Round Numbers
implementation
,
math
800
x64800
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x64540
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x63994
581A
Vasya the Hipster
implementation
,
math
800
x62647
339B
Xenia and Ringroad
implementation
1000
x62305
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x62206
451A
Game With Sticks
implementation
900
x59093
151A
Soft Drinking
implementation
,
math
800
x59009
466A
Cheap Travel
implementation
1200
x55436
1742A
Sum
implementation
800
x55064
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x54605
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x54457
1512A
Spy Detected!
brute force
,
implementation
800
x54325
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x53110
32B
Borze
expression parsing
,
implementation
800
x53052
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x53029
758A
Holiday Of Equality
implementation
,
math
800
x52910
1692A
Marathon
implementation
800
x52600
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x51978
1560A
Dislike of Threes
implementation
800
x51647
1367A
Short Substrings
implementation
,
strings
800
x51643
1676A
Lucky?
implementation
800
x50908
313A
Ilya and Bank Account
implementation
,
number theory
900
x50332
703A
Mishka and Game
implementation
800
x50123
1669A
Division?
implementation
800
x49497
1791A
Codeforces Checking
implementation
,
strings
800
x47663
431A
Black Square
implementation
800
x47558
500A
New Year Transportation
dfs and similar
,
graphs
,
implementation
1000
x47425
1760A
Medium Number
implementation
,
sortings
800
x47052
1807A
Plus or Minus
implementation
800
x47010
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x46906
1433A
Boring Apartments
implementation
,
math
800
x46327
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x45547
1619A
Square String?
implementation
,
strings
800
x44705
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x44584
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x43760
279B
Books
binary search
,
brute force
,
implementation
,
two pointers
1400
x43154
1535A
Fair Playoff
brute force
,
implementation
800
x43046
492A
Vanya and Cubes
implementation
800
x43040
707A
Brain's Photos
implementation
800
x43029
1850A
To My Critics
implementation
,
sortings
800
x42618
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x42613
1426A
Floor Number
implementation
,
math
800
x42337
379A
New Year Candles
implementation
1000
x42185
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x42151
1722A
Spell Check
implementation
800
x42147
270A
Fancy Fence
geometry
,
implementation
,
math
1100
x41277
1703B
ICPC Balloons
data structures
,
implementation
800
x41193
474B
Worms
binary search
,
implementation
1200
x40700
731A
Night at the Museum
implementation
,
strings
800
x40614
514A
Chewbaсca and Number
greedy
,
implementation
1200
x40402
1742B
Increasing
greedy
,
implementation
,
sortings
800
x40344
451B
Sort the Array
implementation
,
sortings
1300
x40295
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