Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams)
16:15:45
Register now »
→ 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
1608A
Find Array
constructive algorithms
,
math
800
x19129
1607C
Minimum Extraction
brute force
,
sortings
1000
x25152
1607B
Odd Grasshopper
math
900
x26798
1607A
Linear Keyboard
implementation
,
strings
800
x37625
1606B
Update Files
greedy
,
implementation
,
math
1100
x18720
1606A
AB Balance
strings
900
x25127
1605B
Reverse Sort
greedy
,
sortings
1000
x18124
1605A
A.M. Deviation
math
,
number theory
800
x20681
1604B
XOR Specia-LIS-t
1100
x15691
1604A
Era
greedy
800
x21568
1602B
Divine Array
constructive algorithms
,
implementation
1100
x14149
1602A
Two Subsequences
implementation
800
x19048
1598C
Delete Two Elements
data structures
,
dp
,
implementation
,
math
,
two pointers
1200
x21073
1598B
Groups
brute force
,
implementation
1000
x16139
1598A
Computer Game
brute force
,
dfs and similar
,
dp
,
implementation
800
x23533
1594C
Make Them Equal
brute force
,
greedy
,
math
,
strings
1200
x19835
1594B
Special Numbers
bitmasks
,
math
1100
x20067
1594A
Consecutive Sum Riddle
math
800
x24834
1593D1
All are Same
math
,
number theory
1100
x20289
1593C
Save More Mice
binary search
,
greedy
,
greedy
1000
x25031
1593B
Make it Divisible by 25
dfs and similar
,
dp
,
greedy
,
math
,
math
900
x27641
1593A
Elections
math
800
x37021
1592B
Hemose Shopping
constructive algorithms
,
dsu
,
math
,
sortings
1200
x16057
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x22377
1585B
Array Eversion
greedy
900
x15209
1585A
Life of a Flower
implementation
800
x17902
1584C
Two Arrays
greedy
,
math
,
sortings
900
x16485
1584B
Coloring Rectangles
greedy
,
math
1000
x13409
1584A
Mathematical Addition
math
800
x14937
1583B
Omkar and Heavenly Tree
constructive algorithms
,
trees
1200
x12349
1583A
Windblume Ode
math
,
number theory
800
x13763
1582C
Grandma Capa Knits a Scarf
brute force
,
data structures
,
greedy
,
strings
,
two pointers
1200
x15912
1582B
Luntik and Subsequences
combinatorics
,
math
900
x20882
1582A
Luntik and Concerts
math
800
x18600
1581B
Diameter of Graph
constructive algorithms
,
graphs
,
greedy
,
math
1200
x11467
1581A
CQXYM Count Permutations
combinatorics
,
math
,
number theory
800
x13494
1579E1
Permutation Minimization by Deque
constructive algorithms
,
greedy
,
math
1000
x21807
1579B
Shifting Sort
implementation
,
sortings
1100
x18208
1579A
Casimir's String Solitaire
math
,
strings
800
x39065
1578E
Easy Scheduling
implementation
,
math
1200
x3847
1575A
Another Sorting Problem
data structures
,
sortings
,
strings
1100
x4607
1574B
Combinatorics Homework
combinatorics
,
greedy
,
math
1100
x17359
1574A
Regular Bracket Sequences
constructive algorithms
800
x21937
1573A
Countdown
greedy
800
x21208
1571A
Sequence of Comparisons
*special problem
800
x1325
1569B
Chess Tournament
constructive algorithms
1000
x18926
1569A
Balanced Substring
implementation
800
x25613
1567B
MEXor Mixup
bitmasks
,
greedy
1000
x23426
1567A
Domino Disaster
implementation
,
strings
800
x30214
1566D1
Seating Arrangements (easy version)
data structures
,
greedy
,
sortings
1100
x14046
1566C
MAX-MEX Cut
bitmasks
,
constructive algorithms
,
dp
,
greedy
1000
x17668
1566B
MIN-MEX Cut
bitmasks
,
constructive algorithms
,
dp
,
greedy
800
x19745
1566A
Median Maximization
binary search
,
greedy
,
math
800
x23516
1562B
Scenes From a Memory
brute force
,
constructive algorithms
,
implementation
,
math
,
number theory
1000
x19695
1562A
The Miracle and the Sleeper
greedy
,
math
800
x25677
1561A
Simply Strange Sort
brute force
,
implementation
,
sortings
800
x16609
1560C
Infinity Table
implementation
,
math
800
x26717
1560B
Who's Opposite?
math
800
x35899
1560A
Dislike of Threes
implementation
800
x60805
1559C
Mocha and Hiking
constructive algorithms
,
graphs
1200
x20631
1559B
Mocha and Red and Blue
dp
,
greedy
900
x22651
1559A
Mocha and Math
bitmasks
,
constructive algorithms
,
math
900
x31913
1557B
Moamen and k-subarrays
greedy
,
sortings
1100
x23532
1557A
Ezzat and Two Subsequences
brute force
,
math
,
sortings
800
x27988
1556A
A Variety of Operations
math
800
x18111
1555A
PizzaForces
brute force
,
math
900
x28253
1554A
Cherry
greedy
800
x29448
1553C
Penalty
bitmasks
,
brute force
,
dp
,
greedy
1200
x18010
1553A
Digits Sum
math
,
number theory
800
x31244
1552A
Subsequence Permutation
sortings
,
strings
800
x23939
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x29572
1551A
Polycarp and Coins
greedy
,
math
800
x51460
1550B
Maximum Cost Deletion
greedy
,
math
1000
x26581
1550A
Find The Array
greedy
,
math
800
x28222
1549B
Gregor and the Pawn Game
dfs and similar
,
dp
,
flows
,
graph matchings
,
graphs
,
greedy
,
implementation
800
x24554
1549A
Gregor and Cryptography
math
,
number theory
800
x32718
1547C
Pair Programming
greedy
,
two pointers
1100
x22794
1547B
Alphabetical Strings
greedy
,
implementation
,
strings
800
x26480
1547A
Shortest Path with Obstacle
implementation
,
math
800
x30569
1546B
AquaMoon and Stolen String
interactive
,
math
1200
x13195
1546A
AquaMoon and Two Arrays
brute force
,
greedy
800
x18236
1543B
Customising the Track
combinatorics
,
greedy
,
math
900
x23225
1543A
Exciting Bets
greedy
,
math
,
number theory
900
x28698
1542A
Odd Set
math
800
x45207
1541B
Pleasant Pairs
brute force
,
implementation
,
math
,
number theory
1200
x28968
1541A
Pretty Permutations
constructive algorithms
,
greedy
,
implementation
800
x29504
1539C
Stable Groups
greedy
,
sortings
1200
x23256
1539B
Love Song
dp
,
implementation
,
strings
800
x24670
1539A
Contest Start
combinatorics
,
geometry
,
greedy
,
math
1000
x20196
1538B
Friends and Candies
greedy
,
math
800
x31772
1538A
Stone Game
brute force
,
dp
,
greedy
800
x37121
1537C
Challenging Cliffs
constructive algorithms
,
greedy
,
implementation
,
math
1200
x27866
1537B
Bad Boy
constructive algorithms
,
greedy
,
math
900
x30421
1537A
Arithmetic Array
greedy
,
math
800
x37521
1536B
Prinzessin der Verurteilung
brute force
,
constructive algorithms
,
strings
1200
x19016
1536A
Omkar and Bad Story
brute force
,
constructive algorithms
800
x20230
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x30737
1535A
Fair Playoff
brute force
,
implementation
800
x50181
1534B
Histogram Ugliness
greedy
,
implementation
,
math
1100
x12528
1534A
Colour the Flag
brute force
,
implementation
800
x12771
←
1
2
...
7
8
9
10
11
...
23
24
→
User lists
Name