Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rayan
→ Pay attention
Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
5 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
1770A
Koxia and Whiteboards
brute force
,
greedy
1000
x23667
1769C1
Подкрутка I
*special problem
,
brute force
,
dp
,
greedy
1200
x976
1769B1
Копирование файлов I
*special problem
,
brute force
,
implementation
,
math
1000
x1378
1769A
Узкая дорога
*special problem
,
math
800
x1972
1768B
Quick Sort
greedy
,
math
900
x23296
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x29079
1767B
Block Towers
data structures
,
greedy
,
sortings
800
x20474
1767A
Cut the Triangle
implementation
800
x20656
1766B
Notepad#
implementation
1000
x21291
1766A
Extremely Round
brute force
,
implementation
800
x27381
1765M
Minimum LCM
math
,
number theory
1000
x16317
1765E
Exchange
brute force
,
math
1000
x10225
1765B
Broken Keyboard
greedy
800
x9115
1764B
Doremy's Perfect Math Class
math
,
number theory
900
x16003
1764A
Doremy's Paint
greedy
800
x16673
1763B
Incinerate
binary search
,
brute force
,
data structures
,
implementation
,
math
,
sortings
1200
x14753
1763A
Absolute Maximization
bitmasks
,
constructive algorithms
,
greedy
,
math
800
x15772
1762B
Make Array Good
constructive algorithms
,
implementation
,
number theory
,
sortings
1100
x17058
1762A
Divide and Conquer
greedy
,
math
,
number theory
800
x19305
1761B
Elimination of a Ring
constructive algorithms
,
greedy
,
implementation
1000
x13518
1761A
Two Permutations
brute force
,
constructive algorithms
800
x20306
1760E
Binary Inversions
data structures
,
greedy
,
math
1100
x20534
1760D
Challenging Valleys
implementation
,
two pointers
1000
x23946
1760C
Advantage
data structures
,
implementation
,
sortings
800
x37781
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x45262
1760A
Medium Number
implementation
,
sortings
800
x61211
1759C
Thermostat
greedy
,
math
,
shortest paths
1100
x17869
1759B
Lost Permutation
math
800
x22347
1759A
Yes-Yes?
implementation
,
strings
800
x30278
1758B
XOR = Average
constructive algorithms
900
x21433
1758A
SSeeeeiinngg DDoouubbllee
constructive algorithms
,
strings
800
x25337
1754B
Kevin and Permutation
constructive algorithms
,
greedy
,
math
800
x18981
1754A
Technical Support
greedy
800
x23362
1750B
Maximum Substring
brute force
,
greedy
,
implementation
800
x16277
1750A
Indirect Sort
constructive algorithms
,
implementation
,
math
800
x17112
1749B
Death's Blessing
greedy
900
x21090
1749A
Cowardly Rooks
greedy
,
implementation
800
x22402
1748A
The Ultimate Square
math
800
x24177
1747C
Swap Game
games
1200
x21411
1747B
BAN BAN
constructive algorithms
900
x23168
1747A
Two Groups
constructive algorithms
,
greedy
800
x25052
1746B
Rebellion
constructive algorithms
,
greedy
,
two pointers
800
x17289
1746A
Maxmina
constructive algorithms
,
greedy
800
x19885
1744D
Divisibility by 2^n
greedy
,
math
,
sortings
1200
x21688
1744C
Traffic Light
binary search
,
implementation
,
two pointers
1000
x28148
1744B
Even-Odd Increments
implementation
,
math
800
x23621
1744A
Number Replacement
greedy
,
implementation
800
x27275
1743C
Save the Magazines
constructive algorithms
,
dp
,
greedy
1100
x19307
1743B
Permutation Value
constructive algorithms
,
greedy
800
x22297
1743A
Password
brute force
,
combinatorics
,
implementation
,
math
800
x26920
1742E
Scuza
binary search
,
greedy
,
math
1200
x25394
1742D
Coprime
brute force
,
greedy
,
number theory
1100
x24191
1742C
Stripes
implementation
900
x33493
1742B
Increasing
greedy
,
implementation
,
sortings
800
x48695
1742A
Sum
implementation
800
x75195
1741C
Minimize the Thickness
brute force
,
greedy
,
math
,
two pointers
1100
x17874
1741B
Funny Permutation
constructive algorithms
,
math
800
x25553
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x31110
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13787
1740A
Factorise N+M
constructive algorithms
,
number theory
800
x20420
1739B
Array Recovery
constructive algorithms
,
greedy
,
math
1100
x22571
1739A
Immobile Knight
implementation
800
x22868
1738B
Prefix Sum Addicts
constructive algorithms
,
greedy
,
math
,
sortings
1200
x15845
1738A
Glory Addicts
greedy
,
implementation
,
sortings
800
x13562
1737A
Ela Sorting Books
greedy
,
implementation
,
strings
900
x10178
1736B
Playing with GCD
math
,
number theory
1200
x18203
1736A
Make A Equal to B
brute force
,
greedy
,
sortings
800
x22924
1735B
Tea with Tangerines
greedy
,
math
900
x18304
1735A
Working Week
constructive algorithms
,
greedy
,
math
800
x20353
1734C
Removing Smallest Multiples
greedy
,
math
1200
x19079
1734B
Bright, Nice, Brilliant
constructive algorithms
800
x15866
1734A
Select Three Sticks
brute force
,
greedy
,
sortings
800
x21290
1733B
Rule of League
constructive algorithms
,
math
900
x19853
1733A
Consecutive Sum
greedy
,
sortings
800
x21040
1732B
Ugu
brute force
,
dp
,
greedy
,
implementation
900
x15186
1732A
Bestie
brute force
,
combinatorics
,
constructive algorithms
,
implementation
,
math
,
number theory
1000
x15172
1731B
Kill Demodogs
greedy
,
math
1100
x18635
1731A
Joey Takes Money
greedy
,
math
800
x22699
1730C
Minimum Notation
data structures
,
greedy
,
math
,
sortings
1200
x16618
1730A
Planets
data structures
,
greedy
,
sortings
800
x23180
1729D
Friends and the Restaurant
greedy
,
sortings
,
two pointers
1200
x21140
1729C
Jumping on Tiles
constructive algorithms
,
strings
1100
x20172
1729B
Decode String
greedy
,
strings
800
x30468
1729A
Two Elevators
math
800
x40969
1728B
Best Permutation
constructive algorithms
,
greedy
800
x20189
1728A
Colored Balls: Revisited
brute force
,
greedy
,
implementation
,
sortings
800
x24727
1726B
Mainak and Interesting Sequence
bitmasks
,
constructive algorithms
,
math
1100
x15236
1726A
Mainak and Array
greedy
,
math
900
x22416
1725B
Basketball Together
binary search
,
greedy
,
sortings
1000
x14534
1725A
Accumulation of Dominoes
math
800
x9313
1722D
Line
greedy
,
sortings
1100
x23604
1722C
Word Game
data structures
,
implementation
800
x31499
1722B
Colourblindness
implementation
800
x47062
1722A
Spell Check
implementation
800
x51930
1721B
Deadly Laser
implementation
1000
x22337
1721A
Image
greedy
,
implementation
800
x27119
1720C
Corners
greedy
,
implementation
1200
x16909
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x21292
1720A
Burenka Plays with Fractions
math
,
number theory
900
x22524
1719B
Mathematical Circus
constructive algorithms
,
math
800
x18593
←
1
2
...
4
5
6
7
8
...
23
24
→
User lists
Name