Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Please read
the new rule regarding the restriction on the use of AI tools
.
×
→ Pay attention
Before contest
Kotlin Heroes: Episode 11
11:01:15
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
1266E
Spaceship Solitaire
data structures
,
greedy
,
implementation
2100
x2234
1266D
Decreasing Debts
constructive algorithms
,
data structures
,
graphs
,
greedy
,
implementation
,
math
,
two pointers
2000
x3627
1266C
Diverse Matrix
constructive algorithms
,
greedy
,
math
,
number theory
1400
x9693
1265E
Beautiful Mirrors
data structures
,
dp
,
math
,
probabilities
2100
x3655
1264F
Beautiful Fibonacci Problem
constructive algorithms
,
number theory
3500
x936
1264E
Beautiful League
constructive algorithms
,
flows
,
graph matchings
2700
x814
1264D2
Beautiful Bracket Sequence (hard version)
combinatorics
,
probabilities
2900
x967
1264D1
Beautiful Bracket Sequence (easy version)
combinatorics
,
dp
,
probabilities
2600
x1277
1264C
Beautiful Mirrors with queries
data structures
,
probabilities
2400
x1155
1264B
Beautiful Sequence
brute force
,
constructive algorithms
,
greedy
1900
x5802
1264A
Beautiful Regional Contest
greedy
,
implementation
1500
x10064
1263F
Economic Difficulties
data structures
,
dfs and similar
,
dp
,
flows
,
graphs
,
trees
2400
x875
1263E
Editor
data structures
,
implementation
2100
x2789
1263D
Secret Passwords
dfs and similar
,
dsu
,
graphs
1500
x14001
1263C
Everyone is a Winner!
binary search
,
math
,
meet-in-the-middle
,
number theory
1400
x13711
1263B
PIN Codes
greedy
,
implementation
1400
x11369
1261F
Xor-Set
bitmasks
,
divide and conquer
,
math
3100
x387
1260F
Colored Tree
data structures
,
trees
2700
x539
1260E
Tournament
brute force
,
dp
,
greedy
2400
x1720
1260D
A Game with Traps
binary search
,
dp
,
greedy
,
sortings
1900
x3847
1260C
Infinite Fence
greedy
,
math
,
number theory
1700
x8239
1257G
Divisor Set
divide and conquer
,
fft
,
greedy
,
math
,
number theory
2600
x609
1257F
Make Them Similar
bitmasks
,
brute force
,
hashing
,
meet-in-the-middle
2400
x2014
1257E
The Contest
data structures
,
dp
,
greedy
2000
x4223
1257D
Yet Another Monster Killing Problem
binary search
,
data structures
,
dp
,
greedy
,
sortings
,
two pointers
1700
x7542
1256F
Equalizing Two Strings
constructive algorithms
,
sortings
,
strings
2000
x3310
1256E
Yet Another Division Into Teams
dp
,
greedy
,
sortings
2000
x4123
1256D
Binary String Minimizing
greedy
1500
x12056
1256C
Platforms Jumping
greedy
1700
x6891
1256B
Minimize the Permutation
greedy
1400
x13080
1255C
League of Leesins
constructive algorithms
,
implementation
1600
x6705
1254E
Send Tree to Charlie
combinatorics
,
dfs and similar
,
dsu
,
trees
3300
x265
1254D
Tree Queries
data structures
,
probabilities
,
trees
2700
x1221
1254C
Point Ordering
constructive algorithms
,
geometry
,
interactive
,
math
2300
x1420
1254B2
Send Boxes to Alice (Hard Version)
constructive algorithms
,
greedy
,
math
,
number theory
,
ternary search
,
two pointers
2100
x3167
1254B1
Send Boxes to Alice (Easy Version)
constructive algorithms
,
greedy
,
math
,
number theory
,
ternary search
,
two pointers
1800
x4657
1254A
Feeding Chicken
constructive algorithms
,
greedy
,
implementation
1700
x5179
1253F
Cheap Robot
binary search
,
dsu
,
graphs
,
shortest paths
,
trees
2500
x1779
1253E
Antenna Coverage
data structures
,
dp
,
greedy
,
sortings
2200
x2832
1253D
Harmonious Graph
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
sortings
1700
x9214
1253C
Sweets Eating
dp
,
greedy
,
math
,
sortings
1500
x14238
1253B
Silly Mistake
greedy
,
implementation
1400
x11184
1252L
Road Construction
flows
,
graphs
2300
x581
1252K
Addition Robot
data structures
,
math
,
matrices
2100
x1853
1252J
Tiling Terrace
brute force
,
dp
2300
x719
1252I
Mission Possible
3000
x31
1252H
Twin Buildings
greedy
,
implementation
1800
x2629
1252G
Performance Review
data structures
2100
x1423
1252F
Regular Forestation
hashing
,
trees
2400
x928
1252E
Songwriter
greedy
,
two pointers
2200
x1238
1252D
Find String in a Grid
data structures
,
dp
,
strings
,
trees
3000
x343
1252C
Even Path
data structures
,
implementation
1600
x3718
1252B
Cleaning Robots
dp
,
trees
2300
x516
1251F
Red-White Fence
combinatorics
,
fft
2500
x820
1251E2
Voting (Hard Version)
binary search
,
data structures
,
greedy
2400
x2641
1251E1
Voting (Easy Version)
data structures
,
dp
,
greedy
2300
x2336
1251D
Salary Changing
binary search
,
greedy
,
sortings
1900
x5939
1251C
Minimize The Integer
greedy
,
two pointers
1600
x12392
1251B
Binary Palindromes
greedy
,
strings
1400
x11011
1250N
Wires
dfs and similar
,
graphs
,
greedy
2000
x1584
1250M
SmartGarden
constructive algorithms
,
divide and conquer
2500
x360
1250L
Divide The Students
binary search
,
greedy
,
math
1500
x4098
1250K
Projectors
flows
,
graphs
3100
x203
1250J
The Parade
binary search
,
greedy
1800
x2934
1250I
Show Must Go On
binary search
,
brute force
,
greedy
,
shortest paths
3100
x134
1250H
Happy Birthday
math
1500
x4052
1250G
Discarding Game
dp
,
greedy
,
two pointers
2300
x721
1250E
The Coronation
graphs
,
implementation
2300
x814
1250D
Conference Problem
dp
3000
x176
1250C
Trip to Saint Petersburg
data structures
2100
x1313
1250B
The Feast and the Bus
brute force
,
constructive algorithms
,
greedy
,
math
1800
x2608
1250A
Berstagram
implementation
1400
x4079
1249F
Maximum Weight Subset
dp
,
trees
2200
x2347
1249E
By Elevator or Stairs?
dp
,
shortest paths
1700
x9678
1249D2
Too Many Segments (hard version)
data structures
,
greedy
,
sortings
1800
x5242
1249D1
Too Many Segments (easy version)
greedy
1800
x5111
1249C2
Good Numbers (hard version)
binary search
,
greedy
,
math
,
meet-in-the-middle
1500
x12618
1248D1
The World Is Just a Programming Task (Easy Version)
brute force
,
dp
,
greedy
,
implementation
2000
x2385
1246F
Cursor Distance
3500
x164
1245F
Daniel and Spring Cleaning
bitmasks
,
brute force
,
combinatorics
,
dp
2300
x2001
1245E
Hyakugoku and Ladders
dp
,
probabilities
,
shortest paths
2300
x1271
1245D
Shichikuji and Power Grid
dsu
,
graphs
,
greedy
,
shortest paths
,
trees
1900
x7546
1245C
Constanze's Machine
dp
1400
x17509
1244G
Running in Pairs
constructive algorithms
,
greedy
,
math
2400
x1351
1244F
Chips
constructive algorithms
,
implementation
2300
x1535
1244E
Minimizing Difference
binary search
,
constructive algorithms
,
greedy
,
sortings
,
ternary search
,
two pointers
2000
x5099
1244D
Paint the Tree
brute force
,
constructive algorithms
,
dp
,
graphs
,
implementation
,
trees
1800
x7560
1244C
The Football Season
brute force
,
math
,
number theory
2000
x7608
1243B2
Character Swap (Hard Version)
strings
1600
x7085
1242E
Planar Perimeter
constructive algorithms
,
graphs
3200
x130
1242D
Number Discovery
math
3400
x199
1242C
Sum Balance
bitmasks
,
dfs and similar
,
dp
,
graphs
2400
x1667
1242B
0-1 MST
dfs and similar
,
dsu
,
graphs
,
sortings
1900
x7509
1242A
Tile Painting
constructive algorithms
,
math
,
number theory
1500
x12582
1240F
Football
graphs
3100
x249
1239F
Swiper, no swiping!
graphs
,
implementation
3400
x266
1239E
Turtle
dp
,
implementation
3100
x942
1239D
Catowice City
2-sat
,
dfs and similar
,
graph matchings
,
graphs
2400
x2019
1239C
Queue in the Train
data structures
,
greedy
,
implementation
2300
x1345
1239B
The World Is Just a Programming Task (Hard Version)
implementation
2500
x1049
←
1
2
...
26
27
28
29
30
...
68
69
→
User lists
Name