Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Pinely Round 4 (Div. 1 + Div. 2)
34:43:13
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
1996G
Penacony
brute force
,
data structures
,
dp
,
hashing
x409
1996F
Bomb
binary search
,
greedy
,
math
x1486
1996E
Decode
brute force
,
combinatorics
,
implementation
x4378
1996D
Fun
binary search
,
brute force
,
number theory
x8364
1996C
Sort
strings
x14176
1996B
Scale
implementation
x23133
1996A
Legs
math
x28000
1995E2
Let Me Teach You a Lesson (Hard Version)
bitmasks
,
data structures
,
dp
,
graphs
,
matrices
,
two pointers
x122
1995E1
Let Me Teach You a Lesson (Easy Version)
data structures
,
dp
,
matrices
,
two pointers
x183
1995D
Cases
bitmasks
,
brute force
,
dp
,
strings
x1224
1995C
Squaring
brute force
,
constructive algorithms
,
greedy
,
implementation
,
math
,
number theory
x5372
1995B2
Bouquet (Hard Version)
binary search
,
data structures
,
greedy
,
math
,
sortings
,
two pointers
x6153
1995B1
Bouquet (Easy Version)
binary search
,
brute force
,
greedy
,
sortings
,
two pointers
x13292
1995A
Diagonals
brute force
,
greedy
,
implementation
,
math
x18500
1994H
Fortnite
combinatorics
,
constructive algorithms
,
games
,
greedy
,
hashing
,
interactive
,
math
,
number theory
,
strings
x97
1994G
Minecraft
bitmasks
,
brute force
,
dp
,
graphs
,
math
x616
1994F
Stardew Valley
constructive algorithms
,
dfs and similar
,
graphs
,
trees
x832
1994E
Wooden Game
bitmasks
,
greedy
,
math
,
trees
x3040
1994D
Funny Game
constructive algorithms
,
dsu
,
graphs
,
greedy
,
math
,
number theory
,
trees
x4022
1994C
Hungry Games
binary search
,
dp
,
two pointers
x7945
1994B
Fun Game
bitmasks
,
constructive algorithms
,
greedy
,
math
x13236
1994A
Diverse Game
constructive algorithms
,
greedy
,
implementation
x16817
1992G
Ultra-Meow
combinatorics
,
dp
,
math
2000
x2245
1992F
Valuable Cards
brute force
,
dp
,
greedy
,
number theory
,
two pointers
1900
x4599
1992E
Novice's Mistake
brute force
,
constructive algorithms
,
implementation
,
math
,
strings
1700
x7657
1992D
Test of Love
dp
,
greedy
,
implementation
1200
x17280
1992C
Gorilla and Permutation
constructive algorithms
,
math
900
x25274
1992B
Angry Monk
greedy
,
math
,
sortings
800
x29684
1992A
Only Pluses
brute force
,
constructive algorithms
,
greedy
,
math
,
sortings
800
x35007
1990F
Polygonal Segments
brute force
,
data structures
,
divide and conquer
,
dp
,
greedy
,
two pointers
x147
1990E2
Catch the Mole(Hard Version)
binary search
,
data structures
,
dfs and similar
,
divide and conquer
,
interactive
,
trees
x600
1990E1
Catch the Mole(Easy Version)
binary search
,
data structures
,
dfs and similar
,
interactive
,
trees
x656
1990D
Grid Puzzle
bitmasks
,
brute force
,
dp
,
greedy
,
implementation
x4294
1990C
Mad MAD Sum
brute force
,
greedy
,
math
x8369
1990B
Array Craft
constructive algorithms
,
greedy
x12734
1990A
Submission Bait
brute force
,
games
,
greedy
,
sortings
x17397
1989F
Simultaneous Coloring
dfs and similar
,
divide and conquer
,
graphs
3000
x319
1989E
Distance to Different
combinatorics
,
dp
,
math
2300
x1570
1989D
Smithing Skill
brute force
,
data structures
,
dp
,
greedy
,
math
,
sortings
,
two pointers
1900
x5009
1989C
Two Movies
greedy
,
math
1400
x15681
1989B
Substring and Subsequence
brute force
,
greedy
,
strings
1200
x17581
1989A
Catch the Coin
implementation
800
x23674
1988F
Heartbeat
combinatorics
,
dp
,
fft
,
math
3000
x104
1988E
Range Minimum Sum
binary search
,
brute force
,
data structures
,
divide and conquer
,
implementation
2300
x1030
1988D
The Omnipotent Monster Killer
brute force
,
dfs and similar
,
dp
,
trees
2000
x3904
1988C
Increasing Sequence with Fixed OR
bitmasks
,
constructive algorithms
,
greedy
1300
x13737
1988B
Make Majority
greedy
,
implementation
900
x19094
1988A
Split the Multiset
brute force
,
greedy
,
implementation
,
math
900
x19591
1987H
Fumo Temple
interactive
3500
x71
1987G2
Spinning Round (Hard Version)
divide and conquer
,
dp
,
trees
3500
x84
1987G1
Spinning Round (Easy Version)
divide and conquer
,
dp
,
trees
2900
x200
1987F2
Interesting Problem (Hard Version)
dp
2600
x837
1987F1
Interesting Problem (Easy Version)
dp
2500
x952
1987E
Wonderful Tree!
brute force
,
data structures
,
dfs and similar
,
dsu
,
greedy
,
trees
2000
x2791
1987D
World is Mine
dp
,
games
1800
x6034
1987C
Basil's Garden
dp
,
greedy
1200
x15142
1987B
K-Sort
greedy
1000
x17837
1987A
Upload More RAM
greedy
,
math
800
x22465
1986G2
Permutation Problem (Hard Version)
brute force
,
data structures
,
hashing
,
math
,
number theory
2500
x868
1986G1
Permutation Problem (Simple Version)
binary search
,
brute force
,
combinatorics
,
data structures
,
math
,
number theory
2200
x1225
1986F
Non-academic Problem
dfs and similar
,
graphs
,
trees
1900
x3756
1986E
Beautiful Array
greedy
,
math
,
number theory
,
sortings
1700
x7557
1986D
Mathematical Problem
brute force
,
dp
,
greedy
,
implementation
,
math
,
two pointers
1400
x13491
1986C
Update Queries
data structures
,
greedy
,
sortings
1100
x20953
1986B
Matrix Stabilization
brute force
,
data structures
,
greedy
,
sortings
1000
x24337
1986A
X Axis
brute force
,
geometry
,
math
,
sortings
800
x36390
1985H2
Maximize the Largest Component (Hard Version)
data structures
,
dfs and similar
,
dp
,
dsu
,
implementation
2200
x1286
1985H1
Maximize the Largest Component (Easy Version)
brute force
,
data structures
,
dfs and similar
,
dsu
,
graphs
,
implementation
1700
x4717
1985G
D-Function
combinatorics
,
math
,
number theory
1600
x7938
1985F
Final Boss
binary search
,
data structures
1500
x13088
1985E
Secret Box
brute force
,
combinatorics
,
math
1200
x17765
1985D
Manhattan Circle
implementation
,
math
900
x30859
1985C
Good Prefixes
greedy
1000
x28479
1985B
Maximum Multiple Sum
brute force
,
math
,
number theory
800
x40524
1985A
Creating Words
implementation
,
strings
800
x45375
1984H
Tower Capturing
combinatorics
,
dp
,
geometry
3300
x144
1984G
Magic Trick II
constructive algorithms
,
implementation
,
sortings
3200
x201
1984F
Reconstruction
brute force
,
dp
,
math
2500
x812
1984E
Shuffle
dp
,
greedy
,
trees
2400
x1232
1984D
''a'' String Problem
brute force
,
hashing
,
implementation
,
math
,
string suffix structures
,
strings
2000
x2875
1984C2
Magnitude (Hard Version)
combinatorics
,
dp
,
greedy
,
math
1700
x6529
1984C1
Magnitude (Easy Version)
dp
,
greedy
,
math
1300
x14672
1984B
Large Addition
implementation
,
math
1100
x16672
1984A
Strange Splitting
constructive algorithms
800
x19651
1983G
Your Loss
bitmasks
,
brute force
,
dp
,
trees
3000
x171
1983F
array-value
binary search
,
bitmasks
,
data structures
,
greedy
,
two pointers
2500
x963
1983E
I Love Balls
combinatorics
,
math
,
probabilities
2300
x1697
1983D
Swap Dilemma
constructive algorithms
,
data structures
,
divide and conquer
,
greedy
,
math
,
sortings
1700
x7081
1983C
Have Your Cake and Eat It Too
binary search
,
brute force
,
greedy
,
implementation
1400
x10905
1983B
Corner Twist
constructive algorithms
,
greedy
,
implementation
,
math
1200
x14457
1983A
Array Divisibility
constructive algorithms
,
math
800
x23480
1982F
Sorting Problem Again
binary search
,
data structures
,
sortings
2600
x803
1982E
Number of k-good subarrays
bitmasks
,
brute force
,
combinatorics
,
divide and conquer
,
dp
,
math
,
meet-in-the-middle
2300
x1359
1982D
Beauty of the mountains
brute force
,
data structures
,
implementation
,
math
,
number theory
1700
x6204
1982C
Boring Day
binary search
,
data structures
,
dp
,
greedy
,
two pointers
1200
x15275
1982B
Collatz Conjecture
brute force
,
implementation
,
math
,
number theory
1200
x15206
1982A
Soccer
greedy
,
implementation
,
math
,
sortings
800
x22982
1981F
Turtle and Paths on a Tree
data structures
,
dp
,
trees
3000
x218
1981E
Turtle and Intersected Segments
data structures
,
dsu
,
graphs
,
greedy
2600
x712
1981D
Turtle and Multiplication
constructive algorithms
,
dfs and similar
,
graphs
,
number theory
2400
x1379
←
1
2
3
...
96
97
→
User lists
Name