Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rayan
→ Pay attention
Before contest
Codeforces Round 1002 (Div. 2)
02:24:38
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
995F
Cowmpany Cowmpensation
combinatorics
,
dp
,
math
,
trees
2700
x1291
995E
Number Clicker
divide and conquer
,
graphs
,
meet-in-the-middle
,
number theory
2700
x708
995D
Game
math
2500
x779
995C
Leaving the Bar
brute force
,
data structures
,
geometry
,
greedy
,
math
,
sortings
2300
x1930
995B
Suit and Tie
greedy
,
implementation
,
math
1400
x7137
995A
Tesla
constructive algorithms
,
implementation
2100
x1714
994B
Knights of a Polygonal Table
greedy
,
implementation
,
sortings
1400
x5778
993F
The Moral Dilemma
3200
x62
993E
Nikita and Order Statistics
chinese remainder theorem
,
fft
,
math
2300
x1462
993D
Compute Power
binary search
,
dp
,
greedy
2500
x762
993C
Careful Maneuvering
bitmasks
,
brute force
,
geometry
2100
x1717
993B
Open Communication
bitmasks
,
brute force
1900
x1971
993A
Two Squares
geometry
,
implementation
1600
x4184
992E
Nastya and King-Shamans
binary search
,
data structures
2500
x1488
992D
Nastya and a Game
brute force
,
implementation
,
math
2100
x1668
992C
Nastya and a Wardrobe
math
1600
x4640
992B
Nastya Studies Informatics
math
,
number theory
1600
x6355
991F
Concise and clear
brute force
,
greedy
,
implementation
,
math
2700
x311
991E
Bus Number
brute force
,
combinatorics
,
math
1800
x3532
991D
Bishwock
dp
,
greedy
1500
x7283
991C
Candies
binary search
,
implementation
1500
x10721
990G
GCD Counting
divide and conquer
,
dp
,
dsu
,
number theory
,
trees
2400
x1925
990F
Flow Control
dfs and similar
,
dp
,
greedy
,
trees
2400
x933
990E
Post Lamps
brute force
,
greedy
2100
x2051
990D
Graph And Its Complement
constructive algorithms
,
graphs
,
implementation
1700
x3878
990C
Bracket Sequences Concatenation Problem
implementation
1500
x5969
989E
A Trance of Nightfall
dp
,
geometry
,
matrices
,
probabilities
2700
x254
989D
A Shade of Moonlight
binary search
,
geometry
,
math
,
sortings
,
two pointers
2500
x521
989C
A Mist of Florescence
constructive algorithms
,
graphs
1800
x3852
988F
Rain and Umbrellas
dp
2100
x2378
988E
Divisibility by 25
brute force
,
greedy
2100
x4054
988D
Points and Powers of Two
brute force
,
math
1800
x7429
988C
Equal Sums
implementation
,
sortings
1400
x10394
987C
Three displays
brute force
,
dp
,
implementation
1400
x13803
986F
Oppa Funcan Style Remastered
graphs
,
math
,
number theory
,
shortest paths
3300
x649
986E
Prince's Problem
brute force
,
data structures
,
math
,
number theory
,
trees
2800
x808
986D
Perfect Encoding
fft
,
math
3100
x333
986C
AND Graph
bitmasks
,
dfs and similar
,
dsu
,
graphs
2500
x2497
986B
Petr and Permutations
combinatorics
,
math
1800
x4756
986A
Fair
graphs
,
greedy
,
number theory
,
shortest paths
1600
x7185
985G
Team Players
combinatorics
2700
x553
985F
Isomorphic Strings
hashing
,
strings
2300
x1890
985E
Pencils and Boxes
binary search
,
data structures
,
dp
,
greedy
,
two pointers
2100
x3732
985D
Sand Fortress
binary search
,
constructive algorithms
,
math
2100
x2601
985C
Liebig's Barrels
greedy
1500
x5828
983E
NN country
binary search
,
data structures
,
trees
2800
x994
983D
Arkady and Rectangles
data structures
3300
x419
983C
Elevator
dp
,
graphs
,
shortest paths
2400
x844
983B
XOR-pyramid
dp
1800
x5680
983A
Finite or not?
implementation
,
math
1700
x4581
982F
The Meeting Place Cannot Be Changed
dfs and similar
,
graphs
2700
x198
982E
Billiard
geometry
,
number theory
2600
x730
982D
Shark
brute force
,
data structures
,
dsu
,
trees
1900
x2366
982C
Cut 'em all!
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
1500
x12051
981H
K Paths
combinatorics
,
data structures
,
dp
,
fft
,
math
3100
x272
981G
Magic multisets
data structures
2500
x702
981F
Round Marriage
binary search
,
graph matchings
,
greedy
2500
x802
981E
Addition on Segments
bitmasks
,
data structures
,
divide and conquer
,
dp
2200
x2177
981D
Bookshelves
bitmasks
,
dp
,
greedy
1900
x3292
981C
Useful Decomposition
implementation
,
trees
1400
x5643
980F
Cactus to Tree
dp
,
graphs
,
trees
2900
x203
980E
The Number Games
data structures
,
greedy
,
trees
2200
x1963
980D
Perfect Groups
dp
,
math
,
number theory
2100
x2759
980C
Posterized
games
,
greedy
1700
x3809
980B
Marlin
constructive algorithms
1600
x4764
979E
Kuro and Topological Parity
dp
2400
x696
979D
Kuro and GCD and XOR and SUM
binary search
,
bitmasks
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
math
,
number theory
,
strings
,
trees
2200
x1887
979C
Kuro and Walking Route
dfs and similar
,
trees
1600
x6530
979B
Treasure Hunt
greedy
1800
x4464
978G
Petya's Exams
greedy
,
implementation
,
sortings
1700
x4450
978F
Mentors
binary search
,
data structures
,
implementation
1500
x8495
978E
Bus Video System
combinatorics
,
math
1400
x9732
978D
Almost Arithmetic Progression
brute force
,
implementation
,
math
1500
x8997
977F
Consecutive Subsequence
dp
1700
x20260
977E
Cyclic Components
dfs and similar
,
dsu
,
graphs
1500
x21509
977D
Divide by three, multiply by two
dfs and similar
,
math
,
sortings
1400
x18779
976F
Minimal k-covering
flows
,
graphs
2500
x596
976E
Well played!
greedy
,
sortings
2100
x2425
976D
Degree Set
constructive algorithms
,
graphs
,
implementation
2500
x696
976C
Nested Segments
greedy
,
implementation
,
sortings
1500
x7342
975E
Hag's Khashba
geometry
2600
x312
975D
Ghosts
geometry
,
math
2000
x2260
975C
Valhalla Siege
binary search
1400
x9872
965E
Short Code
data structures
,
dp
,
greedy
,
strings
,
trees
2200
x1557
965D
Single-use Stones
binary search
,
flows
,
greedy
,
two pointers
1900
x3159
965C
Greedy Arkady
math
2000
x2130
963E
Circles of Waiting
math
3100
x563
963D
Frequency of String
hashing
,
string suffix structures
,
strings
2500
x2124
963C
Cutting Rectangle
brute force
,
math
,
number theory
2600
x599
963B
Destruction of a Tree
constructive algorithms
,
dfs and similar
,
dp
,
greedy
,
trees
2000
x2865
963A
Alternating Sum
math
,
number theory
1800
x3387
962G
Visible Black Areas
data structures
,
dsu
,
geometry
,
trees
2800
x186
962F
Simple Cycles Edges
dfs and similar
,
graphs
,
trees
2400
x1368
962E
Byteland, Berland and Disputed Cities
constructive algorithms
,
greedy
2200
x1099
962D
Merge Equals
data structures
,
implementation
1600
x6995
962C
Make a Square
brute force
,
implementation
,
math
1400
x7952
961G
Partitions
combinatorics
,
math
,
number theory
2700
x1376
961F
k-substrings
binary search
,
hashing
,
string suffix structures
2700
x821
961E
Tufurama
data structures
1900
x3741
961D
Pair Of Lines
geometry
2000
x4392
←
1
2
...
38
39
40
41
42
...
70
71
→
User lists
Name