Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
WorldQuant Round 1 (Codeforces Round 1128, Div. 1 + Div. 2)
47:52:39
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
communication
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
301C
Yaroslav and Algorithm
constructive algorithms
2500
x514
301B
Yaroslav and Time
binary search
,
graphs
,
shortest paths
2100
x2899
301A
Yaroslav and Sequence
constructive algorithms
1800
x3280
300E
Empire Strikes Back
binary search
,
math
,
number theory
2300
x1148
300D
Painting Square
dp
,
fft
2300
x882
300C
Beautiful Numbers
brute force
,
combinatorics
1800
x12940
300B
Coach
brute force
,
dfs and similar
,
graphs
1500
x7462
300A
Array
brute force
,
constructive algorithms
,
implementation
1100
x28543
299B
Ksusha the Squirrel
brute force
,
implementation
900
x6711
299A
Ksusha and Array
brute force
,
number theory
,
sortings
1000
x9666
298B
Sail
brute force
,
greedy
,
implementation
1200
x16129
298A
Snow Footprints
greedy
,
implementation
1300
x11834
297E
Mystic Carvings
data structures
3000
x461
297D
Color the Carpet
constructive algorithms
2500
x657
297C
Splitting the Uniqueness
constructive algorithms
2400
x1042
297B
Fish Weight
constructive algorithms
,
greedy
1600
x3795
297A
Parity Game
constructive algorithms
1700
x3906
296B
Yaroslav and Two Strings
combinatorics
,
dp
2000
x2796
296A
Yaroslav and Permutations
greedy
,
math
1100
x26656
295E
Yaroslav and Points
data structures
2500
x880
295D
Greg and Caves
combinatorics
,
dp
2400
x770
295C
Greg and Friends
combinatorics
,
dp
,
graphs
,
shortest paths
2100
x1998
295B
Greg and Graph
dp
,
graphs
,
shortest paths
1700
x19074
295A
Greg and Array
data structures
,
implementation
1400
x28454
294E
Shaass the Great
dp
,
trees
2300
x1217
294D
Shaass and Painter Robot
brute force
,
implementation
,
number theory
2500
x419
294C
Shaass and Lights
combinatorics
,
number theory
1900
x4540
294B
Shaass and Bookshelf
dp
,
greedy
1700
x5146
294A
Shaass and Oskols
implementation
,
math
800
x29097
293E
Close Vertices
data structures
,
divide and conquer
,
trees
2700
x2208
293D
Ksusha and Square
geometry
,
math
,
probabilities
,
two pointers
2700
x294
293C
Cube Problem
brute force
,
math
,
number theory
2400
x700
293B
Distinct Paths
brute force
,
combinatorics
2700
x1018
293A
Weird Game
games
,
greedy
1500
x3250
292E
Copying Data
data structures
1900
x5160
292D
Connected Components
data structures
,
dfs and similar
,
dp
,
dsu
1900
x2869
292C
Beautiful IP Addresses
brute force
2000
x1380
292B
Network Topology
graphs
,
implementation
1200
x11104
292A
SMSC
implementation
1100
x2934
291E
Tree-String Problem
*special problem
,
dfs and similar
,
hashing
,
strings
2000
x1668
291D
Parallel Programming
*special problem
,
greedy
1600
x1545
291C
Network Mask
*special problem
,
bitmasks
,
brute force
,
implementation
1600
x1906
291B
Command Line Arguments
*special problem
,
implementation
,
strings
1300
x3110
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x6585
290F
Greedy Petya
*special problem
,
dfs and similar
,
graphs
,
greedy
2800
x162
290E
HQ
*special problem
,
constructive algorithms
2500
x241
290D
Orange
*special problem
,
implementation
1400
x1919
290C
WTF?
*special problem
,
graph matchings
,
implementation
,
trees
1700
x1691
290B
QR code
*special problem
,
implementation
1500
x2639
290A
Mysterious strings
*special problem
,
implementation
1400
x3275
289B
Polo the Penguin and Matrix
brute force
,
dp
,
implementation
,
sortings
,
ternary search
1400
x19329
289A
Polo the Penguin and Segments
brute force
,
implementation
1100
x10555
288E
Polo the Penguin and Lucky Numbers
dp
,
implementation
,
math
2800
x415
288D
Polo the Penguin and Trees
combinatorics
,
dfs and similar
,
trees
2400
x864
288C
Polo the Penguin and XOR operation
implementation
,
math
1700
x2477
288B
Polo the Penguin and Houses
combinatorics
1500
x3265
288A
Polo the Penguin and Strings
greedy
1300
x6876
287B
Pipeline
binary search
,
math
1700
x12104
287A
IQ Test
brute force
,
implementation
1100
x22407
286E
Ladies' Shop
constructive algorithms
,
fft
,
math
2800
x1100
286D
Tourists
data structures
,
sortings
2600
x503
286C
Main Sequence
greedy
,
implementation
2100
x1636
286B
Shifting
implementation
2200
x1198
286A
Lucky Permutation
constructive algorithms
,
math
1400
x3492
285E
Positions in Permutations
combinatorics
,
dp
,
math
2600
x1439
285D
Permutation Sum
bitmasks
,
combinatorics
,
dp
,
implementation
,
meet-in-the-middle
1900
x1709
285C
Building Permutation
greedy
,
implementation
,
sortings
1200
x26834
285B
Find Marble
implementation
1200
x15878
285A
Slightly Decreasing Permutations
greedy
,
implementation
1100
x14309
284B
Cows and Poker Game
brute force
,
implementation
1000
x7460
284A
Cows and Primitive Roots
implementation
,
math
,
number theory
1400
x7543
283E
Cow Tennis Tournament
combinatorics
,
data structures
,
math
2800
x963
283D
Cows and Cool Sequences
dp
,
math
,
number theory
2400
x719
283C
Coin Troubles
dp
2100
x1634
283B
Cow Program
dfs and similar
,
dp
,
graphs
1700
x3983
283A
Cows and Sequence
constructive algorithms
,
data structures
,
implementation
1600
x6948
282E
Sausage Maximization
bitmasks
,
data structures
,
trees
2200
x4831
282D
Yet Another Number Game
dp
,
games
2100
x1712
282C
XOR and OR
constructive algorithms
,
implementation
,
math
1500
x10454
282B
Painting Eggs
greedy
,
math
1500
x14207
282A
Bit++
implementation
800
x385277
281B
Nearest Fraction
brute force
,
implementation
,
two pointers
1700
x3473
281A
Word Capitalization
implementation
,
strings
800
x287749
280E
Sequence Transformation
brute force
,
data structures
,
dp
,
implementation
,
math
3000
x353
280D
k-Maximum Subsequence Sum
data structures
,
flows
,
graphs
,
implementation
2800
x1806
280C
Game on Tree
implementation
,
math
,
probabilities
,
trees
2200
x5717
280B
Maximum Xor Secondary
data structures
,
implementation
,
two pointers
1800
x5423
280A
Rectangle Puzzle
geometry
2000
x1623
279E
Beautiful Decomposition
dp
,
games
,
greedy
,
number theory
1900
x1645
279D
The Minimum Number of Variables
bitmasks
,
dp
2200
x906
279C
Ladder
dp
,
implementation
,
two pointers
1700
x9124
279B
Books
binary search
,
brute force
,
implementation
,
two pointers
1400
x81095
279A
Point on Spiral
brute force
,
geometry
,
implementation
1400
x6007
278B
New Problem
brute force
,
strings
1500
x3666
278A
Circle Line
implementation
800
x12966
277E
Binary Tree on Plane
flows
,
trees
2400
x1545
277D
Google Code Jam
dp
,
probabilities
2800
x447
277C
Game
games
,
implementation
2400
x515
277B
Set of Points
constructive algorithms
,
geometry
2300
x865
277A
Learning Languages
dfs and similar
,
dsu
1400
x22533
←
1
2
...
100
101
102
103
104
...
114
115
→
User lists
Name