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Custom test
Problems
#
Name
459A
Pashmak and Garden
implementation
1200
x31597
454B
Little Pony and Sort by Shift
implementation
1200
x17883
452A
Eevee
brute force
,
implementation
,
strings
1000
x7911
450A
Jzzhu and Children
implementation
1000
x32809
447B
DZY Loves Strings
greedy
,
implementation
1000
x20012
445A
DZY Loves Chessboard
dfs and similar
,
implementation
1200
x28421
441A
Valera and Antique Items
implementation
1000
x18246
439B
Devu, the Dumb Guy
implementation
,
sortings
1200
x14079
435A
Queue on Bus Stop
implementation
1000
x9995
433B
Kuriyama Mirai's Stones
dp
,
implementation
,
sortings
1200
x36765
433A
Kitahara Haruki's Gift
brute force
,
implementation
1100
x15836
432B
Football Kit
brute force
,
greedy
,
implementation
1200
x11514
431B
Shower Line
brute force
,
implementation
1200
x10524
427B
Prison Transfer
data structures
,
implementation
1100
x13747
424B
Megacity
binary search
,
greedy
,
implementation
,
sortings
1200
x7369
420A
Start Up
implementation
1000
x5907
413A
Data Recovery
implementation
1200
x2543
412C
Pattern
implementation
,
strings
1200
x3856
408B
Garland
implementation
1200
x8920
404A
Valera and X
implementation
1000
x23060
402A
Nuts
greedy
,
math
1100
x4522
401B
Sereja and Contests
greedy
,
implementation
,
math
1200
x4389
400B
Inna and New Matrix of Candies
brute force
,
implementation
,
schedules
1200
x7371
400A
Inna and Choose Options
implementation
1000
x6407
389B
Fox and Cross
greedy
,
implementation
1100
x6826
389A
Fox and Number Game
greedy
,
math
1000
x13869
387B
George and Round
brute force
,
greedy
,
two pointers
1200
x11943
385B
Bear and Strings
brute force
,
greedy
,
implementation
,
math
,
strings
1200
x9567
385A
Bear and Raspberry
brute force
,
greedy
,
implementation
1000
x16256
382A
Ksenia and Pan Scales
greedy
,
implementation
1100
x11834
381B
Sereja and Stairs
greedy
,
implementation
,
sortings
1100
x6597
379B
New Year Present
constructive algorithms
,
implementation
1200
x7195
379A
New Year Candles
implementation
1000
x44745
371A
K-Periodic Array
greedy
,
implementation
,
math
1000
x5959
368A
Sereja and Coat Rack
implementation
1000
x7392
366B
Dima and To-do List
brute force
,
implementation
1200
x6735
366A
Dima and Guards
implementation
1100
x4485
365B
The Fibonacci Segment
implementation
1100
x14070
365A
Good Number
implementation
1100
x17579
362B
Petya and Staircases
implementation
,
sortings
1100
x13534
359A
Table
constructive algorithms
,
greedy
,
implementation
1000
x8400
357A
Group of Students
brute force
,
greedy
,
implementation
1000
x6722
355B
Vasya and Public Transport
greedy
,
implementation
1100
x4437
355A
Vasya and Digital Root
constructive algorithms
,
implementation
1100
x9280
353A
Domino
implementation
,
math
1200
x17928
352A
Jeff and Digits
brute force
,
implementation
,
math
1000
x24773
350A
TL
brute force
,
greedy
,
implementation
1200
x16027
349A
Cinema Line
greedy
,
implementation
1100
x28890
347B
Fixed Points
brute force
,
implementation
,
math
1100
x9165
342A
Xenia and Divisors
greedy
,
implementation
1200
x12177
339B
Xenia and Ringroad
implementation
1000
x66944
336A
Vasily the Bear and Triangle
implementation
,
math
1000
x9899
334A
Candy Bags
implementation
1000
x18124
327A
Flipping Game
brute force
,
dp
,
implementation
1200
x40292
322A
Ciel and Dancing
greedy
1000
x8102
316A1
Special Task
greedy
1100
x2598
315B
Sereja and Array
implementation
1200
x6864
313B
Ilya and Queries
dp
,
implementation
1100
x41788
312A
Whose sentence is it?
implementation
,
strings
1100
x4879
302B
Eugeny and Play List
binary search
,
implementation
,
two pointers
1200
x7834
300A
Array
brute force
,
constructive algorithms
,
implementation
1100
x22042
298B
Sail
brute force
,
greedy
,
implementation
1200
x13614
296A
Yaroslav and Permutations
greedy
,
math
1100
x22117
292B
Network Topology
graphs
,
implementation
1200
x7737
292A
SMSC
implementation
1100
x2642
289A
Polo the Penguin and Segments
brute force
,
implementation
1100
x8779
287A
IQ Test
brute force
,
implementation
1100
x18962
285C
Building Permutation
greedy
,
implementation
,
sortings
1200
x22606
285B
Find Marble
implementation
1200
x14778
285A
Slightly Decreasing Permutations
greedy
,
implementation
1100
x13137
284B
Cows and Poker Game
brute force
,
implementation
1000
x6685
272A
Dima and Friends
implementation
,
math
1000
x23687
270A
Fancy Fence
geometry
,
implementation
,
math
1100
x43715
268B
Buttons
implementation
,
math
1000
x31107
265B
Roadside Trees (Simplified Edition)
greedy
,
implementation
1000
x16933
264A
Escape from Stones
constructive algorithms
,
data structures
,
implementation
,
two pointers
1200
x10630
262B
Roma and Changing Signs
greedy
1200
x10976
259B
Little Elephant and Magic Square
brute force
,
implementation
1100
x13714
258A
Little Elephant and Bits
greedy
,
math
1100
x22180
257A
Sockets
greedy
,
implementation
,
sortings
1100
x6394
255B
Code Parsing
implementation
1200
x4882
253A
Boys and Girls
greedy
1100
x10986
252A
Little Xor
brute force
,
implementation
1100
x5179
250A
Paper Work
greedy
1000
x4004
245B
Internet Address
implementation
,
strings
1100
x5139
242B
Big Segment
implementation
,
sortings
1100
x15268
242A
Heads or Tails
brute force
,
implementation
1100
x6245
239A
Two Bags of Potatoes
greedy
,
implementation
,
math
1200
x18257
237A
Free Cash
implementation
1000
x25939
234A
Lefthanders and Righthanders
implementation
1200
x4382
230A
Dragons
greedy
,
sortings
1000
x75070
227B
Effective Approach
implementation
1100
x26672
225A
Dice Tower
constructive algorithms
,
greedy
1100
x11182
222A
Shooshuns and Sequence
brute force
,
implementation
1200
x10421
221A
Little Elephant and Function
implementation
,
math
1000
x14775
219A
k-String
implementation
,
strings
1000
x26259
218B
Airport
implementation
1100
x15845
218A
Mountain Scenery
brute force
,
constructive algorithms
,
implementation
1100
x8963
216A
Tiling with Hexagons
implementation
,
math
1200
x4930
208D
Prizes, Prizes, more Prizes
implementation
1200
x7499
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Codeforces Round 950 (Div. 3)
04:19:10
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→ Filter Problems
Difficulty:
—
*combine tags by OR
greedy
implementation
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
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