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May 23, 4:00 (UTC)
to
May 23, 8:00 (UTC)
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Custom test
Problems
#
Name
294A
Shaass and Oskols
implementation
,
math
800
x22321
293D
Ksusha and Square
geometry
,
math
,
probabilities
,
two pointers
2700
x234
293C
Cube Problem
brute force
,
math
,
number theory
2400
x554
288E
Polo the Penguin and Lucky Numbers
dp
,
implementation
,
math
2800
x284
288C
Polo the Penguin and XOR operation
implementation
,
math
1700
x2234
287B
Pipeline
binary search
,
math
1700
x8916
286E
Ladies' Shop
constructive algorithms
,
fft
,
math
2800
x818
286A
Lucky Permutation
constructive algorithms
,
math
1400
x3109
285E
Positions in Permutations
combinatorics
,
dp
,
math
2600
x941
284A
Cows and Primitive Roots
implementation
,
math
,
number theory
1400
x6394
283E
Cow Tennis Tournament
combinatorics
,
data structures
,
math
2800
x720
283D
Cows and Cool Sequences
dp
,
math
,
number theory
2400
x523
282C
XOR and OR
constructive algorithms
,
implementation
,
math
1500
x9139
282B
Painting Eggs
greedy
,
math
1500
x12587
280E
Sequence Transformation
brute force
,
data structures
,
dp
,
implementation
,
math
3000
x198
280C
Game on Tree
implementation
,
math
,
probabilities
,
trees
2200
x3517
276D
Little Girl and Maximum XOR
bitmasks
,
dp
,
greedy
,
implementation
,
math
1700
x13056
272D
Dima and Two Sequences
combinatorics
,
math
,
sortings
1600
x2589
272B
Dima and Sequence
implementation
,
math
1400
x3919
272A
Dima and Friends
implementation
,
math
1000
x23598
271E
Three Horses
constructive algorithms
,
math
,
number theory
2200
x478
271B
Prime Matrix
binary search
,
brute force
,
math
,
number theory
1300
x12458
270A
Fancy Fence
geometry
,
implementation
,
math
1100
x43593
269E
String Theory
geometry
,
math
,
strings
3100
x107
269A
Magical Boxes
greedy
,
math
1600
x3478
268E
Playlist
math
,
probabilities
,
sortings
2100
x976
268B
Buttons
implementation
,
math
1000
x30991
267C
Berland Traffic
math
,
matrices
2700
x159
267A
Subtractions
math
,
number theory
900
x7164
266E
More Queries to Array...
data structures
,
math
2500
x720
266D
BerDonalds
graphs
,
math
,
shortest paths
2400
x712
266C
Below the Diagonal
constructive algorithms
,
greedy
,
math
2100
x1335
261C
Maxim and Matrix
constructive algorithms
,
dp
,
math
2000
x760
261B
Maxim and Restaurant
dp
,
math
,
probabilities
1900
x1364
260A
Adding Digits
implementation
,
math
1400
x14154
258D
Little Elephant and Broken Sorting
dp
,
math
,
probabilities
2600
x1214
258C
Little Elephant and LCM
binary search
,
combinatorics
,
dp
,
math
2000
x1759
258A
Little Elephant and Bits
greedy
,
math
1100
x22128
257D
Sum
greedy
,
math
1900
x1544
257C
View Angle
brute force
,
geometry
,
math
1800
x4198
255E
Furlo and Rublo and Game
games
,
implementation
,
math
2200
x831
255D
Mr. Bender and Square
binary search
,
implementation
,
math
1800
x1930
251D
Two Sets
bitmasks
,
math
2700
x442
251B
Playing with Permutations
implementation
,
math
1800
x1250
249E
Endless Matrix
math
2600
x288
249D
Donkey and Stars
data structures
,
dp
,
geometry
,
math
,
sortings
2700
x394
248E
Piglet's Birthday
dp
,
math
,
probabilities
2600
x565
248B
Chilly Willy
math
,
number theory
1400
x5200
246B
Increase and Decrease
greedy
,
math
1300
x10985
241B
Friends
binary search
,
bitmasks
,
data structures
,
math
2700
x752
239A
Two Bags of Potatoes
greedy
,
implementation
,
math
1200
x18222
238A
Not Wool Sequences
constructive algorithms
,
math
1300
x2009
235E
Number Challenge
combinatorics
,
dp
,
implementation
,
math
,
number theory
2600
x749
235B
Let's Play Osu!
dp
,
math
,
probabilities
2000
x3363
233B
Non-square Equation
binary search
,
brute force
,
math
1400
x7329
233A
Perfect Permutation
implementation
,
math
800
x40612
232B
Table
bitmasks
,
combinatorics
,
dp
,
math
1900
x1390
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x70385
229E
Gifts
combinatorics
,
dp
,
math
,
probabilities
2600
x451
229C
Triangles
combinatorics
,
graphs
,
math
1900
x1593
226C
Anniversary
data structures
,
implementation
,
math
,
matrices
,
number theory
2400
x844
226A
Flying Saucer Segments
math
1400
x3910
225E
Unsolvable
math
,
number theory
2100
x782
224A
Parallelepiped
brute force
,
geometry
,
math
1100
x25469
223C
Partial Sums
combinatorics
,
math
,
number theory
1900
x1512
222C
Reducing Fractions
implementation
,
math
,
number theory
,
sortings
1800
x2085
221A
Little Elephant and Function
implementation
,
math
1000
x14735
220D
Little Elephant and Triangle
geometry
,
math
2500
x273
217D
Bitonix' Patrol
bitmasks
,
brute force
,
combinatorics
,
dfs and similar
,
math
2900
x245
217B
Blackboard Fibonacci
brute force
,
math
2100
x860
216E
Martian Luck
math
,
number theory
2000
x544
216A
Tiling with Hexagons
implementation
,
math
1200
x4921
215B
Olympic Medal
greedy
,
math
1300
x5376
214B
Hometask
brute force
,
constructive algorithms
,
greedy
,
math
1600
x4894
212C
Cowboys
combinatorics
,
dp
,
math
2100
x376
209B
Pixels
constructive algorithms
,
math
2100
x358
209A
Multicolored Marbles
dp
,
math
1600
x2251
204C
Little Elephant and Furik and Rubik
math
,
probabilities
2000
x1077
203D
Hit Ball
geometry
,
implementation
,
math
1700
x1400
201B
Guess That Car!
math
,
ternary search
1800
x1252
201A
Clear Symmetry
constructive algorithms
,
dp
,
math
1700
x2965
200E
Tractor College
implementation
,
math
,
number theory
,
ternary search
2400
x333
200B
Drinks
implementation
,
math
800
x108497
198A
About Bacteria
implementation
,
math
1700
x3114
197B
Limit
math
1400
x4540
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6049
195D
Analyzing Polyline
geometry
,
math
,
sortings
1900
x1005
195B
After Training
data structures
,
implementation
,
math
1300
x5125
195A
Let's Watch Football
binary search
,
brute force
,
math
1000
x8496
194B
Square
math
1200
x3434
194A
Exams
implementation
,
math
900
x9650
193E
Fibonacci Number
brute force
,
math
,
matrices
2900
x322
193C
Hamming Distance
constructive algorithms
,
greedy
,
math
,
matrices
2400
x496
190A
Vasya and the Bus
greedy
,
math
1100
x5719
189B
Counting Rhombi
brute force
,
math
1300
x3877
188C
LCM
*special problem
,
implementation
,
math
1400
x434
185D
Visit of the Great
math
,
number theory
2600
x383
185B
Mushroom Scientists
math
,
ternary search
1800
x1599
185A
Plant
math
1300
x5705
183A
Headquarters
constructive algorithms
,
math
1700
x528
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