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Codeforces Round 963 (Div. 2)
22:15:56
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Difficulty:
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math
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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Custom test
Problems
#
Name
630D
Hexagons!
math
1100
x10277
630C
Lucky Numbers
combinatorics
,
math
1100
x21408
630B
Moore's Law
math
1200
x7262
628A
Tennis Tournament
implementation
,
math
1000
x6258
622A
Infinite Sequence
implementation
,
math
1000
x9200
612B
HDD is Outdated Technology
implementation
,
math
1200
x6899
610A
Pasha and Stick
combinatorics
,
math
1000
x22710
608A
Saitama Destroys Hotel
implementation
,
math
1000
x9216
592B
The Monster and the Squirrel
math
1100
x8586
584A
Olesya and Rodion
math
1000
x44124
581B
Luxurious Houses
implementation
,
math
1100
x12985
569B
Inventory
greedy
,
math
1200
x7009
557A
Ilya and Diplomas
greedy
,
implementation
,
math
1100
x8226
552B
Vanya and Books
implementation
,
math
1200
x15317
552A
Vanya and Table
implementation
,
math
1000
x9505
534A
Exam
constructive algorithms
,
implementation
,
math
1100
x12173
527A
Playing with Paper
implementation
,
math
1100
x14328
515A
Drazil and Date
math
1000
x19953
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x73595
483A
Counterexample
brute force
,
implementation
,
math
,
number theory
1100
x22711
479A
Expression
brute force
,
math
1000
x91712
476A
Dreamoon and Stairs
implementation
,
math
1000
x42645
463B
Caisa and Pylons
brute force
,
implementation
,
math
1100
x26663
456B
Fedya and Maths
math
,
number theory
1200
x16382
402A
Nuts
greedy
,
math
1100
x4563
401B
Sereja and Contests
greedy
,
implementation
,
math
1200
x4418
389A
Fox and Number Game
greedy
,
math
1000
x13965
385B
Bear and Strings
brute force
,
greedy
,
implementation
,
math
,
strings
1200
x9750
371A
K-Periodic Array
greedy
,
implementation
,
math
1000
x6004
370A
Rook, Bishop and King
graphs
,
math
,
shortest paths
1100
x10074
361B
Levko and Permutation
constructive algorithms
,
math
,
number theory
1200
x7973
353A
Domino
implementation
,
math
1200
x18264
352A
Jeff and Digits
brute force
,
implementation
,
math
1000
x25139
347B
Fixed Points
brute force
,
implementation
,
math
1100
x9235
344B
Simple Molecules
brute force
,
graphs
,
math
1200
x8780
340A
The Wall
math
1200
x7510
336A
Vasily the Bear and Triangle
implementation
,
math
1000
x9996
327B
Hungry Sequence
math
1200
x19395
304A
Pythagorean Theorem II
brute force
,
math
1200
x10367
296A
Yaroslav and Permutations
greedy
,
math
1100
x22640
272A
Dima and Friends
implementation
,
math
1000
x24099
270A
Fancy Fence
geometry
,
implementation
,
math
1100
x44521
268B
Buttons
implementation
,
math
1000
x31730
258A
Little Elephant and Bits
greedy
,
math
1100
x22542
239A
Two Bags of Potatoes
greedy
,
implementation
,
math
1200
x18499
224A
Parallelepiped
brute force
,
geometry
,
math
1100
x26098
221A
Little Elephant and Function
implementation
,
math
1000
x14994
216A
Tiling with Hexagons
implementation
,
math
1200
x4963
195A
Let's Watch Football
binary search
,
brute force
,
math
1000
x8773
194B
Square
math
1200
x3471
190A
Vasya and the Bus
greedy
,
math
1100
x5795
180F
Mathematical Analysis Rocks!
constructive algorithms
,
implementation
,
math
1200
x2487
174A
Problem About Equation
math
1100
x2764
143A
Help Vasilisa the Wise 2
brute force
,
math
1000
x13507
136B
Ternary Logic
implementation
,
math
1100
x4816
131B
Opposites Attract
implementation
,
math
1200
x6957
124A
The number of positions
math
1000
x37299
120C
Winnie-the-Pooh and honey
implementation
,
math
1100
x3627
120A
Elevator
brute force
,
implementation
,
math
1000
x4540
114A
Cifera
math
1000
x14008
112B
Petya and Square
implementation
,
math
1200
x4113
103A
Testing Pants for Sadness
greedy
,
implementation
,
math
1100
x5931
90A
Cableway
greedy
,
math
1000
x4585
82A
Double Cola
implementation
,
math
1100
x29877
80B
Depression
geometry
,
math
1200
x4350
72C
Extraordinarily Nice Numbers
*special problem
,
math
1200
x912
69A
Young Physicist
implementation
,
math
1000
x160374
55A
Flea travel
implementation
,
math
1200
x3375
39D
Cubical Planet
math
1100
x3857
38B
Chess
brute force
,
implementation
,
math
1200
x3476
17A
Noldbach problem
brute force
,
math
,
number theory
1000
x15817
13A
Numbers
implementation
,
math
1000
x7661
9C
Hexadecimal's Numbers
brute force
,
implementation
,
math
1200
x12778
1A
Theatre Square
math
1000
x253488
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