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Codeforces Round 950 (Div. 3)
2 days
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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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Problems
#
Name
448B
Suffix Structures
implementation
,
strings
1400
x15695
445B
DZY Loves Chemistry
dfs and similar
,
dsu
,
greedy
1400
x12164
441B
Valera and Fruits
greedy
,
implementation
1400
x6954
437C
The Child and Toy
graphs
,
greedy
,
sortings
1400
x13552
436B
Om Nom and Spiders
implementation
,
math
1400
x3044
435B
Pasha Maximizes
greedy
1400
x6776
430B
Balls Game
brute force
,
two pointers
1400
x3636
417C
Football
constructive algorithms
,
graphs
,
implementation
1400
x4614
417B
Crash
implementation
1400
x1755
416A
Guess a number!
greedy
,
implementation
,
two pointers
1400
x8683
414B
Mashmokh and ACM
combinatorics
,
dp
,
number theory
1400
x21049
413C
Jeopardy!
greedy
,
math
1400
x2308
402B
Trees in a Row
brute force
,
implementation
1400
x3693
401C
Team
constructive algorithms
,
greedy
,
implementation
1400
x19336
388A
Fox and Box Accumulation
greedy
,
sortings
1400
x11366
386B
Fly, freebies, fly!
binary search
,
brute force
,
implementation
1400
x2114
379C
New Year Ratings Change
greedy
,
sortings
1400
x6501
369B
Valera and Contest
constructive algorithms
,
implementation
,
math
1400
x6304
363C
Fixing Typos
greedy
,
implementation
1400
x13105
359B
Permutation
constructive algorithms
,
dp
,
math
1400
x7747
358A
Dima and Continuous Line
brute force
,
implementation
1400
x7619
357B
Flag Day
constructive algorithms
,
implementation
1400
x8054
337B
Routine Problem
greedy
,
math
,
number theory
1400
x9119
335A
Banana
binary search
,
constructive algorithms
,
greedy
1400
x2519
334B
Eight Point Sets
sortings
1400
x3551
331A1
Oh Sweet Beaverette
brute force
,
implementation
1400
x1340
316A2
Special Task
math
1400
x2104
315A
Sereja and Bottles
brute force
1400
x10756
313C
Ilya and Matrix
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x5534
295A
Greg and Array
data structures
,
implementation
1400
x16171
290D
Orange
*special problem
,
implementation
1400
x1785
290A
Mysterious strings
*special problem
,
implementation
1400
x2953
289B
Polo the Penguin and Matrix
brute force
,
dp
,
implementation
,
sortings
,
ternary search
1400
x16812
286A
Lucky Permutation
constructive algorithms
,
math
1400
x3112
284A
Cows and Primitive Roots
implementation
,
math
,
number theory
1400
x6400
279B
Books
binary search
,
brute force
,
implementation
,
two pointers
1400
x48446
279A
Point on Spiral
brute force
,
geometry
,
implementation
1400
x5516
277A
Learning Languages
dfs and similar
,
dsu
1400
x18202
272B
Dima and Sequence
implementation
,
math
1400
x3923
270B
Multithreading
data structures
,
greedy
,
implementation
1400
x4087
261A
Maxim and Discounts
greedy
,
sortings
1400
x5104
260A
Adding Digits
implementation
,
math
1400
x14184
253B
Physics Practical
binary search
,
dp
,
sortings
,
two pointers
1400
x10356
248B
Chilly Willy
math
,
number theory
1400
x5207
245E
Mishap in Club
greedy
,
implementation
1400
x3229
233B
Non-square Equation
binary search
,
brute force
,
math
1400
x7337
228B
Two Tables
brute force
,
implementation
1400
x3434
226A
Flying Saucer Segments
math
1400
x3913
219B
Special Offer! Super Price 999 Bourles!
implementation
1400
x5708
205B
Little Elephant and Sorting
brute force
,
greedy
1400
x5950
203C
Photographer
greedy
,
sortings
1400
x5592
198B
Jumping on Walls
shortest paths
1400
x4126
197B
Limit
math
1400
x4545
188F
Binary Notation
*special problem
,
implementation
1400
x289
188E
HQ9+
*special problem
,
implementation
1400
x491
188C
LCM
*special problem
,
implementation
,
math
1400
x435
182D
Common Divisors
brute force
,
hashing
,
implementation
,
math
,
strings
1400
x7840
180C
Letter
dp
1400
x7108
175B
Plane of Tanks: Pro
implementation
1400
x1379
175A
Robot Bicorn Attack
brute force
,
implementation
1400
x2352
174B
File List
dp
,
greedy
,
implementation
1400
x2196
159C
String Manipulation 1.0
*special problem
,
binary search
,
brute force
,
data structures
,
strings
1400
x2923
159A
Friends or Not
*special problem
,
greedy
,
implementation
1400
x2458
158C
Cd and pwd commands
*special problem
,
data structures
,
implementation
1400
x8924
152C
Pocket Book
combinatorics
1400
x10326
150A
Win or Freeze
games
,
math
,
number theory
1400
x7607
141B
Hopscotch
geometry
,
math
1400
x5151
131C
The World is a Theatre
combinatorics
,
math
1400
x10701
130B
Gnikool Ssalg
*special problem
,
implementation
,
strings
1400
x517
125A
Measuring Lengths in Baden
math
1400
x2647
124B
Permutations
brute force
,
combinatorics
,
implementation
1400
x3772
120F
Spiders
dp
,
greedy
,
trees
1400
x3515
120E
Put Knight!
games
,
math
1400
x2651
120D
Three Sons
brute force
1400
x1904
111A
Petya and Inequiations
greedy
1400
x4644
108B
Datatypes
math
,
sortings
1400
x2421
107A
Dorm Water Supply
dfs and similar
,
graphs
1400
x4959
100C
A+B
*special problem
,
implementation
1400
x516
81A
Plug-in
implementation
1400
x10248
79B
Colorful Field
implementation
,
sortings
1400
x6856
77A
Heroes
brute force
,
implementation
1400
x1750
60B
Serial Time!
dfs and similar
,
dsu
1400
x4462
45I
TCMCF+++
greedy
1400
x2318
44E
Anfisa the Monkey
dp
1400
x4858
42A
Guilty --- to the kitchen!
greedy
,
implementation
1400
x2766
41B
Martian Dollar
brute force
1400
x3890
38C
Blinds
brute force
1400
x2093
30A
Accounting
brute force
,
math
1400
x3337
26B
Regular Bracket Sequence
greedy
1400
x17667
24A
Ring road
graphs
1400
x4818
19A
World Football Cup
implementation
1400
x2648
8B
Obsession with Robots
constructive algorithms
,
graphs
,
implementation
1400
x4094
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