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Codeforces Round (Div. 1 + Div. 2)
36:17:15
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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
1676B
Equal Candies
greedy
,
math
,
sortings
800
x45450
1426A
Floor Number
implementation
,
math
800
x45748
1703B
ICPC Balloons
data structures
,
implementation
800
x45750
1360B
Honest Coach
greedy
,
sortings
800
x46276
1829A
Love Story
implementation
,
strings
800
x46323
707A
Brain's Photos
implementation
800
x46572
1535A
Fair Playoff
brute force
,
implementation
800
x46672
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46801
1283A
Minutes Before the New Year
math
800
x46859
492A
Vanya and Cubes
implementation
800
x47026
1722A
Spell Check
implementation
800
x47292
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47720
1472B
Fair Division
dp
,
greedy
,
math
800
x47757
1360A
Minimal Square
greedy
,
math
800
x48240
1551A
Polycarp and Coins
greedy
,
math
800
x48650
1619A
Square String?
implementation
,
strings
800
x48751
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x49139
1873A
Short Sort
brute force
,
implementation
800
x49251
1433A
Boring Apartments
implementation
,
math
800
x49544
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49895
80A
Panoramix's Prediction
brute force
800
x49925
1624A
Plus One on the Subset
math
800
x49984
1915A
Odd One Out
bitmasks
,
implementation
800
x50347
1367B
Even Array
greedy
,
math
800
x50581
1374A
Required Remainder
math
800
x50857
1850A
To My Critics
implementation
,
sortings
800
x51639
431A
Black Square
implementation
800
x51797
9A
Die Roll
math
,
probabilities
800
x52935
703A
Mishka and Game
implementation
800
x53823
1343B
Balanced Array
constructive algorithms
,
math
800
x53937
1760A
Medium Number
implementation
,
sortings
800
x54330
1367A
Short Substrings
implementation
,
strings
800
x55048
1791A
Codeforces Checking
implementation
,
strings
800
x55538
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55858
1560A
Dislike of Threes
implementation
800
x56228
1807A
Plus or Minus
implementation
800
x56409
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56906
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x57251
758A
Holiday Of Equality
implementation
,
math
800
x57641
1669A
Division?
implementation
800
x57684
1676A
Lucky?
implementation
800
x58544
32B
Borze
expression parsing
,
implementation
800
x59225
1512A
Spy Detected!
brute force
,
implementation
800
x60289
1692A
Marathon
implementation
800
x60429
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60824
630A
Again Twenty Five!
number theory
800
x62454
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62830
1399A
Remove Smallest
greedy
,
sortings
800
x63083
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x63425
1742A
Sum
implementation
800
x65360
151A
Soft Drinking
implementation
,
math
800
x66385
1154A
Restoring Three Numbers
math
800
x66755
581A
Vasya the Hipster
implementation
,
math
800
x67494
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67771
155A
I_love_\%username\%
brute force
800
x70994
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x71342
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x71405
1352A
Sum of Round Numbers
implementation
,
math
800
x72651
427A
Police Recruits
implementation
800
x72936
510A
Fox And Snake
implementation
800
x77626
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x78310
1335A
Candies and Two Sisters
math
800
x79195
268A
Games
brute force
800
x81418
785A
Anton and Polyhedrons
implementation
,
strings
800
x82809
443A
Anton and Letters
constructive algorithms
,
implementation
800
x84447
996A
Hit the Lottery
dp
,
greedy
800
x84862
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87609
144A
Arrival of the General
implementation
800
x89567
520A
Pangram
implementation
,
strings
800
x90428
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91881
1328A
Divisibility Problem
math
800
x94069
705A
Hulk
implementation
800
x99987
228A
Is your horseshoe on the other hoof?
implementation
800
x102672
61A
Ultra-Fast Mathematician
implementation
800
x104258
200B
Drinks
implementation
,
math
800
x108544
136A
Presents
implementation
800
x109862
486A
Calculating Function
implementation
,
math
800
x110123
344A
Magnets
implementation
800
x112564
467A
George and Accommodation
implementation
800
x114521
1030A
In Search of an Easy Problem
implementation
800
x120874
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x127529
271A
Beautiful Year
brute force
800
x128553
677A
Vanya and Fence
implementation
800
x131613
116A
Tram
implementation
800
x132930
41A
Translation
implementation
,
strings
800
x135929
734A
Anton and Danik
implementation
,
strings
800
x141264
110A
Nearly Lucky Number
implementation
800
x143618
977A
Wrong Subtraction
implementation
800
x156103
59A
Word
implementation
,
strings
800
x163367
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x168991
617A
Elephant
math
800
x171450
266A
Stones on the Table
implementation
800
x179188
791A
Bear and Big Brother
implementation
800
x180397
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x194791
281A
Word Capitalization
implementation
,
strings
800
x197495
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x199668
112A
Petya and Strings
implementation
,
strings
800
x210581
263A
Beautiful Matrix
implementation
800
x226517
50A
Domino piling
greedy
,
math
800
x230215
158A
Next Round
*special problem
,
implementation
800
x233951
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