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Before contest
Codeforces Round #696 (Div. 2)
3 days
→ Filter Problems
Difficulty:
—
dp
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
996A
Hit the Lottery
dp
,
greedy
800
x34257
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x20237
1472B
Fair Division
dp
,
greedy
,
math
800
x19365
894A
QAQ
brute force
,
dp
800
x18559
1462B
Last Year's Substring
dp
,
implementation
,
strings
800
x16658
1180A
Alex and a Rhombus
dp
,
implementation
,
math
800
x16582
1466B
Last minute enhancements
dp
,
greedy
800
x15987
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x14555
910A
The Way to Home
dfs and similar
,
dp
,
greedy
,
implementation
800
x6745
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x46204
1339A
Filling Diamonds
brute force
,
dp
,
implementation
,
math
900
x21176
1206B
Make Product Equal One
dp
,
implementation
900
x16938
1451B
Non-Substring Subsequence
dp
,
greedy
,
implementation
,
strings
900
x13246
1113A
Sasha and His Trip
dp
,
greedy
,
math
900
x12409
1359B
New Theatre Square
brute force
,
dp
,
greedy
,
implementation
,
two pointers
1000
x18656
732B
Cormen --- The Best Friend Of a Man
dp
,
greedy
1000
x17122
1182A
Filling Shapes
dp
,
math
1000
x15365
1469B
Red and Blue
dp
,
greedy
1000
x13884
753A
Santa Claus and Candies
dp
,
greedy
,
math
1000
x5642
72G
Fibonacci army
*special problem
,
dp
1000
x883
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x24960
313B
Ilya and Queries
dp
,
implementation
1100
x22380
363B
Fence
brute force
,
dp
1100
x21876
368B
Sereja and Suffixes
data structures
,
dp
1100
x21453
1345B
Card Constructions
binary search
,
brute force
,
dp
,
math
1100
x17460
1382B
Sequential Nim
dp
,
games
1100
x17147
919B
Perfect Number
binary search
,
brute force
,
dp
,
implementation
,
number theory
1100
x16633
651A
Joysticks
dp
,
greedy
,
implementation
,
math
1100
x16220
1472C
Long Jumps
dp
,
graphs
1100
x14099
522B
Photo to Remember
*special problem
,
data structures
,
dp
,
implementation
1100
x6309
331C1
The Great Julya Calendar
dp
1100
x3575
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x25330
327A
Flipping Game
brute force
,
dp
,
implementation
1200
x23080
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x21990
1355B
Young Explorers
dp
,
greedy
,
sortings
1200
x16613
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x16488
433B
Kuriyama Mirai's Stones
dp
,
implementation
,
sortings
1200
x15740
1272C
Yet Another Broken Keyboard
combinatorics
,
dp
,
implementation
1200
x13449
1406B
Maximum Product
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x13438
1097B
Petr and a Combination Lock
bitmasks
,
brute force
,
dp
1200
x13020
1472D
Even-Odd Game
dp
,
games
,
greedy
,
sortings
1200
x12202
1029B
Creating the Contest
dp
,
greedy
,
math
1200
x11104
1200B
Block Adventure
dp
,
greedy
1200
x10471
1245B
Restricted RPS
constructive algorithms
,
dp
,
greedy
1200
x10187
522A
Reposts
*special problem
,
dfs and similar
,
dp
,
graphs
,
trees
1200
x9958
1140D
Minimum Triangulation
dp
,
greedy
,
math
1200
x9536
961B
Lecture Sleep
data structures
,
dp
,
implementation
,
two pointers
1200
x9267
998B
Cutting
dp
,
greedy
,
sortings
1200
x8744
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x8418
729B
Spotlights
dp
,
implementation
1200
x5515
189A
Cut Ribbon
brute force
,
dp
1300
x31755
476B
Dreamoon and WiFi
bitmasks
,
brute force
,
combinatorics
,
dp
,
math
,
probabilities
1300
x16772
1360E
Polygon
dp
,
graphs
,
implementation
,
shortest paths
1300
x15727
1285B
Just Eat It!
dp
,
greedy
,
implementation
1300
x13071
1037C
Equalize
dp
,
greedy
,
strings
1300
x11906
1466C
Canine poetry
dp
,
greedy
,
strings
1300
x10988
1420C1
Pokémon Army (easy version)
constructive algorithms
,
dp
,
greedy
1300
x10787
1470A
Strange Birthday Party
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1300
x10711
1176C
Lose it!
dp
,
greedy
,
implementation
1300
x9744
1443B
Saving the City
dp
,
greedy
,
math
,
sortings
1300
x9488
1178B
WOW Factor
dp
,
strings
1300
x8899
1459B
Move and Turn
dp
,
math
1300
x7559
777B
Game of Credit Cards
data structures
,
dp
,
greedy
,
sortings
1300
x7527
870C
Maximum splitting
dp
,
greedy
,
math
,
number theory
1300
x7165
628B
New Skateboard
dp
1300
x6833
798B
Mike and strings
brute force
,
dp
,
strings
1300
x6668
1315B
Homecoming
binary search
,
dp
,
greedy
,
strings
1300
x6475
665C
Simple Strings
dp
,
greedy
,
strings
1300
x6195
416B
Art Union
brute force
,
dp
,
implementation
1300
x6009
1040B
Shashlik Cooking
dp
,
greedy
,
math
1300
x5897
626B
Cards
constructive algorithms
,
dp
,
math
1300
x5335
653B
Bear and Compressing
brute force
,
dfs and similar
,
dp
,
strings
1300
x4034
234C
Weather
dp
,
implementation
1300
x3950
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x26133
698A
Vacations
dp
1400
x15736
1350B
Orac and Models
dp
,
math
,
number theory
1400
x12709
414B
Mashmokh and ACM
combinatorics
,
dp
,
number theory
1400
x12452
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x12297
1195C
Basketball Exercise
dp
1400
x12079
1380C
Create The Teams
brute force
,
dp
,
greedy
,
implementation
,
sortings
1400
x11448
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x10730
1108D
Diverse Garland
constructive algorithms
,
dp
,
greedy
1400
x10276
1245C
Constanze's Machine
dp
1400
x10025
289B
Polo the Penguin and Matrix
brute force
,
dp
,
implementation
,
sortings
,
ternary search
1400
x9989
1451C
String Equality
dp
,
greedy
,
hashing
,
implementation
,
strings
1400
x8941
987C
Three displays
brute force
,
dp
,
implementation
1400
x8469
1276A
As Simple as One and Two
dp
,
greedy
1400
x8433
1284B
New Year and Ascent Sequence
binary search
,
combinatorics
,
data structures
,
dp
,
implementation
,
sortings
1400
x8233
1282B1
K for the Price of One (Easy Version)
dp
,
greedy
,
sortings
1400
x8190
1215B
The Number of Products
combinatorics
,
dp
,
implementation
1400
x8107
1461B
Find the Spruce
brute force
,
dp
,
implementation
1400
x7999
1189C
Candies!
data structures
,
dp
,
implementation
,
math
1400
x7764
505B
Mr. Kitayuta's Colorful Graph
dfs and similar
,
dp
,
dsu
,
graphs
1400
x7535
602B
Approximating a Constant Range
dp
,
implementation
,
two pointers
1400
x7138
534B
Covered Path
dp
,
greedy
,
math
1400
x6782
1415C
Bouncing Ball
brute force
,
dp
,
implementation
1400
x6631
253B
Physics Practical
binary search
,
dp
,
sortings
,
two pointers
1400
x6592
797B
Odd sum
dp
,
greedy
,
implementation
1400
x6566
940B
Our Tanya is Crying Out Loud
dp
,
greedy
1400
x6565
548B
Mike and Fun
brute force
,
dp
,
greedy
,
implementation
1400
x6320
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