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Codeforces Round #696 (Div. 2)
3 days
→ Filter Problems
Difficulty:
—
sortings
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
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Status
Standings
Custom test
Problems
#
Name
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x80169
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x34785
1399A
Remove Smallest
greedy
,
sortings
800
x30193
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x28098
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x27242
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x26879
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x26317
1360B
Honest Coach
greedy
,
sortings
800
x26141
1220A
Cards
implementation
,
sortings
,
strings
800
x19114
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x19026
1092B
Teams Forming
sortings
800
x16996
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x16928
1206A
Choose Two Numbers
math
,
sortings
800
x16708
1041A
Heist
greedy
,
implementation
,
sortings
800
x16260
1430B
Barrels
greedy
,
implementation
,
sortings
800
x14239
1445A
Array Rearrangment
greedy
,
sortings
800
x13997
1450A
Avoid Trygub
constructive algorithms
,
sortings
800
x13285
984A
Game
sortings
800
x13195
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x12600
609A
Флеш-карты
greedy
,
implementation
,
sortings
800
x11961
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x11694
937A
Olympiad
implementation
,
sortings
800
x10854
992A
Nastya and an Array
implementation
,
sortings
800
x9478
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x4728
769A
Year of University Entrance
*special problem
,
implementation
,
sortings
800
x4088
169A
Chores
sortings
800
x3918
160A
Twins
greedy
,
sortings
900
x54768
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x42065
149A
Business trip
greedy
,
implementation
,
sortings
900
x20149
34B
Sale
greedy
,
sortings
900
x19780
1420A
Cubes Sorting
math
,
sortings
900
x16029
1272A
Three Friends
brute force
,
greedy
,
math
,
sortings
900
x14526
768A
Oath of the Night's Watch
constructive algorithms
,
sortings
900
x14248
1216B
Shooting
greedy
,
implementation
,
sortings
900
x12517
1144B
Parity Alternated Deletions
greedy
,
implementation
,
sortings
900
x11905
572A
Arrays
sortings
900
x11893
1427A
Avoiding Zero
math
,
sortings
900
x11747
1248B
Grow The Tree
greedy
,
math
,
sortings
900
x11559
1093B
Letters Rearranging
constructive algorithms
,
greedy
,
sortings
,
strings
900
x11149
1197A
DIY Wooden Ladder
greedy
,
math
,
sortings
900
x11107
1106C
Lunar New Year and Number Division
greedy
,
implementation
,
math
,
sortings
900
x11090
807A
Is it rated?
implementation
,
sortings
900
x10408
1025A
Doggo Recoloring
implementation
,
sortings
900
x9842
1011A
Stages
greedy
,
implementation
,
sortings
900
x9202
1132B
Discounts
greedy
,
sortings
900
x9063
991B
Getting an A
greedy
,
sortings
900
x8753
814A
An abandoned sentiment from past
constructive algorithms
,
greedy
,
implementation
,
sortings
900
x8437
16B
Burglar and Matches
greedy
,
implementation
,
sortings
900
x8148
63A
Sinking Ship
implementation
,
sortings
,
strings
900
x6938
263B
Squares
greedy
,
implementation
,
sortings
900
x6685
246A
Buggy Sorting
constructive algorithms
,
greedy
,
sortings
900
x6612
653A
Bear and Three Balls
brute force
,
implementation
,
sortings
900
x5830
412B
Network Configuration
greedy
,
sortings
900
x3398
230A
Dragons
greedy
,
sortings
1000
x33640
1358B
Maria Breaks the Self-isolation
greedy
,
sortings
1000
x18997
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x16709
1312B
Bogosort
constructive algorithms
,
sortings
1000
x16269
37A
Towers
sortings
1000
x14792
1300B
Assigning to Classes
greedy
,
implementation
,
sortings
1000
x14014
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x13759
1165B
Polycarp Training
data structures
,
greedy
,
sortings
1000
x12965
560A
Currency System in Geraldion
implementation
,
sortings
1000
x12448
1174A
Ehab Fails to Be Thanos
constructive algorithms
,
greedy
,
sortings
1000
x11890
507A
Amr and Music
greedy
,
implementation
,
sortings
1000
x11647
1438B
Valerii Against Everyone
constructive algorithms
,
data structures
,
greedy
,
sortings
1000
x11413
1144C
Two Shuffled Sequences
constructive algorithms
,
sortings
1000
x10614
1088B
Ehab and subtraction
implementation
,
sortings
1000
x9503
864A
Fair Game
implementation
,
sortings
1000
x9318
1155A
Reverse a Substring
implementation
,
sortings
,
strings
1000
x9197
1117B
Emotes
greedy
,
math
,
sortings
1000
x9186
1008B
Turn the Rectangles
greedy
,
sortings
1000
x8702
157B
Trace
geometry
,
sortings
1000
x8431
909A
Generate Login
brute force
,
greedy
,
sortings
1000
x7220
652B
z-sort
sortings
1000
x6085
981B
Businessmen Problems
sortings
1000
x5345
299A
Ksusha and Array
brute force
,
number theory
,
sortings
1000
x4674
234B
Reading
sortings
1000
x4640
967B
Watering System
math
,
sortings
1000
x4417
519B
A and B and Compilation Errors
data structures
,
implementation
,
sortings
1100
x23295
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x21598
456A
Laptops
sortings
1100
x21473
1360C
Similar Pairs
constructive algorithms
,
graph matchings
,
greedy
,
sortings
1100
x20427
1334B
Middle Class
greedy
,
sortings
1100
x17976
988B
Substrings Sort
sortings
,
strings
1100
x11399
1015C
Songs Compression
sortings
1100
x10870
1417B
Two Arrays
greedy
,
math
,
sortings
1100
x10172
1189B
Number Circle
greedy
,
math
,
sortings
1100
x9707
721B
Passwords
implementation
,
math
,
sortings
,
strings
1100
x9694
166A
Rank List
binary search
,
implementation
,
sortings
1100
x9662
242B
Big Segment
implementation
,
sortings
1100
x9087
785B
Anton and Classes
greedy
,
sortings
1100
x8576
362B
Petya and Staircases
implementation
,
sortings
1100
x8529
160B
Unlucky Ticket
greedy
,
sortings
1100
x8489
558A
Lala Land and Apple Trees
brute force
,
implementation
,
sortings
1100
x7826
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x7401
735B
Urbanization
greedy
,
number theory
,
sortings
1100
x6801
155B
Combination
greedy
,
sortings
1100
x6801
792A
New Bus Route
implementation
,
sortings
1100
x6655
686B
Little Robber Girl's Zoo
constructive algorithms
,
implementation
,
sortings
1100
x6327
624B
Making a String
greedy
,
sortings
1100
x6226
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