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Problems
#
Name
1703B
ICPC Balloons
data structures
,
implementation
800
x45666
1760C
Advantage
data structures
,
implementation
,
sortings
800
x35184
1722C
Word Game
data structures
,
implementation
800
x29598
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x29400
1690C
Restoring the Duration of Tasks
data structures
,
greedy
,
implementation
800
x25500
1497A
Meximization
brute force
,
data structures
,
greedy
,
sortings
800
x23913
1730A
Planets
data structures
,
greedy
,
sortings
800
x22543
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x20780
1200A
Hotelier
brute force
,
data structures
,
implementation
800
x20056
1767B
Block Towers
data structures
,
greedy
,
sortings
800
x19597
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x19206
1799A
Recent Actions
data structures
,
greedy
,
implementation
,
math
800
x11369
1807D
Odd Queries
data structures
,
implementation
900
x28911
1380A
Three Indices
brute force
,
data structures
900
x23408
1918B
Minimize Inversions
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
900
x22220
1709B
Also Try Minecraft
data structures
,
dp
,
implementation
900
x21899
1689B
Mystic Permutation
data structures
,
greedy
900
x17125
1955B
Progressive Square
constructive algorithms
,
data structures
,
implementation
,
sortings
1000
x24085
1907B
YetnotherrokenKeoard
data structures
,
implementation
,
strings
1000
x23433
1430C
Numbers on Whiteboard
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
1000
x23387
1800C1
Powering the Hero (easy version)
data structures
,
greedy
1000
x22423
1622B
Berland Music
data structures
,
greedy
,
math
,
sortings
1000
x20564
1165B
Polycarp Training
data structures
,
greedy
,
sortings
1000
x20367
1438B
Valerii Against Everyone
constructive algorithms
,
data structures
,
greedy
,
sortings
1000
x18528
1798B
Three Sevens
brute force
,
data structures
,
greedy
,
implementation
1000
x15927
368B
Sereja and Suffixes
data structures
,
dp
1100
x39623
519B
A and B and Compilation Errors
data structures
,
implementation
,
sortings
1100
x37822
1324C
Frog Jumps
binary search
,
data structures
,
dfs and similar
,
greedy
,
implementation
1100
x26950
1213B
Bad Prices
data structures
,
implementation
1100
x25668
1703D
Double Strings
brute force
,
data structures
,
strings
1100
x24474
1669F
Eating Candies
binary search
,
data structures
,
greedy
,
two pointers
1100
x23297
1511C
Yet Another Card Deck
brute force
,
data structures
,
implementation
,
trees
1100
x22257
1702C
Train and Queries
data structures
,
greedy
1100
x21534
1800C2
Powering the Hero (hard version)
data structures
,
greedy
1100
x21405
1638B
Odd Swap Sort
data structures
,
math
,
sortings
1100
x20427
1921D
Very Different Array
data structures
,
greedy
,
sortings
,
two pointers
1100
x20075
1862C
Flower City Fence
binary search
,
data structures
,
implementation
,
sortings
1100
x19736
1428C
ABBB
brute force
,
data structures
,
greedy
,
strings
1100
x19703
1917B
Erase First or Second Letter
brute force
,
combinatorics
,
data structures
,
dp
,
strings
1100
x19543
1760E
Binary Inversions
data structures
,
greedy
,
math
1100
x19336
767A
Snacktower
data structures
,
implementation
1100
x19309
1492B
Card Deck
data structures
,
greedy
,
math
1100
x18147
1807G1
Subsequence Addition (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
implementation
,
sortings
1100
x17903
1656B
Subtract Operation
data structures
,
greedy
,
math
,
two pointers
1100
x17726
501B
Misha and Changing Handles
data structures
,
dsu
,
strings
1100
x15647
1566D1
Seating Arrangements (easy version)
data structures
,
greedy
,
sortings
1100
x13787
427B
Prison Transfer
data structures
,
implementation
1100
x13724
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10946
522B
Photo to Remember
*special problem
,
data structures
,
dp
,
implementation
1100
x8693
834B
The Festive Evening
data structures
,
implementation
1100
x8526
1575A
Another Sorting Problem
data structures
,
sortings
,
strings
1100
x4227
1520D
Same Differences
data structures
,
hashing
,
math
1200
x42928
1364A
XXXXX
brute force
,
data structures
,
number theory
,
two pointers
1200
x26842
1800D
Remove Two Letters
data structures
,
greedy
,
hashing
,
strings
1200
x21790
1512D
Corrupted Array
constructive algorithms
,
data structures
,
greedy
1200
x21763
1006C
Three Parts of the Array
binary search
,
data structures
,
two pointers
1200
x20333
1598C
Delete Two Elements
data structures
,
dp
,
implementation
,
math
,
two pointers
1200
x20103
961B
Lecture Sleep
data structures
,
dp
,
implementation
,
two pointers
1200
x19314
1790D
Matryoshkas
data structures
,
greedy
,
sortings
1200
x18278
1793C
Dora and Search
constructive algorithms
,
data structures
,
two pointers
1200
x18246
1846C
Rudolf and the Another Competition
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1200
x18001
1679B
Stone Age Problem
data structures
,
implementation
1200
x17067
1669E
2-Letter Strings
data structures
,
math
,
strings
1200
x16970
1730C
Minimum Notation
data structures
,
greedy
,
math
,
sortings
1200
x16083
637B
Chat Order
*special problem
,
binary search
,
constructive algorithms
,
data structures
,
sortings
1200
x15085
1104B
Game with string
data structures
,
implementation
,
math
1200
x14502
1582C
Grandma Capa Knits a Scarf
brute force
,
data structures
,
greedy
,
strings
,
two pointers
1200
x14499
1763B
Incinerate
binary search
,
brute force
,
data structures
,
implementation
,
math
,
sortings
1200
x13946
1848B
Vika and the Bridge
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
1200
x13462
1214C
Bad Sequence
data structures
,
greedy
1200
x12865
18C
Stripe
data structures
,
implementation
1200
x12511
1951B
Battle Cows
binary search
,
data structures
,
greedy
1200
x12236
879B
Table Tennis
data structures
,
implementation
1200
x11885
701B
Cells Not Under Attack
data structures
,
math
1200
x11585
264A
Escape from Stones
constructive algorithms
,
data structures
,
implementation
,
two pointers
1200
x10613
4C
Registration System
data structures
,
hashing
,
implementation
1300
x77537
600B
Queries about less or equal elements
binary search
,
data structures
,
sortings
,
two pointers
1300
x27559
1538C
Number of Pairs
binary search
,
data structures
,
math
,
two pointers
1300
x27115
1381A1
Prefix Flip (Easy Version)
constructive algorithms
,
data structures
,
strings
1300
x19865
1915E
Romantic Glasses
data structures
,
greedy
,
math
1300
x18655
1927D
Find the Different Ones!
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
two pointers
1300
x18448
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x18312
1698C
3SUM Closure
brute force
,
data structures
1300
x17964
1234B2
Social Network (hard version)
data structures
,
implementation
1300
x16476
1498B
Box Fitting
binary search
,
bitmasks
,
data structures
,
greedy
1300
x16168
1676F
Longest Strike
data structures
,
greedy
,
implementation
,
sortings
,
two pointers
1300
x15894
1237B
Balanced Tunnel
data structures
,
sortings
,
two pointers
1300
x14777
1736C1
Good Subarrays (Easy Version)
binary search
,
data structures
,
schedules
,
two pointers
1300
x14554
1638C
Inversion Graph
data structures
,
dsu
,
graphs
,
math
1300
x14387
1265B
Beautiful Numbers
data structures
,
implementation
,
math
,
two pointers
1300
x12305
1726C
Jatayu's Balanced Bracket Sequence
data structures
,
dsu
,
graphs
,
greedy
1300
x12089
1007A
Reorder the Array
combinatorics
,
data structures
,
math
,
sortings
,
two pointers
1300
x11994
1100B
Build a Contest
data structures
,
implementation
1300
x10913
1870C
Colorful Table
binary search
,
data structures
,
dp
,
implementation
,
math
,
two pointers
1300
x10770
1867C
Salyg1n and the MEX Game
constructive algorithms
,
data structures
,
games
,
greedy
,
interactive
1300
x10607
777B
Game of Credit Cards
data structures
,
dp
,
greedy
,
sortings
1300
x9351
982B
Bus of Characters
data structures
,
greedy
,
implementation
1300
x8180
932B
Recursive Queries
binary search
,
data structures
,
dfs and similar
1300
x7799
572B
Order Book
data structures
,
greedy
,
implementation
,
sortings
1300
x6761
808B
Average Sleep Time
data structures
,
implementation
,
math
1300
x6686
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Codeforces Round 946 (Div. 3)
17:40:14
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data structures
combine-tags-by-or
*combine tags by OR
2-sat
binary search
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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
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two pointers
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