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TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!)
44:15:27
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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
1443B
Saving the City
dp
,
greedy
,
math
,
sortings
1300
x14057
1713C
Build Permutation
constructive algorithms
,
dp
,
math
1200
x14013
1304C
Air Conditioner
dp
,
greedy
,
implementation
,
sortings
,
two pointers
1500
x13987
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x13966
1661B
Getting Zero
bitmasks
,
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
shortest paths
1300
x13915
1637B
MEX and Array
brute force
,
dp
,
greedy
,
math
1100
x13883
1451C
String Equality
dp
,
greedy
,
hashing
,
implementation
,
strings
1400
x13717
1492C
Maximum width
binary search
,
data structures
,
dp
,
greedy
,
two pointers
1500
x13619
1389B
Array Walk
brute force
,
dp
,
greedy
1600
x13582
522A
Reposts
*special problem
,
dfs and similar
,
dp
,
graphs
,
trees
1200
x13568
706C
Hard problem
dp
,
strings
1600
x13552
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x13514
1108D
Diverse Garland
constructive algorithms
,
dp
,
greedy
1400
x13495
1272D
Remove One Element
brute force
,
dp
1500
x13461
1391C
Cyclic Permutations
combinatorics
,
dp
,
graphs
,
math
1500
x13453
839C
Journey
dfs and similar
,
dp
,
graphs
,
probabilities
,
trees
1500
x13308
1373D
Maximum Sum on Even Positions
divide and conquer
,
dp
,
greedy
,
implementation
1600
x13207
977F
Consecutive Subsequence
dp
1700
x13073
1200B
Block Adventure
dp
,
greedy
1200
x12822
1176C
Lose it!
dp
,
greedy
,
implementation
1300
x12822
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x12681
1245B
Restricted RPS
constructive algorithms
,
dp
,
greedy
1200
x12649
1459B
Move and Turn
dp
,
math
1300
x12436
1553B
Reverse String
brute force
,
dp
,
hashing
,
implementation
,
strings
1300
x12312
467C
George and Job
dp
,
implementation
1700
x12308
1253C
Sweets Eating
dp
,
greedy
,
math
,
sortings
1500
x12265
1519D
Maximum Sum of Products
brute force
,
dp
,
implementation
,
math
,
two pointers
1600
x12255
349B
Color the Fence
data structures
,
dp
,
greedy
,
implementation
1700
x12216
1706C
Qpwoeirut And The City
dp
,
flows
,
greedy
,
implementation
1400
x12200
1178B
WOW Factor
dp
,
strings
1300
x12056
1395C
Boboniu and Bit Operations
bitmasks
,
brute force
,
dp
,
greedy
1600
x12043
1536C
Diluc and Kaeya
data structures
,
dp
,
hashing
,
number theory
1500
x11770
1692G
2^Sort
data structures
,
dp
,
sortings
,
two pointers
1400
x11730
1644C
Increase Subarray Sums
brute force
,
dp
,
greedy
,
implementation
1400
x11635
998B
Cutting
dp
,
greedy
,
sortings
1200
x11635
1528A
Parsa's Humongous Tree
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
trees
1600
x11615
987C
Three displays
brute force
,
dp
,
implementation
1400
x11591
1547E
Air Conditioners
data structures
,
dp
,
implementation
,
shortest paths
,
sortings
,
two pointers
1500
x11586
1461B
Find the Spruce
brute force
,
dp
,
implementation
1400
x11506
1140D
Minimum Triangulation
dp
,
greedy
,
math
1200
x11480
1553D
Backspace
dp
,
greedy
,
strings
,
two pointers
1500
x11477
1295C
Obtain The String
dp
,
greedy
,
strings
1600
x11461
1753A1
Make Nonzero Sum (easy version)
constructive algorithms
,
dp
,
greedy
1300
x11312
1234C
Pipes
dp
,
implementation
1500
x11223
1732B
Ugu
brute force
,
dp
,
greedy
,
implementation
900
x11206
446A
DZY Loves Sequences
dp
,
implementation
,
two pointers
1600
x11184
1534C
Little Alawn's Puzzle
combinatorics
,
dp
,
dsu
,
graphs
,
math
1300
x11156
1276A
As Simple as One and Two
dp
,
greedy
1400
x11148
1328D
Carousel
constructive algorithms
,
dp
,
graphs
,
greedy
,
math
1800
x11099
1513C
Add One
dp
,
matrices
1600
x10912
1646C
Factorials and Powers of Two
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
math
1500
x10756
1288C
Two Arrays
combinatorics
,
dp
1600
x10736
1455D
Sequence and Swaps
dp
,
greedy
,
sortings
1600
x10726
1215B
The Number of Products
combinatorics
,
dp
,
implementation
1400
x10726
1307C
Cow and Message
brute force
,
dp
,
math
,
strings
1500
x10723
276D
Little Girl and Maximum XOR
bitmasks
,
dp
,
greedy
,
implementation
,
math
1700
x10678
1567C
Carrying Conundrum
bitmasks
,
combinatorics
,
dp
,
math
1600
x10643
1360F
Spy-string
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
hashing
,
strings
1700
x10633
165C
Another Problem on Strings
binary search
,
brute force
,
dp
,
math
,
strings
,
two pointers
1600
x10540
1282B1
K for the Price of One (Easy Version)
dp
,
greedy
,
sortings
1400
x10503
161D
Distance in Tree
dfs and similar
,
dp
,
trees
1800
x10500
1632C
Strange Test
binary search
,
bitmasks
,
brute force
,
dp
,
math
1600
x10442
1324E
Sleeping Schedule
dp
,
implementation
1700
x10433
1633D
Make Them Equal
dp
,
greedy
1600
x10430
1537E1
Erase and Extend (Easy Version)
binary search
,
brute force
,
dp
,
greedy
,
hashing
,
implementation
,
string suffix structures
,
strings
,
two pointers
1600
x10417
1676G
White-Black Balanced Subtrees
dfs and similar
,
dp
,
graphs
,
trees
1300
x10360
505B
Mr. Kitayuta's Colorful Graph
dfs and similar
,
dp
,
dsu
,
graphs
1400
x10287
295B
Greg and Graph
dp
,
graphs
,
shortest paths
1700
x10102
1284B
New Year and Ascent Sequence
binary search
,
combinatorics
,
data structures
,
dp
,
implementation
,
sortings
1400
x10032
1516C
Baby Ehab Partitions Again
bitmasks
,
constructive algorithms
,
dp
,
math
1700
x9972
5C
Longest Regular Bracket Sequence
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
,
strings
1900
x9951
1555D
Say No to Palindromes
brute force
,
constructive algorithms
,
dp
,
strings
1600
x9912
1476C
Longest Simple Cycle
dp
,
graphs
,
greedy
1600
x9904
1398D
Colored Rectangles
dp
,
greedy
,
sortings
1800
x9888
546D
Soldier and Number Game
constructive algorithms
,
dp
,
math
,
number theory
1700
x9837
1461C
Random Events
dp
,
math
,
probabilities
1500
x9826
1766C
Hamiltonian Wall
dp
,
implementation
1300
x9820
1509C
The Sports Festival
dp
,
greedy
1800
x9792
910A
The Way to Home
dfs and similar
,
dp
,
greedy
,
implementation
800
x9756
1415C
Bouncing Ball
brute force
,
dp
,
implementation
1400
x9721
1189C
Candies!
data structures
,
dp
,
implementation
,
math
1400
x9616
1335E1
Three Blocks Palindrome (easy version)
binary search
,
brute force
,
data structures
,
dp
,
two pointers
1700
x9584
1469C
Building a Fence
dp
,
greedy
,
implementation
,
two pointers
1600
x9516
577B
Modulo Sum
combinatorics
,
data structures
,
dp
,
two pointers
1900
x9478
1105C
Ayoub and Lost Array
combinatorics
,
dp
,
math
1500
x9301
982C
Cut 'em all!
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
1500
x9288
1626C
Monsters And Spells
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
math
,
two pointers
1700
x9282
1673C
Palindrome Basis
brute force
,
dp
,
math
,
number theory
1500
x9276
1313C1
Skyscrapers (easy version)
brute force
,
data structures
,
dp
,
greedy
1500
x9266
1282B2
K for the Price of One (Hard Version)
dp
,
greedy
,
sortings
1600
x9125
763A
Timofey and a tree
dfs and similar
,
dp
,
dsu
,
graphs
,
implementation
,
trees
1600
x9076
1151B
Dima and a Bad XOR
bitmasks
,
brute force
,
constructive algorithms
,
dp
1600
x9049
602B
Approximating a Constant Range
dp
,
implementation
,
two pointers
1400
x9016
797B
Odd sum
dp
,
greedy
,
implementation
1400
x9005
628B
New Skateboard
dp
1300
x8998
253B
Physics Practical
binary search
,
dp
,
sortings
,
two pointers
1400
x8882
1437C
Chef Monocarp
dp
,
flows
,
graph matchings
,
greedy
,
math
,
sortings
1800
x8866
777B
Game of Credit Cards
data structures
,
dp
,
greedy
,
sortings
1300
x8840
1005D
Polycarp and Div 3
dp
,
greedy
,
number theory
1500
x8801
1207C
Gas Pipeline
dp
,
greedy
1500
x8796
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