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EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)
37:30:31
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combine-tags-by-or
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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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Status
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Custom test
Problems
#
Name
1330B
Dreamoon Likes Permutations
implementation
,
math
1400
x13917
1330A
Dreamoon and Ranking Collection
implementation
900
x18595
1329E
Dreamoon Loves AA
binary search
,
greedy
3300
x175
1329D
Dreamoon Likes Strings
constructive algorithms
,
data structures
3100
x391
1329C
Drazil Likes Heap
constructive algorithms
,
data structures
,
greedy
,
implementation
2400
x1672
1329B
Dreamoon Likes Sequences
bitmasks
,
combinatorics
,
math
1700
x6581
1329A
Dreamoon Likes Coloring
constructive algorithms
,
greedy
,
implementation
,
math
1800
x8996
1328F
Make k Equal
greedy
2200
x3160
1328E
Tree Queries
dfs and similar
,
graphs
,
trees
1900
x9137
1328D
Carousel
constructive algorithms
,
dp
,
graphs
,
greedy
,
math
1800
x12834
1328C
Ternary XOR
greedy
,
implementation
1200
x29799
1328B
K-th Beautiful String
binary search
,
brute force
,
combinatorics
,
implementation
,
math
1300
x28526
1328A
Divisibility Problem
math
800
x96064
1327G
Letters and Question Marks
bitmasks
,
dp
,
string suffix structures
2800
x408
1327F
AND Segments
bitmasks
,
combinatorics
,
data structures
,
dp
,
two pointers
2500
x1617
1327E
Count The Blocks
combinatorics
,
dp
,
math
1800
x8799
1327D
Infinite Path
brute force
,
dfs and similar
,
graphs
,
math
,
number theory
2200
x3234
1327C
Game with Chips
constructive algorithms
,
implementation
1600
x13287
1327B
Princesses and Princes
brute force
,
graphs
,
greedy
1200
x18519
1327A
Sum of Odd Integers
math
1100
x37658
1326G
Spiderweb Trees
dp
,
geometry
,
trees
3500
x72
1326F2
Wise Men (Hard Version)
bitmasks
,
dp
,
math
3200
x474
1326F1
Wise Men (Easy Version)
bitmasks
,
brute force
,
dp
,
meet-in-the-middle
2600
x826
1326E
Bombs
data structures
,
two pointers
2400
x2160
1326D2
Prefix-Suffix Palindrome (Hard version)
binary search
,
greedy
,
hashing
,
string suffix structures
,
strings
1800
x9876
1326D1
Prefix-Suffix Palindrome (Easy version)
hashing
,
string suffix structures
,
strings
1500
x11892
1326C
Permutation Partitions
combinatorics
,
greedy
,
math
1300
x15497
1326B
Maximums
implementation
,
math
900
x23810
1326A
Bad Ugly Numbers
constructive algorithms
,
number theory
1000
x29863
1325F
Ehab's Last Theorem
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
2500
x1894
1325E
Ehab's REAL Number Theory Problem
brute force
,
dfs and similar
,
graphs
,
number theory
,
shortest paths
2600
x2003
1325D
Ehab the Xorcist
bitmasks
,
constructive algorithms
,
greedy
,
number theory
1700
x11833
1325C
Ehab and Path-etic MEXs
constructive algorithms
,
dfs and similar
,
greedy
,
trees
1500
x13238
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x35324
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x38896
1324F
Maximum White Subtree
dfs and similar
,
dp
,
graphs
,
trees
1800
x9451
1324E
Sleeping Schedule
dp
,
implementation
1700
x12985
1324D
Pair of Topics
binary search
,
data structures
,
sortings
,
two pointers
1400
x27353
1324C
Frog Jumps
binary search
,
data structures
,
dfs and similar
,
greedy
,
implementation
1100
x27301
1324B
Yet Another Palindrome Problem
brute force
,
strings
1100
x27839
1324A
Yet Another Tetris Problem
implementation
,
number theory
900
x25664
1323B
Count Subrectangles
binary search
,
greedy
,
implementation
1500
x8780
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x19590
1322F
Assigning Fares
dp
,
trees
3500
x91
1322E
Median Mountain Range
data structures
3300
x297
1322D
Reality Show
bitmasks
,
dp
2800
x706
1322C
Instant Noodles
graphs
,
hashing
,
math
,
number theory
2300
x2359
1322B
Present
binary search
,
bitmasks
,
constructive algorithms
,
data structures
,
math
,
sortings
2100
x4120
1322A
Unusual Competitions
greedy
1300
x12385
1321C
Remove Adjacent
brute force
,
constructive algorithms
,
greedy
,
strings
1600
x9714
1321A
Contest for Robots
greedy
900
x14206
1320F
Blocks and Sensors
brute force
3500
x153
1320E
Treeland and Viruses
data structures
,
dfs and similar
,
dp
,
shortest paths
,
trees
3000
x800
1320D
Reachable Strings
data structures
,
hashing
,
strings
2500
x1404
1320C
World of Darkraft: Battle for Azathoth
brute force
,
data structures
,
sortings
2000
x3057
1320B
Navigation System
dfs and similar
,
graphs
,
shortest paths
1700
x5957
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x15858
1316F
Battalion Strength
data structures
,
divide and conquer
,
probabilities
2800
x780
1316E
Team Building
bitmasks
,
dp
,
greedy
,
sortings
2300
x3725
1316D
Nash Matrix
constructive algorithms
,
dfs and similar
,
graphs
,
implementation
2000
x3354
1316C
Primitive Primes
constructive algorithms
,
math
,
ternary search
1800
x7194
1316B
String Modification
brute force
,
constructive algorithms
,
implementation
,
sortings
,
strings
1400
x11176
1316A
Grade Allocation
implementation
800
x18573
1315C
Restoring Permutation
greedy
1200
x9977
1315B
Homecoming
binary search
,
dp
,
greedy
,
strings
1300
x9123
1315A
Dead Pixel
implementation
800
x11975
1313E
Concatenation with intersection
data structures
,
hashing
,
strings
,
two pointers
2700
x524
1313D
Happy New Year
bitmasks
,
dp
,
implementation
2500
x1309
1313C2
Skyscrapers (hard version)
data structures
,
dp
,
greedy
1900
x6347
1313C1
Skyscrapers (easy version)
brute force
,
data structures
,
dp
,
greedy
1500
x10282
1313B
Different Rules
constructive algorithms
,
greedy
,
implementation
,
math
1700
x6619
1313A
Fast Food Restaurant
brute force
,
greedy
,
implementation
900
x15387
1312G
Autocompletion
data structures
,
dfs and similar
,
dp
2600
x966
1312F
Attack on Red Kingdom
games
,
two pointers
2500
x877
1312E
Array Shrinking
dp
,
greedy
2100
x5739
1312D
Count the Arrays
combinatorics
,
math
1700
x9210
1312C
Adding Powers
bitmasks
,
greedy
,
implementation
,
math
,
number theory
,
ternary search
1400
x16179
1312B
Bogosort
constructive algorithms
,
sortings
1000
x25465
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x25590
1311F
Moving Points
data structures
,
divide and conquer
,
implementation
,
sortings
1900
x4129
1311E
Construct the Binary Tree
brute force
,
constructive algorithms
,
trees
2200
x2302
1311D
Three Integers
brute force
,
math
2000
x8882
1311C
Perform the Combo
brute force
1300
x15811
1311B
WeirdSort
dfs and similar
,
sortings
1200
x18708
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x41194
1310F
Bad Cryptography
math
,
number theory
3400
x71
1310E
Strange Function
dp
2900
x272
1310D
Tourism
dp
,
graphs
,
probabilities
2300
x1491
1310C
Au Pont Rouge
binary search
,
dp
,
strings
2800
x488
1310B
Double Elimination
dp
,
implementation
2500
x492
1310A
Recommendations
data structures
,
greedy
,
sortings
1700
x5138
1307G
Cow and Exercise
flows
,
graphs
,
shortest paths
3100
x486
1307F
Cow and Vacation
dfs and similar
,
dsu
,
trees
3300
x573
1307E
Cow and Treats
binary search
,
combinatorics
,
dp
,
greedy
,
implementation
,
math
2500
x1260
1307D
Cow and Fields
binary search
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
shortest paths
,
sortings
1900
x6218
1307C
Cow and Message
brute force
,
dp
,
math
,
strings
1500
x11717
1307B
Cow and Friend
geometry
,
greedy
,
math
1300
x13093
1307A
Cow and Haybales
greedy
,
implementation
800
x14887
1305H
Kuroni the Private Tutor
binary search
,
greedy
3500
x113
1305G
Kuroni and Antihype
bitmasks
,
brute force
,
dp
,
dsu
,
graphs
3500
x959
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