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EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)
19:34:12
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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
#
Name
1854A1
Dual (Easy Version)
constructive algorithms
,
math
1400
x13628
1853B
Fibonaccharsis
binary search
,
brute force
,
math
1200
x16855
1853A
Desorting
brute force
,
greedy
,
math
800
x29546
1852F
Panda Meetups
data structures
,
dp
,
flows
3500
x102
1852E
Rivalries
constructive algorithms
,
data structures
,
greedy
3400
x162
1852D
Miriany and Matchstick
constructive algorithms
,
dp
,
greedy
2800
x434
1852C
Ina of the Mountain
data structures
,
dp
,
greedy
,
math
2400
x1484
1852B
Imbalanced Arrays
constructive algorithms
,
graphs
,
greedy
,
math
,
sortings
,
two pointers
1800
x4261
1852A
Ntarsis' Set
binary search
,
math
,
number theory
1800
x7750
1851G
Vlad and the Mountains
binary search
,
data structures
,
dsu
,
graphs
,
implementation
,
sortings
,
trees
,
two pointers
2000
x3066
1851F
Lisa and the Martians
bitmasks
,
greedy
,
math
,
strings
,
trees
1800
x5503
1851E
Nastya and Potions
dfs and similar
,
dp
,
graphs
,
sortings
1500
x9749
1851D
Prefix Permutation Sums
implementation
,
math
1300
x14663
1851C
Tiles Comeback
greedy
1000
x22702
1851B
Parity Sort
greedy
,
sortings
,
two pointers
800
x28606
1851A
Escalator Conversations
brute force
,
constructive algorithms
,
math
800
x29004
1850H
The Third Letter
dfs and similar
,
dsu
,
graphs
,
greedy
,
implementation
1700
x7778
1850G
The Morning Star
combinatorics
,
data structures
,
geometry
,
implementation
,
math
,
sortings
1500
x11626
1850F
We Were Both Children
brute force
,
implementation
,
math
,
number theory
1300
x17871
1850E
Cardboard for Pictures
binary search
,
geometry
,
implementation
,
math
1100
x21641
1850D
Balanced Round
brute force
,
greedy
,
implementation
,
sortings
900
x33900
1850C
Word on the Paper
implementation
,
strings
800
x42284
1850B
Ten Words of Wisdom
implementation
,
sortings
800
x41362
1850A
To My Critics
implementation
,
sortings
800
x52906
1849F
XOR Partition
binary search
,
bitmasks
,
data structures
,
divide and conquer
,
greedy
,
trees
2700
x678
1849E
Max to the Right of Min
binary search
,
data structures
,
divide and conquer
,
dp
,
dsu
,
two pointers
2300
x1554
1849D
Array Painting
constructive algorithms
,
greedy
,
two pointers
1700
x7966
1849C
Binary String Copying
binary search
,
brute force
,
data structures
,
hashing
,
strings
1600
x10072
1849B
Monsters
greedy
,
math
,
sortings
1000
x23750
1849A
Morning Sandwich
implementation
,
math
800
x27360
1848F
Vika and Wiki
binary search
,
bitmasks
,
combinatorics
,
divide and conquer
,
dp
,
math
2400
x1485
1848E
Vika and Stone Skipping
brute force
,
implementation
,
math
,
number theory
2600
x757
1848D
Vika and Bonuses
binary search
,
brute force
,
math
,
ternary search
2200
x2541
1848C
Vika and Price Tags
math
,
number theory
1800
x6095
1848B
Vika and the Bridge
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
1200
x13921
1848A
Vika and Her Friends
games
,
math
900
x16450
1847F
The Boss's Identity
binary search
,
bitmasks
,
data structures
,
dfs and similar
,
greedy
,
math
,
sortings
2500
x865
1847E
Triangle Platinum?
brute force
,
combinatorics
,
implementation
,
interactive
,
math
,
probabilities
2900
x321
1847D
Professor Higashikata
data structures
,
dsu
,
greedy
,
implementation
,
strings
1900
x3654
1847C
Vampiric Powers, anyone?
bitmasks
,
brute force
,
dp
,
greedy
1400
x12444
1847B
Hamon Odyssey
bitmasks
,
greedy
,
two pointers
1000
x19441
1847A
The Man who became a God
greedy
,
sortings
800
x21820
1846G
Rudolf and CodeVid-23
bitmasks
,
dp
,
graphs
,
greedy
,
shortest paths
1900
x4180
1846F
Rudolph and Mimic
constructive algorithms
,
implementation
,
interactive
1800
x2970
1846E2
Rudolf and Snowflakes (hard version)
binary search
,
brute force
,
implementation
,
math
1800
x6731
1846E1
Rudolf and Snowflakes (simple version)
brute force
,
implementation
,
math
1300
x15872
1846D
Rudolph and Christmas Tree
constructive algorithms
,
geometry
,
math
1200
x18691
1846C
Rudolf and the Another Competition
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1200
x18294
1846B
Rudolph and Tic-Tac-Toe
brute force
,
implementation
,
strings
800
x26393
1846A
Rudolph and Cut the Rope
implementation
,
math
800
x31879
1845F
Swimmers in the Pool
dp
,
fft
,
math
,
number theory
2800
x358
1845E
Boxes and Balls
dp
,
implementation
,
math
2500
x1289
1845D
Rating System
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
math
,
two pointers
1800
x7491
1845C
Strong Password
binary search
,
dp
,
greedy
,
strings
1400
x13627
1845B
Come Together
geometry
,
implementation
,
math
900
x21142
1845A
Forbidden Integer
constructive algorithms
,
implementation
,
math
,
number theory
800
x25509
1844H
Multiple of Three Cycles
combinatorics
,
data structures
,
dp
,
dsu
,
math
3400
x133
1844G
Tree Weights
bitmasks
,
constructive algorithms
,
data structures
,
dfs and similar
,
implementation
,
math
,
matrices
,
number theory
,
trees
3000
x673
1844F2
Min Cost Permutation (Hard Version)
binary search
,
constructive algorithms
,
data structures
,
greedy
,
math
,
sortings
2800
x377
1844F1
Min Cost Permutation (Easy Version)
brute force
,
constructive algorithms
,
greedy
,
math
2600
x748
1844E
Great Grids
2-sat
,
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
2400
x1703
1844D
Row Major
constructive algorithms
,
greedy
,
math
,
number theory
,
strings
1400
x11893
1844C
Particles
dp
,
greedy
,
implementation
,
math
1300
x15125
1844B
Permutations & Primes
constructive algorithms
,
math
1000
x17712
1844A
Subtraction Game
constructive algorithms
,
games
800
x24124
1843F2
Omsk Metro (hard version)
data structures
,
dfs and similar
,
divide and conquer
,
dp
,
math
,
trees
2300
x1509
1843F1
Omsk Metro (simple version)
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
math
,
trees
1800
x5085
1843E
Tracking Segments
binary search
,
brute force
,
data structures
,
two pointers
1600
x11448
1843D
Apple Tree
combinatorics
,
dfs and similar
,
dp
,
math
,
trees
1200
x17358
1843C
Sum in Binary Tree
bitmasks
,
combinatorics
,
math
,
trees
800
x31797
1843B
Long Long
greedy
,
math
,
two pointers
800
x28383
1843A
Sasha and Array Coloring
greedy
,
sortings
,
two pointers
800
x33460
1842I
Tenzing and Necklace
divide and conquer
,
dp
,
greedy
3500
x116
1842H
Tenzing and Random Real Numbers
bitmasks
,
dp
,
graphs
,
math
,
probabilities
3000
x579
1842G
Tenzing and Random Operations
combinatorics
,
dp
,
math
,
probabilities
2800
x959
1842F
Tenzing and Tree
dfs and similar
,
greedy
,
shortest paths
,
sortings
,
trees
2500
x1263
1842E
Tenzing and Triangle
data structures
,
dp
,
geometry
,
greedy
,
math
2300
x1558
1842D
Tenzing and His Animal Friends
constructive algorithms
,
graphs
,
greedy
1900
x3966
1842C
Tenzing and Balls
dp
1500
x12055
1842B
Tenzing and Books
bitmasks
,
greedy
,
math
1100
x16208
1842A
Tenzing and Tsondu
games
,
math
800
x19597
1841F
Monocarp and a Strategic Game
geometry
,
sortings
,
two pointers
2700
x479
1841E
Fill the Matrix
data structures
,
greedy
,
math
2200
x1924
1841D
Pairs of Segments
data structures
,
greedy
,
sortings
,
two pointers
2000
x4223
1841C
Ranom Numbers
brute force
,
dp
,
greedy
,
math
,
strings
1800
x7458
1841B
Keep it Beautiful
implementation
1000
x20950
1841A
Game with Board
constructive algorithms
,
games
800
x24416
1840G2
In Search of Truth (Hard Version)
constructive algorithms
,
interactive
,
math
,
meet-in-the-middle
,
probabilities
2500
x913
1840G1
In Search of Truth (Easy Version)
constructive algorithms
,
interactive
,
math
,
meet-in-the-middle
,
probabilities
2200
x2267
1840F
Railguns
brute force
,
dfs and similar
,
dp
,
graphs
2200
x1731
1840E
Character Blocking
data structures
,
hashing
,
implementation
1600
x7731
1840D
Wooden Toy Festival
binary search
,
greedy
,
sortings
1400
x13158
1840C
Ski Resort
combinatorics
,
math
,
two pointers
1000
x25677
1840B
Binary Cafe
bitmasks
,
combinatorics
,
math
1100
x21889
1840A
Cipher Shifer
implementation
,
strings
,
two pointers
800
x33228
1839E
Decreasing Game
constructive algorithms
,
dfs and similar
,
dp
,
greedy
,
interactive
2400
x1179
1839D
Ball Sorting
data structures
,
dp
,
sortings
2100
x2228
1839C
Insert Zero and Invert Prefix
constructive algorithms
1300
x11571
1839B
Lamps
greedy
,
sortings
1100
x14710
1839A
The Good Array
greedy
,
implementation
,
math
800
x17220
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