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EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)
41:52:47
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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
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Custom test
Problems
#
Name
154A
Hometask
greedy
1600
x4007
153E
Euclidean Distance
*special problem
2100
x75
153D
Date Change
*special problem
2000
x82
153C
Caesar Cipher
*special problem
2200
x370
153B
Binary notation
*special problem
1800
x154
153A
A + B
*special problem
1600
x765
152E
Garden
bitmasks
,
dp
,
graphs
,
trees
2500
x466
152D
Frames
brute force
2600
x240
152C
Pocket Book
combinatorics
1400
x10409
152B
Steps
binary search
,
implementation
1300
x6422
152A
Marks
implementation
900
x16366
151B
Phone Numbers
implementation
,
strings
1200
x6261
151A
Soft Drinking
implementation
,
math
800
x68016
150E
Freezing with Style
binary search
,
data structures
,
divide and conquer
,
trees
3000
x810
150D
Mission Impassable
dp
,
strings
2600
x591
150C
Smart Cheater
data structures
,
math
,
probabilities
2200
x635
150B
Quantity of Strings
combinatorics
,
dfs and similar
,
graphs
,
math
1600
x4024
150A
Win or Freeze
games
,
math
,
number theory
1400
x7630
149E
Martian Strings
string suffix structures
,
strings
2300
x2050
149D
Coloring Brackets
dp
1900
x3618
149C
Division into Teams
greedy
,
math
,
sortings
1500
x5297
149B
Martian Clock
implementation
1600
x2234
149A
Business trip
greedy
,
implementation
,
sortings
900
x38401
148E
Porcelain
dp
1900
x3835
148D
Bag of mice
dp
,
games
,
math
,
probabilities
1800
x6885
148C
Terse princess
constructive algorithms
,
greedy
1700
x3078
148B
Escape
implementation
,
math
1500
x5332
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x88844
147B
Smile House
binary search
,
graphs
,
matrices
2500
x755
147A
Punctuation
implementation
,
strings
1300
x3572
146B
Lucky Mask
brute force
,
implementation
1300
x4273
146A
Lucky Ticket
implementation
800
x14774
145E
Lucky Queries
data structures
2400
x2981
145D
Lucky Pair
combinatorics
,
data structures
,
implementation
2900
x242
145C
Lucky Subsequence
combinatorics
,
dp
,
math
2100
x1893
145B
Lucky Number 2
constructive algorithms
1800
x2166
145A
Lucky Conversion
greedy
,
implementation
1200
x6994
144E
Competition
data structures
,
greedy
2200
x569
144D
Missile Silos
data structures
,
dfs and similar
,
graphs
,
shortest paths
1900
x3839
144C
Anagram Search
implementation
,
strings
1500
x3920
144B
Meeting
implementation
1300
x5103
144A
Arrival of the General
implementation
800
x91126
143B
Help Kingdom of Far Far Away 2
implementation
,
strings
1200
x4938
143A
Help Vasilisa the Wise 2
brute force
,
math
1000
x13322
142E
Help Greg the Dwarf 2
geometry
3000
x80
142D
Help Shrek and Donkey 2
games
2600
x340
142C
Help Caretaker
brute force
,
dp
2300
x904
142B
Help General
constructive algorithms
,
greedy
,
implementation
1800
x2148
142A
Help Farmer
brute force
,
math
1600
x2588
141E
Clearing Up
constructive algorithms
,
dp
,
dsu
,
graphs
2300
x871
141D
Take-off Ramps
graphs
,
shortest paths
2300
x884
141C
Queue
constructive algorithms
,
greedy
,
sortings
1800
x2401
141B
Hopscotch
geometry
,
math
1400
x5172
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x79482
140F
New Year Snowflake
geometry
,
sortings
2600
x364
140E
New Year Garland
combinatorics
,
dp
2600
x878
140D
New Year Contest
greedy
,
sortings
1800
x2198
140C
New Year Snowmen
binary search
,
data structures
,
greedy
1800
x4227
140B
New Year Cards
brute force
,
greedy
,
implementation
1800
x1526
140A
New Year Table
geometry
,
math
1700
x4105
139B
Wallpaper
implementation
,
math
1600
x1284
139A
Petr and Book
implementation
1000
x29549
138E
Hellish Constraints
brute force
,
dp
,
two pointers
2900
x171
138D
World of Darkraft
dp
,
games
2500
x474
138C
Mushroom Gnomes - 2
binary search
,
data structures
,
probabilities
,
sortings
2200
x847
138B
Digits Permutations
greedy
1900
x1013
138A
Literature Lesson
implementation
1600
x2349
137E
Last Chance
data structures
,
implementation
,
strings
2000
x1199
137D
Palindromes
dp
,
strings
1900
x1482
137C
History
sortings
1500
x7117
137B
Permutation
greedy
1000
x13421
137A
Postcards and photos
implementation
900
x6997
136B
Ternary Logic
implementation
,
math
1100
x4775
136A
Presents
implementation
800
x111714
135E
Weak Subsequence
combinatorics
3000
x268
135D
Cycle
brute force
,
dfs and similar
,
implementation
2500
x295
135C
Zero-One
constructive algorithms
,
games
,
greedy
1900
x1325
135B
Rectangle and Square
brute force
,
geometry
,
math
1600
x2310
135A
Replacement
greedy
,
implementation
,
sortings
1300
x7472
134C
Swaps
constructive algorithms
,
graphs
,
greedy
2200
x462
134B
Pairs of Numbers
brute force
,
dfs and similar
,
math
,
number theory
1900
x1934
134A
Average Numbers
brute force
,
implementation
1200
x3829
133B
Unary
implementation
1200
x8701
133A
HQ9+
implementation
900
x101785
132E
Bits of merry old England
flows
,
graphs
2700
x526
132D
Constants in the language of Shakespeare
constructive algorithms
,
dp
,
greedy
2100
x608
132C
Logo Turtle
dp
1800
x2284
132B
Piet
implementation
2100
x513
132A
Turing Tape
implementation
1300
x2748
131F
Present to Mom
binary search
,
two pointers
2000
x635
131E
Yet Another Task with Queens
sortings
1700
x1823
131D
Subway
dfs and similar
,
graphs
1600
x4542
131C
The World is a Theatre
combinatorics
,
math
1400
x10765
131B
Opposites Attract
implementation
,
math
1200
x6899
131A
cAPS lOCK
implementation
,
strings
1000
x82736
130J
Date calculation
*special problem
1800
x327
130I
Array sorting
*special problem
,
sortings
2300
x166
130H
Balanced brackets
*special problem
1600
x541
130G
CAPS LOCK ON
*special problem
1700
x275
130F
Prime factorization
*special problem
1600
x275
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