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EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)
47:07:46
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Difficulty:
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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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Custom test
Problems
#
Name
1422A
Fence
geometry
,
math
800
x20699
1421A
XORwice
bitmasks
,
greedy
,
math
800
x27725
1420A
Cubes Sorting
math
,
sortings
900
x23022
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x23846
1419A
Digit Game
games
,
greedy
,
implementation
900
x19359
1418A
Buying Torches
math
1000
x22016
1417A
Copy-paste
greedy
,
math
800
x18083
1415A
Prison Break
brute force
,
math
800
x14958
1413A
Finding Sasuke
constructive algorithms
,
math
800
x14632
1411B
Fair Numbers
brute force
,
number theory
1000
x18260
1411A
In-game Chat
implementation
800
x20200
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x63745
1408A
Circle Coloring
constructive algorithms
800
x12418
1406A
Subset Mex
greedy
,
implementation
,
math
900
x21045
1405B
Array Cancellation
constructive algorithms
,
implementation
1000
x21157
1405A
Permutation Forgery
constructive algorithms
800
x21280
1401A
Distance and Axis
constructive algorithms
,
math
900
x27032
1400A
String Similarity
constructive algorithms
,
strings
800
x26651
1399B
Gifts Fixing
greedy
800
x42735
1399A
Remove Smallest
greedy
,
sortings
800
x63984
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x24192
1398A
Bad Triangle
geometry
,
math
800
x27141
1397A
Juggling Letters
greedy
,
strings
800
x28249
1395A
Boboniu Likes to Color Balls
brute force
,
math
1000
x23646
1393A
Rainbow Dash, Fluttershy and Chess Coloring
greedy
,
math
800
x20254
1392B
Omkar and Infinity Clock
implementation
,
math
800
x18419
1392A
Omkar and Password
greedy
,
math
800
x20280
1391B
Fix You
brute force
,
greedy
,
implementation
800
x26394
1391A
Suborrays
constructive algorithms
,
math
800
x24065
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x39331
1388B
Captain Flint and a Long Voyage
greedy
,
math
1000
x21981
1388A
Captain Flint and Crew Recruitment
brute force
,
greedy
,
math
,
number theory
800
x24611
1385B
Restore the Permutation by Merger
greedy
800
x36592
1385A
Three Pairwise Maximums
math
800
x38100
1382A
Common Subsequence
brute force
800
x26170
1380A
Three Indices
brute force
,
data structures
900
x24260
1374C
Move Brackets
greedy
,
strings
1000
x44445
1374B
Multiply by 2, divide by 6
math
900
x47210
1374A
Required Remainder
math
800
x51819
1373B
01 Game
games
900
x33785
1373A
Donut Shops
greedy
,
implementation
,
math
1000
x26246
1372A
Omkar and Completion
constructive algorithms
,
implementation
800
x31657
1371A
Magical Sticks
math
800
x44931
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x49960
1369A
FashionabLee
geometry
,
math
800
x35937
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x37608
1367B
Even Array
greedy
,
math
800
x51354
1367A
Short Substrings
implementation
,
strings
800
x55753
1362A
Johnny and Ancient Computer
implementation
1000
x23018
1360B
Honest Coach
greedy
,
sortings
800
x46750
1360A
Minimal Square
greedy
,
math
800
x48881
1359B
New Theatre Square
brute force
,
dp
,
greedy
,
implementation
,
two pointers
1000
x27297
1359A
Berland Poker
brute force
,
greedy
,
math
1000
x29045
1358B
Maria Breaks the Self-isolation
greedy
,
sortings
1000
x24746
1358A
Park Lighting
greedy
,
math
800
x38573
1354A
Alarm Clock
math
900
x23463
1353C
Board Moves
math
1000
x34601
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x48223
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x39665
1352A
Sum of Round Numbers
implementation
,
math
800
x74446
1351B
Square?
brute force
,
implementation
,
math
900
x16620
1351A
A+B (Trial Problem)
implementation
800
x23179
1350A
Orac and Factors
math
900
x25758
1348A
Phoenix and Balance
greedy
,
math
800
x38840
1346A
Color Revolution
*special problem
,
math
1000
x1955
1345A
Puzzle Pieces
math
800
x23913
1343B
Balanced Array
constructive algorithms
,
math
800
x54917
1343A
Candies
brute force
,
math
900
x46976
1342A
Road To Zero
greedy
,
math
1000
x39122
1341A
Nastya and Rice
math
900
x28684
1339A
Filling Diamonds
brute force
,
dp
,
implementation
,
math
900
x31498
1337B
Kana and Dragon Quest game
greedy
,
implementation
,
math
900
x33604
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x36955
1335B
Construct the String
constructive algorithms
900
x37628
1335A
Candies and Two Sisters
math
800
x80680
1333A
Little Artem
constructive algorithms
1000
x24405
1330A
Dreamoon and Ranking Collection
implementation
900
x18593
1328A
Divisibility Problem
math
800
x96045
1326B
Maximums
implementation
,
math
900
x23807
1326A
Bad Ugly Numbers
constructive algorithms
,
number theory
1000
x29862
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x35322
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x38885
1324A
Yet Another Tetris Problem
implementation
,
number theory
900
x25664
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x19590
1321A
Contest for Robots
greedy
900
x14206
1316A
Grade Allocation
implementation
800
x18573
1315A
Dead Pixel
implementation
800
x11975
1313A
Fast Food Restaurant
brute force
,
greedy
,
implementation
900
x15386
1312B
Bogosort
constructive algorithms
,
sortings
1000
x25458
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x25589
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x41190
1307A
Cow and Haybales
greedy
,
implementation
800
x14886
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x13952
1304A
Two Rabbits
math
800
x25228
1303A
Erasing Zeroes
implementation
,
strings
800
x31245
1301A
Three Strings
implementation
,
strings
800
x19230
1300B
Assigning to Classes
greedy
,
implementation
,
sortings
1000
x22749
1300A
Non-zero
implementation
,
math
800
x20888
1296B
Food Buying
math
900
x29771
1296A
Array with Odd Sum
math
800
x40364
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