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Custom test
Problems
#
Name
417B
Crash
implementation
1400
x1749
1176F
Destroy it!
dp
,
implementation
,
sortings
2100
x1748
77A
Heroes
brute force
,
implementation
1400
x1746
75D
Big Maximum Sum
data structures
,
dp
,
greedy
,
implementation
,
math
,
trees
2000
x1740
1811F
Is It Flower?
dfs and similar
,
graphs
,
implementation
2100
x1736
31C
Schedule
implementation
1700
x1728
1505E
Cakewalk
*special problem
,
greedy
,
implementation
,
shortest paths
1800
x1724
551D
GukiZ and Binary Operations
combinatorics
,
implementation
,
math
,
matrices
,
number theory
2100
x1724
886D
Restoration of string
constructive algorithms
,
graphs
,
implementation
2000
x1722
10B
Cinema Cashier
dp
,
implementation
1500
x1722
24B
F1 Champions
implementation
1500
x1715
1621E
New School
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
sortings
2300
x1714
909D
Colorful Points
data structures
,
greedy
,
implementation
2100
x1711
746E
Numbers Exchange
greedy
,
implementation
,
math
1900
x1709
1617D2
Too Many Impostors (hard version)
constructive algorithms
,
implementation
,
interactive
,
math
2400
x1708
391A
Genetic Engineering
implementation
,
two pointers
x1702
1662D
Evolution of Weasels
greedy
,
implementation
,
strings
x1694
507D
The Maths Lecture
dp
,
implementation
2200
x1693
960D
Full Binary Tree Queries
brute force
,
implementation
,
trees
2100
x1680
413B
Spyke Chatting
implementation
1300
x1679
1580C
Train Maintenance
brute force
,
data structures
,
implementation
2200
x1678
1439C
Greedy Shopping
binary search
,
data structures
,
divide and conquer
,
greedy
,
implementation
2600
x1678
910B
Door Frames
greedy
,
implementation
1600
x1676
1917D
Yet Another Inversions Problem
combinatorics
,
data structures
,
dp
,
implementation
,
math
,
number theory
2300
x1667
291C
Network Mask
*special problem
,
bitmasks
,
brute force
,
implementation
1600
x1665
76E
Points
implementation
,
math
1700
x1660
362C
Insertion Sort
data structures
,
dp
,
implementation
,
math
1900
x1655
551E
GukiZ and GukiZiana
binary search
,
data structures
,
implementation
2500
x1651
1236D
Alice and the Doll
brute force
,
data structures
,
greedy
,
implementation
2300
x1648
95A
Hockey
implementation
,
strings
1600
x1643
1217E
Sum Queries?
data structures
,
greedy
,
implementation
,
math
2300
x1642
958A1
Death Stars (easy)
implementation
1400
x1636
63C
Bulls and Cows
brute force
,
implementation
1700
x1632
656B
Scrambled
*special problem
,
implementation
1700
x1630
1610E
AmShZ and G.O.A.T.
binary search
,
brute force
,
greedy
,
implementation
,
math
2300
x1629
1861E
Non-Intersecting Subpermutations
combinatorics
,
dp
,
implementation
,
math
2300
x1628
653C
Bear and Up-Down
brute force
,
implementation
1900
x1623
819B
Mister B and PR Shifts
data structures
,
implementation
,
math
1900
x1622
1120A
Diana and Liana
greedy
,
implementation
,
two pointers
1900
x1619
662D
International Olympiad
constructive algorithms
,
greedy
,
implementation
,
math
2000
x1616
1910A
Username
*special problem
,
implementation
1100
x1611
703C
Chris and Road
geometry
,
implementation
2100
x1607
992D
Nastya and a Game
brute force
,
implementation
,
math
2100
x1597
958F1
Lightsabers (easy)
implementation
1500
x1587
84C
Biathlon
binary search
,
implementation
1700
x1587
1789D
Serval and Shift-Shift-Shift
bitmasks
,
brute force
,
constructive algorithms
,
implementation
2200
x1580
770D
Draw Brackets!
*special problem
,
implementation
1400
x1568
883H
Palindromic Cut
brute force
,
implementation
,
strings
1800
x1567
1918E
ace5 and Task Order
constructive algorithms
,
divide and conquer
,
implementation
,
interactive
,
probabilities
,
sortings
2200
x1566
490E
Restoring Increasing Sequence
binary search
,
brute force
,
greedy
,
implementation
2000
x1552
730A
Toda 2
greedy
,
implementation
1800
x1551
317B
Ants
brute force
,
implementation
2000
x1547
520D
Cubes
games
,
greedy
,
implementation
2100
x1533
1634F
Fibonacci Additions
brute force
,
data structures
,
hashing
,
implementation
,
math
2700
x1529
1329C
Drazil Likes Heap
constructive algorithms
,
data structures
,
greedy
,
implementation
2400
x1527
130A
Hexagonal numbers
*special problem
,
implementation
900
x1523
5D
Follow Traffic Rules
implementation
,
math
2100
x1522
1080D
Olya and magical square
constructive algorithms
,
implementation
,
math
2000
x1521
290C
WTF?
*special problem
,
graph matchings
,
implementation
,
trees
1700
x1518
234D
Cinema
implementation
1600
x1515
16D
Logging
implementation
,
strings
1900
x1513
837E
Vasya's Function
binary search
,
implementation
,
math
2100
x1512
285D
Permutation Sum
bitmasks
,
combinatorics
,
dp
,
implementation
,
meet-in-the-middle
1900
x1511
1926F
Vlad and Avoiding X
bitmasks
,
brute force
,
dfs and similar
,
dp
,
implementation
2200
x1508
1826E
Walk the Runway
bitmasks
,
brute force
,
data structures
,
dp
,
graphs
,
implementation
,
sortings
2400
x1508
995A
Tesla
constructive algorithms
,
implementation
2100
x1504
847I
Noise Level
dfs and similar
,
implementation
,
math
1900
x1504
39F
Pacifist frogs
implementation
1300
x1497
847K
Travel Cards
greedy
,
implementation
,
sortings
1800
x1495
140B
New Year Cards
brute force
,
greedy
,
implementation
1800
x1478
452D
Washer, Dryer, Folder
greedy
,
implementation
1900
x1474
1463E
Plan of Lectures
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
implementation
,
sortings
,
trees
2400
x1456
234G
Practice
constructive algorithms
,
divide and conquer
,
implementation
1600
x1456
1174F
Ehab and the Big Finale
constructive algorithms
,
divide and conquer
,
graphs
,
implementation
,
interactive
,
trees
2400
x1454
1594E2
Rubik's Cube Coloring (hard version)
brute force
,
dp
,
implementation
,
math
,
trees
2300
x1448
448E
Divisors
brute force
,
dfs and similar
,
implementation
,
number theory
2200
x1446
1531A
Зингер | color
*special problem
,
implementation
x1443
723F
st-Spanning Tree
dsu
,
graphs
,
greedy
,
implementation
2300
x1440
1455E
Four Points
brute force
,
constructive algorithms
,
flows
,
geometry
,
greedy
,
implementation
,
math
,
ternary search
2400
x1436
1665E
MinimizOR
bitmasks
,
brute force
,
data structures
,
divide and conquer
,
greedy
,
implementation
,
two pointers
2500
x1428
36B
Fractal
implementation
1600
x1427
552E
Vanya and Brackets
brute force
,
dp
,
expression parsing
,
greedy
,
implementation
,
strings
2100
x1410
1606D
Red-Blue Matrix
brute force
,
constructive algorithms
,
implementation
,
sortings
2400
x1402
203D
Hit Ball
geometry
,
implementation
,
math
1700
x1400
1819C
The Fox and the Complete Tree Traversal
constructive algorithms
,
dp
,
implementation
,
math
,
trees
2400
x1398
427E
Police Patrol
greedy
,
implementation
,
math
,
ternary search
2000
x1396
524A
Возможно, вы знаете этих людей?
implementation
1600
x1393
1004D
Sonya and Matrix
brute force
,
constructive algorithms
,
implementation
2300
x1391
1381C
Mastermind
constructive algorithms
,
graph matchings
,
greedy
,
implementation
,
sortings
,
two pointers
2500
x1390
1650F
Vitaly and Advanced Useless Algorithms
dp
,
greedy
,
implementation
2200
x1386
550E
Brackets in Implications
constructive algorithms
,
greedy
,
implementation
,
math
2200
x1376
175B
Plane of Tanks: Pro
implementation
1400
x1372
908F
New Year and Rainbow Roads
graphs
,
greedy
,
implementation
2400
x1370
53B
Blog Photo
binary search
,
implementation
1700
x1367
1244F
Chips
constructive algorithms
,
implementation
2300
x1363
239B
Easy Tape Programming
brute force
,
implementation
1500
x1359
1623D
Robot Cleaner Revisit
implementation
,
math
,
probabilities
2300
x1352
331A1
Oh Sweet Beaverette
brute force
,
implementation
1400
x1337
303B
Rectangle Puzzle II
implementation
,
math
1700
x1330
1385G
Columns Swaps
2-sat
,
dfs and similar
,
dsu
,
graphs
,
implementation
2300
x1327
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implementation
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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