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Custom test
Problems
#
Name
241B
Friends
binary search
,
bitmasks
,
data structures
,
math
2700
x1066
241A
Old Peykan
greedy
1300
x2459
240F
TorCoder
data structures
2600
x2387
240E
Road Repairs
dfs and similar
,
graphs
,
greedy
2800
x448
239B
Easy Tape Programming
brute force
,
implementation
1500
x1507
239A
Two Bags of Potatoes
greedy
,
implementation
,
math
1200
x21066
238E
Meeting Her
dp
,
graphs
,
shortest paths
2600
x534
238D
Tape Programming
data structures
,
implementation
2900
x283
238C
World Eater Brothers
dfs and similar
,
dp
,
greedy
,
trees
2100
x1423
238B
Boring Partition
constructive algorithms
1800
x1437
238A
Not Wool Sequences
constructive algorithms
,
math
1300
x2223
237E
Build String
flows
,
graphs
2000
x2110
237D
T-decomposition
dfs and similar
,
graphs
,
greedy
,
trees
2000
x656
237C
Primes on Interval
binary search
,
number theory
,
two pointers
1600
x6970
237B
Young Table
implementation
,
sortings
1500
x2398
237A
Free Cash
implementation
1000
x30223
236B
Easy Number Challenge
implementation
,
number theory
1300
x17976
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x303943
235E
Number Challenge
combinatorics
,
dp
,
implementation
,
math
,
number theory
2600
x1009
235D
Graph Game
graphs
3000
x731
235C
Cyclical Quest
data structures
,
string suffix structures
,
strings
2700
x2663
235B
Let's Play Osu!
dp
,
math
,
probabilities
2000
x4648
235A
LCM Challenge
number theory
1600
x22031
234H
Merging Two Decks
constructive algorithms
,
greedy
2000
x631
234G
Practice
constructive algorithms
,
divide and conquer
,
implementation
1600
x1612
234F
Fence
dp
1800
x2053
234E
Champions' League
implementation
1600
x1065
234D
Cinema
implementation
1600
x1617
234C
Weather
dp
,
implementation
1300
x6133
234B
Reading
sortings
1000
x7830
234A
Lefthanders and Righthanders
implementation
1200
x4757
233B
Non-square Equation
binary search
,
brute force
,
math
1400
x8453
233A
Perfect Permutation
implementation
,
math
800
x50733
232E
Quick Tortoise
bitmasks
,
divide and conquer
,
dp
3000
x1047
232D
Fence
binary search
,
data structures
,
string suffix structures
2900
x588
232C
Doe Graphs
constructive algorithms
,
divide and conquer
,
dp
,
graphs
,
shortest paths
2600
x346
232B
Table
bitmasks
,
combinatorics
,
dp
,
math
1900
x1711
232A
Cycles
binary search
,
constructive algorithms
,
graphs
,
greedy
1600
x2892
231E
Cactus
data structures
,
dfs and similar
,
dp
,
graphs
,
trees
2100
x2454
231D
Magic Box
brute force
,
geometry
1600
x4398
231C
To Add or Not to Add
binary search
,
sortings
,
two pointers
1600
x10086
231B
Magic, Wizardry and Wonders
constructive algorithms
,
greedy
1500
x4036
231A
Team
brute force
,
greedy
800
x467238
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x103290
230A
Dragons
greedy
,
sortings
1000
x105830
229E
Gifts
combinatorics
,
dp
,
math
,
probabilities
2600
x630
229D
Towers
dp
,
greedy
,
two pointers
2100
x2733
229C
Triangles
combinatorics
,
graphs
,
math
1900
x1875
229B
Planets
binary search
,
data structures
,
graphs
,
shortest paths
1700
x6151
229A
Shifts
brute force
,
two pointers
1500
x3834
228E
The Road to Berland is Paved With Good Intentions
2-sat
,
dfs and similar
,
dsu
,
graphs
1900
x2921
228D
Zigzag
data structures
2100
x470
228C
Fractal Detector
dp
,
hashing
2000
x567
228B
Two Tables
brute force
,
implementation
1400
x3677
228A
Is your horseshoe on the other hoof?
implementation
800
x149143
227B
Effective Approach
implementation
1100
x33691
227A
Where do I Turn?
geometry
1300
x4773
226E
Noble Knight's Path
data structures
,
trees
2900
x680
226D
The table
constructive algorithms
,
greedy
2100
x1201
226C
Anniversary
data structures
,
implementation
,
math
,
matrices
,
number theory
2400
x1057
226B
Naughty Stone Piles
greedy
1900
x1735
226A
Flying Saucer Segments
math
1400
x4430
225E
Unsolvable
math
,
number theory
2100
x937
225D
Snake
bitmasks
,
dfs and similar
,
graphs
,
implementation
2200
x1084
225C
Barcode
dp
,
matrices
1700
x10439
225B
Well-known Numbers
binary search
,
greedy
,
number theory
1600
x3445
225A
Dice Tower
constructive algorithms
,
greedy
1100
x14962
224B
Array
bitmasks
,
implementation
,
two pointers
1500
x8262
224A
Parallelepiped
brute force
,
geometry
,
math
1100
x31293
223E
Planar Graph
flows
,
geometry
,
graphs
3000
x291
223D
Spider
geometry
,
graphs
3000
x95
223C
Partial Sums
combinatorics
,
math
,
number theory
1900
x1787
223B
Two Strings
data structures
,
dp
,
strings
1900
x2052
223A
Bracket Sequence
data structures
,
expression parsing
,
implementation
1700
x2988
222E
Decoding Genome
dp
,
matrices
1900
x3836
222D
Olympiad
binary search
,
greedy
,
sortings
,
two pointers
1900
x2368
222C
Reducing Fractions
implementation
,
math
,
number theory
,
sortings
1800
x3137
222B
Cosmic Tables
data structures
,
implementation
1300
x6671
222A
Shooshuns and Sequence
brute force
,
implementation
1200
x12105
221B
Little Elephant and Numbers
implementation
1300
x5046
221A
Little Elephant and Function
implementation
,
math
1000
x17148
220E
Little Elephant and Inversions
data structures
,
two pointers
2400
x1833
220D
Little Elephant and Triangle
geometry
,
math
2500
x366
220C
Little Elephant and Shifts
data structures
2100
x1073
220B
Little Elephant and Array
constructive algorithms
,
data structures
1800
x13898
220A
Little Elephant and Problem
implementation
,
sortings
1300
x13480
219E
Parking Lot
data structures
2200
x735
219D
Choosing Capital for Treeland
dfs and similar
,
dp
,
graphs
,
trees
1700
x13743
219C
Color Stripe
brute force
,
dp
,
greedy
1600
x7338
219B
Special Offer! Super Price 999 Bourles!
implementation
1400
x6229
219A
k-String
implementation
,
strings
1000
x33531
218B
Airport
implementation
1100
x18879
218A
Mountain Scenery
brute force
,
constructive algorithms
,
implementation
1100
x10808
217E
Alien DNA
data structures
,
dsu
,
trees
2800
x368
217D
Bitonix' Patrol
bitmasks
,
brute force
,
combinatorics
,
dfs and similar
,
math
2900
x285
217C
Formurosa
divide and conquer
,
dp
,
expression parsing
2600
x414
217B
Blackboard Fibonacci
brute force
,
math
2100
x1288
217A
Ice Skating
brute force
,
dfs and similar
,
dsu
,
graphs
1200
x26156
216E
Martian Luck
math
,
number theory
2000
x724
216D
Spider's Web
binary search
,
sortings
,
two pointers
1700
x1513
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