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Custom test
Problems
#
Name
441C
Valera and Tubes
constructive algorithms
,
dfs and similar
,
implementation
1500
x12138
441B
Valera and Fruits
greedy
,
implementation
1400
x7615
441A
Valera and Antique Items
implementation
1000
x19569
440D
Berland Federalization
dp
,
trees
2200
x1062
440C
One-Based Arithmetic
brute force
,
dfs and similar
,
divide and conquer
1800
x1159
440B
Balancer
greedy
,
implementation
1600
x2368
440A
Forgotten Episode
implementation
800
x9235
439E
Devu and Birthday Celebration
combinatorics
,
dp
,
math
2100
x1956
439D
Devu and his Brother
binary search
,
sortings
,
ternary search
,
two pointers
1700
x7437
439C
Devu and Partitioning of the Array
brute force
,
constructive algorithms
,
implementation
,
number theory
1700
x4230
439B
Devu, the Dumb Guy
implementation
,
sortings
1200
x15140
439A
Devu, the Singer and Churu, the Joker
greedy
,
implementation
900
x26865
438E
The Child and Binary Tree
combinatorics
,
divide and conquer
,
fft
,
number theory
3100
x2417
438D
The Child and Sequence
data structures
,
math
2300
x13054
437E
The Child and Polygon
dp
,
geometry
2500
x878
437D
The Child and Zoo
dsu
,
sortings
1900
x3793
437C
The Child and Toy
graphs
,
greedy
,
sortings
1400
x15261
437B
The Child and Set
bitmasks
,
greedy
,
implementation
,
sortings
1500
x10640
437A
The Child and Homework
implementation
1300
x9515
436F
Banners
brute force
,
data structures
,
dp
3000
x617
436E
Cardboard Box
data structures
,
greedy
2600
x2185
436D
Pudding Monsters
dp
2800
x377
436C
Dungeons and Candies
dsu
,
graphs
,
greedy
,
trees
1800
x2979
436B
Om Nom and Spiders
implementation
,
math
1400
x3189
436A
Feed with Candy
greedy
1500
x3829
435E
Special Graph
2500
x292
435D
Special Grid
brute force
,
dp
,
greedy
2000
x864
435C
Cardiogram
implementation
1600
x2763
435B
Pasha Maximizes
greedy
1400
x7703
435A
Queue on Bus Stop
implementation
1000
x11423
434E
Furukawa Nagisa's Tree
binary search
,
divide and conquer
,
sortings
,
trees
3000
x555
434D
Nanami's Power Plant
flows
2900
x619
433E
Tachibana Kanade's Tofu
dp
2500
x589
433D
Nanami's Digital Board
dsu
,
implementation
2000
x1350
433C
Ryouko's Memory Note
implementation
,
math
,
sortings
1800
x2653
433B
Kuriyama Mirai's Stones
dp
,
implementation
,
sortings
1200
x60075
433A
Kitahara Haruki's Gift
brute force
,
implementation
1100
x18278
432E
Square Tiling
constructive algorithms
,
greedy
2300
x832
432D
Prefixes and Suffixes
dp
,
string suffix structures
,
strings
,
two pointers
2000
x13235
432C
Prime Swaps
greedy
,
sortings
1800
x2714
432B
Football Kit
brute force
,
greedy
,
implementation
1200
x12381
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x72070
431E
Chemistry Experiment
binary search
,
data structures
,
ternary search
2200
x1253
431D
Random Task
binary search
,
bitmasks
,
combinatorics
,
dp
,
math
2100
x3013
431C
k-Tree
dp
,
implementation
,
trees
1600
x31369
431B
Shower Line
brute force
,
implementation
1200
x11964
431A
Black Square
implementation
800
x69311
430B
Balls Game
brute force
,
two pointers
1400
x4182
430A
Points and Segments (easy)
constructive algorithms
,
sortings
1600
x2443
429E
Points and Segments
graphs
3000
x1070
429D
Tricky Function
data structures
,
divide and conquer
,
geometry
2200
x3334
429C
Guess the Tree
bitmasks
,
constructive algorithms
,
dp
,
greedy
,
trees
2300
x1069
429B
Working out
dp
1600
x10705
429A
Xor-tree
dfs and similar
,
trees
1300
x12659
427E
Police Patrol
greedy
,
implementation
,
math
,
ternary search
2000
x1711
427D
Match & Catch
dp
,
string suffix structures
,
strings
2200
x2818
427C
Checkposts
dfs and similar
,
graphs
,
two pointers
1700
x18373
427B
Prison Transfer
data structures
,
implementation
1100
x15779
427A
Police Recruits
implementation
800
x102956
426B
Sereja and Mirroring
implementation
1300
x3998
426A
Sereja and Mugs
implementation
800
x10206
425E
Sereja and Sets
dp
2500
x858
425D
Sereja and Squares
binary search
,
data structures
,
hashing
2300
x1704
425C
Sereja and Two Sequences
data structures
,
dp
2300
x1030
425B
Sereja and Table
bitmasks
,
greedy
2200
x1457
425A
Sereja and Swaps
brute force
,
sortings
1500
x4277
424E
Colored Jenga
dfs and similar
,
dp
,
probabilities
2500
x154
424D
Biathlon Track
binary search
,
brute force
,
constructive algorithms
,
data structures
,
dp
2300
x646
424C
Magic Formulas
math
1600
x6072
424B
Megacity
binary search
,
greedy
,
implementation
,
sortings
1200
x8589
424A
Squats
implementation
900
x9454
421D
Bug in Code
binary search
,
data structures
,
sortings
1900
x737
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x7108
420E
Playing the ball
geometry
2600
x331
420D
Cup Trick
data structures
2200
x1052
420C
Bug in Code
data structures
,
graphs
,
implementation
,
two pointers
1900
x1453
420B
Online Meeting
implementation
1800
x1182
420A
Start Up
implementation
1000
x7397
418E
Tricky Password
data structures
3100
x478
418D
Big Problems for Organizers
data structures
,
graphs
,
trees
2800
x595
417E
Square Table
constructive algorithms
,
math
,
probabilities
2400
x1012
417D
Cunning Gena
bitmasks
,
dp
,
greedy
,
sortings
1900
x3069
417C
Football
constructive algorithms
,
graphs
,
implementation
1400
x5154
417B
Crash
implementation
1400
x2056
417A
Elimination
dp
,
implementation
,
math
1500
x3475
416E
President's Path
dp
,
graphs
,
shortest paths
2500
x1943
416D
Population Size
greedy
,
implementation
,
math
2400
x1180
416C
Booking System
binary search
,
dp
,
greedy
,
implementation
1600
x8901
416B
Art Union
brute force
,
dp
,
implementation
1300
x9592
416A
Guess a number!
greedy
,
implementation
,
two pointers
1400
x10259
415B
Mashmokh and Tokens
binary search
,
greedy
,
implementation
,
math
1500
x6778
415A
Mashmokh and Lights
implementation
900
x9733
414E
Mashmokh's Designed Problem
data structures
3200
x270
414D
Mashmokh and Water Tanks
binary search
,
data structures
,
greedy
,
trees
,
two pointers
2300
x788
414C
Mashmokh and Reverse Operation
combinatorics
,
divide and conquer
2100
x2439
414B
Mashmokh and ACM
combinatorics
,
dp
,
number theory
1400
x31620
414A
Mashmokh and Numbers
constructive algorithms
,
number theory
1500
x10669
413E
Maze 2D
data structures
,
divide and conquer
2200
x886
413D
2048
bitmasks
,
dp
2000
x953
413C
Jeopardy!
greedy
,
math
1400
x2722
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