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Custom test
Problems
#
Name
436D
Pudding Monsters
dp
2800
x320
436C
Dungeons and Candies
dsu
,
graphs
,
greedy
,
trees
1800
x2584
436B
Om Nom and Spiders
implementation
,
math
1400
x3045
436A
Feed with Candy
greedy
1500
x3411
435E
Special Graph
2500
x235
435D
Special Grid
brute force
,
dp
,
greedy
2000
x748
435C
Cardiogram
implementation
1600
x2545
435B
Pasha Maximizes
greedy
1400
x6793
435A
Queue on Bus Stop
implementation
1000
x10010
434E
Furukawa Nagisa's Tree
binary search
,
divide and conquer
,
sortings
,
trees
3000
x255
434D
Nanami's Power Plant
flows
2900
x401
433E
Tachibana Kanade's Tofu
dp
2500
x474
433D
Nanami's Digital Board
dsu
,
implementation
2000
x1038
433C
Ryouko's Memory Note
implementation
,
math
,
sortings
1800
x2402
433B
Kuriyama Mirai's Stones
dp
,
implementation
,
sortings
1200
x36865
433A
Kitahara Haruki's Gift
brute force
,
implementation
1100
x15865
432E
Square Tiling
constructive algorithms
,
greedy
2300
x664
432D
Prefixes and Suffixes
dp
,
string suffix structures
,
strings
,
two pointers
2000
x8429
432C
Prime Swaps
greedy
,
sortings
1800
x2444
432B
Football Kit
brute force
,
greedy
,
implementation
1200
x11527
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x57219
431E
Chemistry Experiment
binary search
,
data structures
,
ternary search
2200
x908
431D
Random Task
binary search
,
bitmasks
,
combinatorics
,
dp
,
math
2100
x2147
431C
k-Tree
dp
,
implementation
,
trees
1600
x24779
431B
Shower Line
brute force
,
implementation
1200
x10543
431A
Black Square
implementation
800
x52141
430B
Balls Game
brute force
,
two pointers
1400
x3645
430A
Points and Segments (easy)
constructive algorithms
,
sortings
1600
x2224
429E
Points and Segments
graphs
3000
x839
429D
Tricky Function
data structures
,
divide and conquer
,
geometry
2200
x2611
429C
Guess the Tree
bitmasks
,
constructive algorithms
,
dp
,
greedy
,
trees
2300
x907
429B
Working out
dp
1600
x8338
429A
Xor-tree
dfs and similar
,
trees
1300
x10044
427E
Police Patrol
greedy
,
implementation
,
math
,
ternary search
2000
x1399
427D
Match & Catch
dp
,
string suffix structures
,
strings
2200
x2107
427C
Checkposts
dfs and similar
,
graphs
,
two pointers
1700
x13255
427B
Prison Transfer
data structures
,
implementation
1100
x13752
427A
Police Recruits
implementation
800
x73507
426B
Sereja and Mirroring
implementation
1300
x3774
426A
Sereja and Mugs
implementation
800
x9049
425E
Sereja and Sets
dp
2500
x550
425D
Sereja and Squares
binary search
,
data structures
,
hashing
2300
x1406
425C
Sereja and Two Sequences
data structures
,
dp
2300
x884
425B
Sereja and Table
bitmasks
,
greedy
2200
x1283
425A
Sereja and Swaps
brute force
,
sortings
1500
x3815
424E
Colored Jenga
dfs and similar
,
dp
,
probabilities
2500
x129
424D
Biathlon Track
binary search
,
brute force
,
constructive algorithms
,
data structures
,
dp
2300
x558
424C
Magic Formulas
math
1600
x5235
424B
Megacity
binary search
,
greedy
,
implementation
,
sortings
1200
x7375
424A
Squats
implementation
900
x8239
421D
Bug in Code
binary search
,
data structures
,
sortings
1900
x501
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x5801
420E
Playing the ball
geometry
2600
x214
420D
Cup Trick
data structures
2200
x778
420C
Bug in Code
data structures
,
graphs
,
implementation
,
two pointers
1900
x1225
420B
Online Meeting
implementation
1800
x1011
420A
Start Up
implementation
1000
x5911
418E
Tricky Password
data structures
3100
x298
418D
Big Problems for Organizers
data structures
,
graphs
,
trees
2800
x470
417E
Square Table
constructive algorithms
,
math
,
probabilities
2400
x784
417D
Cunning Gena
bitmasks
,
dp
,
greedy
,
sortings
1900
x2382
417C
Football
constructive algorithms
,
graphs
,
implementation
1400
x4620
417B
Crash
implementation
1400
x1757
417A
Elimination
dp
,
implementation
,
math
1500
x2899
416E
President's Path
dp
,
graphs
,
shortest paths
2500
x1395
416D
Population Size
greedy
,
implementation
,
math
2400
x907
416C
Booking System
binary search
,
dp
,
greedy
,
implementation
1600
x7689
416B
Art Union
brute force
,
dp
,
implementation
1300
x8550
416A
Guess a number!
greedy
,
implementation
,
two pointers
1400
x8693
415B
Mashmokh and Tokens
binary search
,
greedy
,
implementation
,
math
1500
x6138
415A
Mashmokh and Lights
implementation
900
x8819
414E
Mashmokh's Designed Problem
data structures
3200
x192
414D
Mashmokh and Water Tanks
binary search
,
data structures
,
greedy
,
trees
,
two pointers
2300
x675
414C
Mashmokh and Reverse Operation
combinatorics
,
divide and conquer
2100
x2183
414B
Mashmokh and ACM
combinatorics
,
dp
,
number theory
1400
x21139
414A
Mashmokh and Numbers
constructive algorithms
,
number theory
1500
x9668
413E
Maze 2D
data structures
,
divide and conquer
2200
x672
413D
2048
bitmasks
,
dp
2000
x751
413C
Jeopardy!
greedy
,
math
1400
x2310
413B
Spyke Chatting
implementation
1300
x1681
413A
Data Recovery
implementation
1200
x2548
412E
E-mail Addresses
implementation
1900
x810
412D
Giving Awards
dfs and similar
2000
x1821
412C
Pattern
implementation
,
strings
1200
x3862
412B
Network Configuration
greedy
,
sortings
900
x5305
412A
Poster
greedy
,
implementation
900
x4327
411C
Kicker
implementation
1700
x1078
411B
Multi-core Processor
implementation
1600
x1255
411A
Password Check
*special problem
,
implementation
800
x7058
409I
Feed the Golorp
*special problem
2400
x117
409H
A + B Strikes Back
*special problem
,
brute force
,
constructive algorithms
,
dsu
,
implementation
1500
x8718
409G
On a plane
*special problem
,
geometry
2200
x504
409F
000001
*special problem
1900
x2046
409E
Dome
*special problem
1800
x563
409D
Big Data
*special problem
1700
x1698
409C
Magnum Opus
*special problem
1700
x1948
409B
Mysterious Language
*special problem
1700
x1344
409A
The Great Game
*special problem
1700
x2438
408B
Garland
implementation
1200
x8945
408A
Line to Cashier
implementation
900
x11046
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2-sat
binary search
bitmasks
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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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