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Custom test
Problems
#
Name
413B
Spyke Chatting
implementation
1300
x1885
413A
Data Recovery
implementation
1200
x3073
412E
E-mail Addresses
implementation
1900
x956
412D
Giving Awards
dfs and similar
2000
x2561
412C
Pattern
implementation
,
strings
1200
x4303
412B
Network Configuration
greedy
,
sortings
900
x6619
412A
Poster
greedy
,
implementation
900
x5157
411C
Kicker
*special problem
,
implementation
1700
x1308
411B
Multi-core Processor
implementation
1600
x1434
411A
Password Check
*special problem
,
implementation
800
x8324
409I
Feed the Golorp
*special problem
2400
x172
409H
A + B Strikes Back
*special problem
,
brute force
,
constructive algorithms
,
dsu
,
implementation
1500
x9670
409G
On a plane
*special problem
,
geometry
2200
x581
409F
000001
*special problem
1900
x2194
409E
Dome
*special problem
1800
x626
409D
Big Data
*special problem
1700
x1819
409C
Magnum Opus
*special problem
1700
x2153
409B
Mysterious Language
*special problem
1700
x1439
409A
The Great Game
*special problem
1700
x2651
408B
Garland
implementation
1200
x10570
408A
Line to Cashier
implementation
900
x12202
407E
k-d-sequence
data structures
3100
x1396
407D
Largest Submatrix 3
dp
,
hashing
2700
x851
407C
Curious Array
brute force
,
combinatorics
,
implementation
,
math
2500
x1272
407B
Long Path
dp
,
implementation
1600
x7328
407A
Triangle
brute force
,
geometry
,
implementation
,
math
1600
x5235
406E
Hamming Triples
implementation
,
math
,
two pointers
2800
x409
406D
Hill Climbing
dfs and similar
,
geometry
,
trees
2200
x1343
405E
Graph Cutting
dfs and similar
,
graphs
2300
x1687
405D
Toy Sum
greedy
,
implementation
,
math
1700
x3311
405C
Unusual Product
implementation
,
math
1600
x4992
405B
Domino Effect
1100
x6175
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x133949
404E
Maze 1D
binary search
,
greedy
,
implementation
2200
x671
404D
Minesweeper 1D
dp
,
implementation
1900
x2522
404C
Restore Graph
dfs and similar
,
graphs
,
sortings
1800
x5933
404B
Marathon
implementation
,
math
1500
x3071
404A
Valera and X
implementation
1000
x26670
403E
Two Rooted Trees
data structures
,
implementation
,
trees
2900
x282
403D
Beautiful Pairs of Numbers
combinatorics
,
dp
2300
x1277
402E
Strictly Positive Matrix
graphs
,
math
2200
x2688
402D
Upgrading Array
dp
,
greedy
,
math
,
number theory
1800
x2829
402C
Searching for Graph
brute force
,
constructive algorithms
,
graphs
1500
x6482
402B
Trees in a Row
brute force
,
implementation
1400
x4033
402A
Nuts
greedy
,
math
1100
x4946
401D
Roman and Numbers
bitmasks
,
brute force
,
combinatorics
,
dp
,
number theory
2000
x4889
401C
Team
constructive algorithms
,
greedy
,
implementation
1400
x22192
401B
Sereja and Contests
greedy
,
implementation
,
math
1200
x4660
401A
Vanya and Cards
implementation
,
math
800
x17686
400E
Inna and Binary Logic
binary search
,
bitmasks
,
data structures
2100
x1083
400D
Dima and Bacteria
dsu
,
graphs
,
shortest paths
2000
x3325
400C
Inna and Huge Candy Matrix
implementation
,
math
1500
x3045
400B
Inna and New Matrix of Candies
brute force
,
implementation
,
schedules
1200
x8755
400A
Inna and Choose Options
implementation
1000
x6967
399B
Red and Blue Balls
x1928
399A
Pages
implementation
x4254
398E
Sorting Permutations
x126
398D
Instant Messanger
data structures
x1405
398C
Tree and Array
constructive algorithms
x228
398B
Painting The Wall
dp
,
probabilities
x1234
398A
Cards
constructive algorithms
,
implementation
x972
397B
On Corruption and Numbers
constructive algorithms
,
implementation
,
math
x839
397A
On Segment's Own Points
implementation
x2742
396E
On Iteration of One Well-Known Function
math
x168
396D
On Sum of Number of Inversions in Permutations
combinatorics
,
math
x469
396C
On Changing Tree
data structures
,
graphs
,
trees
x1916
396B
On Sum of Fractions
math
,
number theory
x1206
396A
On Number of Decompositions into Multipliers
combinatorics
,
math
,
number theory
x1663
394E
Lightbulb for Minister
geometry
x136
394D
Physical Education and Buns
brute force
,
implementation
,
math
x302
394C
Dominoes
constructive algorithms
,
greedy
x564
394B
Very Beautiful Number
math
x630
394A
Counting Sticks
brute force
,
implementation
x2745
393B
Three matrices
x2090
393A
Nineteen
x7054
392E
Deleting Substrings
x199
392D
Three Arrays
data structures
x250
392C
Yet Another Number Sequence
combinatorics
,
math
,
matrices
x699
392B
Tower of Hanoi
dp
x1075
392A
Blocked Points
math
x1014
391F3
Stock Trading
x124
391F2
Stock Trading
greedy
x127
391F1
Stock Trading
dp
x237
391E2
Three Trees
x193
391E1
Three Trees
x138
391D2
Supercollider
data structures
x223
391D1
Supercollider
brute force
x298
391C3
The Tournament
x184
391C2
The Tournament
greedy
x159
391C1
The Tournament
brute force
x217
391B
Word Folding
brute force
x450
391A
Genetic Engineering
implementation
,
two pointers
x1822
390E
Inna and Large Sweet Matrix
x280
390D
Inna and Sweet Matrix
constructive algorithms
x540
390C
Inna and Candy Boxes
data structures
x704
390B
Inna, Dima and Song
implementation
x1317
390A
Inna and Alarm Clock
implementation
x3786
389B
Fox and Cross
greedy
,
implementation
1100
x7401
389A
Fox and Number Game
greedy
,
math
1000
x15145
388E
Fox and Meteor Shower
geometry
3100
x264
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