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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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Status
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Custom test
Problems
#
Name
774G
Perfectionist Arkadiy
*special problem
,
number theory
2700
x173
774F
Pens And Days Of Week
*special problem
,
binary search
,
number theory
2700
x104
774E
Big Number and Remainder
*special problem
,
math
,
number theory
2300
x206
774D
Lie or Truth
*special problem
,
constructive algorithms
,
implementation
,
sortings
1500
x1904
774C
Maximum Number
*special problem
,
constructive algorithms
,
greedy
,
implementation
1200
x4025
774B
Significant Cups
*special problem
,
binary search
,
data structures
,
two pointers
2100
x216
774A
Amusement Park
*special problem
,
ternary search
2100
x294
773F
Test Data Generation
combinatorics
,
divide and conquer
,
dp
,
fft
,
math
,
number theory
3400
x184
773E
Blog Post Rating
data structures
,
sortings
3000
x316
773D
Perishable Roads
dp
,
graphs
,
shortest paths
2700
x564
773C
Prairie Partition
binary search
,
constructive algorithms
,
greedy
,
math
2200
x937
773B
Dynamic Problem Scoring
brute force
,
greedy
2000
x1143
773A
Success Rate
binary search
,
math
1700
x4367
772E
Verifying Kingdom
binary search
,
divide and conquer
,
interactive
,
trees
3200
x122
772D
Varying Kibibits
bitmasks
,
dp
2700
x568
772C
Vulnerable Kerbals
constructive algorithms
,
dp
,
graphs
,
math
,
number theory
2300
x1184
772B
Volatile Kite
geometry
1800
x3092
772A
Voltage Keepsake
binary search
,
math
1800
x4077
771F
Bear and Isomorphic Points
geometry
,
two pointers
3300
x78
771E
Bear and Rectangle Strips
dp
,
greedy
3000
x441
771D
Bear and Company
dp
2500
x1103
771C
Bear and Tree Jumps
dfs and similar
,
dp
,
trees
2100
x2791
771B
Bear and Different Names
constructive algorithms
,
greedy
1500
x6629
771A
Bear and Friendship Condition
dfs and similar
,
dsu
,
graphs
1500
x14635
770D
Draw Brackets!
*special problem
,
implementation
1400
x1567
770C
Online Courses In BSU
*special problem
,
dfs and similar
,
graphs
,
implementation
1500
x2533
770B
Maximize Sum of Digits
*special problem
,
implementation
,
math
1300
x2724
770A
New Password
*special problem
,
implementation
800
x18755
769D
k-Interesting Pairs Of Integers
*special problem
,
bitmasks
,
brute force
,
meet-in-the-middle
1700
x2210
769C
Cycle In Maze
*special problem
,
dfs and similar
,
graphs
,
greedy
,
shortest paths
1700
x2110
769B
News About Credit
*special problem
,
greedy
,
two pointers
1200
x3235
769A
Year of University Entrance
*special problem
,
implementation
,
sortings
800
x5571
768G
The Winds of Winter
binary search
,
data structures
3300
x353
768F
Barrels and boxes
brute force
,
combinatorics
,
math
,
number theory
,
probabilities
2300
x998
768E
Game of Stones
bitmasks
,
dp
,
games
2100
x2641
768D
Jon and Orbs
dp
,
math
,
probabilities
2200
x2770
768C
Jon Snow and his Favourite Number
brute force
,
dp
,
implementation
,
sortings
1800
x3771
768B
Code For 1
constructive algorithms
,
dfs and similar
,
divide and conquer
1600
x5841
768A
Oath of the Night's Watch
constructive algorithms
,
sortings
900
x26160
767E
Change-free
greedy
2400
x945
767D
Cartons of milk
binary search
,
data structures
,
greedy
,
sortings
,
two pointers
2100
x2194
767C
Garland
dfs and similar
,
graphs
,
greedy
,
trees
2000
x3975
767B
The Queue
brute force
,
greedy
2100
x2109
767A
Snacktower
data structures
,
implementation
1100
x19274
766E
Mahmoud and a xor trip
bitmasks
,
constructive algorithms
,
data structures
,
dfs and similar
,
dp
,
math
,
trees
2100
x2821
766D
Mahmoud and a Dictionary
data structures
,
dfs and similar
,
dp
,
dsu
,
graphs
2000
x3264
766C
Mahmoud and a Message
brute force
,
dp
,
greedy
,
strings
1700
x4314
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x31131
766A
Mahmoud and Longest Uncommon Subsequence
constructive algorithms
,
strings
1000
x28924
765G
Math, math everywhere
brute force
,
dp
,
math
,
meet-in-the-middle
,
number theory
3200
x80
765F
Souvenirs
data structures
3100
x1847
765E
Tree Folding
dfs and similar
,
dp
,
greedy
,
implementation
,
trees
2200
x1246
765D
Artsem and Saunders
constructive algorithms
,
dsu
,
math
1700
x2442
765C
Table Tennis Game 2
math
1200
x6837
765B
Code obfuscation
greedy
,
implementation
,
strings
1100
x7023
765A
Neverending competitions
implementation
,
math
900
x8855
764B
Timofey and cubes
constructive algorithms
,
implementation
900
x11611
764A
Taymyr is calling you
brute force
,
implementation
,
math
800
x16038
763E
Timofey and our friends animals
data structures
,
divide and conquer
,
dsu
2900
x475
763D
Timofey and a flat tree
data structures
,
graphs
,
hashing
,
shortest paths
,
trees
2900
x514
763C
Timofey and remoduling
brute force
,
implementation
,
math
,
number theory
2600
x704
763B
Timofey and rectangles
constructive algorithms
,
geometry
2100
x2576
763A
Timofey and a tree
dfs and similar
,
dp
,
dsu
,
graphs
,
implementation
,
trees
1600
x10113
762F
Tree nesting
combinatorics
,
graphs
,
trees
2800
x345
762E
Radio stations
binary search
,
data structures
2200
x1282
762D
Maximum path
dp
,
greedy
,
implementation
2300
x1289
762C
Two strings
binary search
,
hashing
,
strings
,
two pointers
2100
x2363
762B
USB vs. PS/2
greedy
,
implementation
,
sortings
,
two pointers
1400
x7501
762A
k-th divisor
math
,
number theory
1400
x17960
761F
Dasha and Photos
brute force
,
data structures
,
dp
,
implementation
2600
x403
761E
Dasha and Puzzle
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
trees
2000
x1897
761D
Dasha and Very Difficult Problem
binary search
,
brute force
,
constructive algorithms
,
greedy
,
sortings
1700
x3942
761C
Dasha and Password
brute force
,
dp
,
implementation
1500
x5830
761B
Dasha and friends
brute force
,
implementation
,
math
1300
x6804
761A
Dasha and Stairs
brute force
,
constructive algorithms
,
implementation
,
math
1000
x14330
760B
Frodo and pillows
binary search
,
greedy
1500
x6076
760A
Petr and a calendar
implementation
,
math
800
x7738
758F
Geometrical Progression
brute force
,
math
,
number theory
2400
x620
758E
Broken Tree
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
2600
x443
758D
Ability To Convert
constructive algorithms
,
dp
,
greedy
,
math
,
strings
2000
x2686
758C
Unfair Poll
binary search
,
constructive algorithms
,
implementation
,
math
1700
x3822
758B
Blown Garland
brute force
,
implementation
,
number theory
1100
x10054
758A
Holiday Of Equality
implementation
,
math
800
x57349
757G
Can Bash Save the Day?
data structures
,
divide and conquer
,
graphs
,
trees
3400
x480
757F
Team Rocket Rises Again
data structures
,
graphs
,
shortest paths
2800
x1066
757E
Bash Plays with Functions
brute force
,
combinatorics
,
dp
,
number theory
2500
x1267
757D
Felicity's Big Secret Revealed
bitmasks
,
dp
2200
x1274
757C
Felicity is Coming!
data structures
,
hashing
,
sortings
,
strings
1900
x2306
757B
Bash's Big Day
greedy
,
math
,
number theory
1400
x9821
757A
Gotta Catch Em' All!
implementation
1000
x11086
756F
Long number
expression parsing
,
math
,
number theory
3400
x89
756E
Byteland coins
combinatorics
,
dp
,
math
3200
x152
756D
Bacterial Melee
brute force
,
combinatorics
,
dp
,
string suffix structures
2400
x975
756C
Nikita and stack
data structures
2200
x1278
756B
Travel Card
binary search
,
dp
1600
x3307
756A
Pavel and barbecue
constructive algorithms
,
dfs and similar
1700
x2957
755G
PolandBall and Many Other Balls
combinatorics
,
divide and conquer
,
dp
,
fft
,
math
,
number theory
3200
x858
755F
PolandBall and Gifts
bitmasks
,
dp
,
greedy
2600
x1271
755E
PolandBall and White-Red graph
constructive algorithms
,
graphs
,
shortest paths
2400
x812
755D
PolandBall and Polygon
data structures
2000
x2467
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