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#
Name
1095C
Powers Of Two
bitmasks
,
greedy
1400
x15612
1095B
Array Stabilization
implementation
900
x21097
1095A
Repeating Cipher
implementation
800
x29271
1093G
Multidimensional Queries
bitmasks
,
data structures
2300
x1817
1093F
Vasya and Array
dp
2400
x969
1093E
Intersection of Permutations
data structures
2400
x1480
1093D
Beautiful Graph
dfs and similar
,
graphs
1700
x8411
1093C
Mishka and the Last Exam
greedy
1300
x9236
1093B
Letters Rearranging
constructive algorithms
,
greedy
,
sortings
,
strings
900
x16044
1093A
Dice Rolling
math
800
x17504
1092F
Tree with Maximum Cost
dfs and similar
,
dp
,
trees
1900
x7075
1092E
Minimal Diameter Forest
constructive algorithms
,
dfs and similar
,
greedy
,
trees
2000
x1611
1092D2
Great Vova Wall (Version 2)
data structures
,
implementation
2200
x2813
1092D1
Great Vova Wall (Version 1)
greedy
,
implementation
,
math
2200
x4426
1092C
Prefixes and Suffixes
strings
1700
x5720
1092B
Teams Forming
sortings
800
x25514
1092A
Uniform String
implementation
800
x15649
1091H
New Year and the Tricolore Recreation
games
3200
x398
1091G
New Year and the Factorisation Collaboration
interactive
,
math
,
number theory
3200
x188
1091F
New Year and the Mallard Expedition
constructive algorithms
,
greedy
2600
x782
1091E
New Year and the Acquaintance Estimation
binary search
,
data structures
,
graphs
,
greedy
,
implementation
,
math
,
sortings
2400
x972
1091D
New Year and the Permutation Concatenation
combinatorics
,
dp
,
math
1700
x6578
1091C
New Year and the Sphere Transmission
math
,
number theory
1400
x9711
1091B
New Year and the Treasure Geolocation
brute force
,
constructive algorithms
,
greedy
,
implementation
1200
x10445
1091A
New Year and the Christmas Ornament
brute force
,
implementation
,
math
800
x17309
1090M
The Pleasant Walk
implementation
1000
x5988
1090L
Berland University
greedy
,
math
2000
x1242
1090K
Right Expansion Of The Mind
math
2000
x1042
1090J
Two Prefixes
strings
2600
x406
1090I
Minimal Product
2000
x1020
1090H
Linearization
graphs
2900
x87
1090G
Combostone
games
,
implementation
2500
x102
1090F
How to Learn You Score
constructive algorithms
,
interactive
2600
x296
1090E
Horseback Riding
flows
,
graphs
2300
x572
1090D
Similar Arrays
constructive algorithms
1800
x1979
1090C
New Year Presents
constructive algorithms
,
data structures
2400
x477
1090B
LaTeX Expert
1900
x1370
1090A
Company Merging
greedy
1300
x4026
1089M
Minegraphed
constructive algorithms
,
graphs
2400
x584
1089L
Lazyland
900
x3820
1089K
King Kog's Reception
data structures
2400
x1064
1089J
JS Minification
greedy
,
implementation
3200
x119
1089I
Interval-Free Permutations
combinatorics
2600
x365
1089H
Harder Satisfiability
2-sat
,
dfs and similar
,
graphs
3400
x104
1089G
Guest Student
math
1500
x2847
1089F
Fractions
math
1900
x1896
1089E
Easy Chess
constructive algorithms
1700
x1956
1089D
Distance Sum
graphs
3100
x97
1089C
Cactus Search
interactive
2500
x400
1089B
Bimatching
graphs
3200
x213
1089A
Alice the Fan
dp
2200
x1111
1088F
Ehab and a weird weight formula
data structures
,
trees
2800
x487
1088E
Ehab and a component choosing problem
dp
,
greedy
,
math
,
trees
2400
x1393
1088D
Ehab and another another xor problem
bitmasks
,
constructive algorithms
,
implementation
,
interactive
2000
x2751
1088C
Ehab and a 2-operation task
constructive algorithms
,
greedy
,
math
1400
x7927
1088B
Ehab and subtraction
implementation
,
sortings
1000
x12334
1088A
Ehab and another construction problem
brute force
,
constructive algorithms
800
x16414
1086F
Forest Fires
math
3500
x222
1085G
Beautiful Matrix
combinatorics
,
data structures
,
dp
2900
x504
1085F
Rock-Paper-Scissors Champion
2500
x573
1085E
Vasya and Templates
greedy
,
implementation
,
strings
2300
x854
1085D
Minimum Diameter Tree
constructive algorithms
,
implementation
,
trees
1700
x5279
1085C
Connect Three
implementation
,
math
1600
x5357
1085B
Div Times Mod
math
1100
x9159
1085A
Right-Left Cipher
implementation
,
strings
800
x11854
1084C
The Fair Nut and String
combinatorics
,
dp
,
implementation
1500
x7481
1084B
Kvass and the Fair Nut
greedy
,
implementation
1200
x7677
1084A
The Fair Nut and Elevator
brute force
,
implementation
1000
x7805
1083F
The Fair Nut and Amusing Xor
data structures
3300
x264
1083E
The Fair Nut and Rectangles
data structures
,
dp
,
geometry
2400
x3745
1083D
The Fair Nut's getting crazy
data structures
,
implementation
3500
x223
1083C
Max Mex
data structures
,
trees
2900
x836
1083B
The Fair Nut and Strings
greedy
,
strings
2000
x1837
1083A
The Fair Nut and the Best Path
data structures
,
dp
,
trees
1800
x5173
1082G
Petya and Graph
flows
,
graphs
2400
x1913
1082F
Speed Dial
dp
,
strings
,
trees
2800
x397
1082E
Increasing Frequency
binary search
,
dp
,
greedy
2000
x3974
1082D
Maximum Diameter Graph
constructive algorithms
,
graphs
,
implementation
1800
x3540
1082C
Multi-Subject Competition
greedy
,
sortings
1600
x5493
1082B
Vova and Trophies
greedy
1600
x7399
1082A
Vasya and Book
implementation
,
math
1200
x8403
1081H
Palindromic Magic
data structures
,
hashing
,
strings
3500
x96
1081G
Mergesort Strikes Back
math
,
probabilities
3200
x336
1081F
Tricky Interactor
constructive algorithms
,
implementation
,
interactive
2600
x443
1081E
Missing Numbers
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1900
x2528
1081D
Maximum Distance
dsu
,
graphs
,
shortest paths
,
sortings
1800
x3872
1081C
Colorful Bricks
combinatorics
,
dp
,
math
1500
x6943
1081B
Farewell Party
constructive algorithms
,
implementation
1500
x4376
1081A
Definite Game
constructive algorithms
,
math
800
x11868
1080F
Katya and Segments Sets
data structures
,
interactive
,
sortings
2400
x668
1080E
Sonya and Matrix Beauty
strings
2400
x877
1080D
Olya and magical square
constructive algorithms
,
implementation
,
math
2000
x1514
1080C
Masha and two friends
implementation
1500
x3981
1080B
Margarite and the best present
math
900
x11460
1080A
Petya and Origami
math
800
x17740
1078E
Negative Time Summation
constructive algorithms
3400
x85
1077F2
Pictures with Kittens (hard version)
data structures
,
dp
2100
x2843
1077F1
Pictures with Kittens (easy version)
dp
1900
x3944
1077E
Thematic Contests
greedy
,
sortings
1800
x4339
1077D
Cutting Out
binary search
,
sortings
1600
x8268
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Codeforces Round 940 (Div. 2)
3 days
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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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