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Codeforces Round 950 (Div. 3)
08:06:23
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Difficulty:
—
greedy
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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Problems
#
Name
1089J
JS Minification
greedy
,
implementation
3200
x121
1088E
Ehab and a component choosing problem
dp
,
greedy
,
math
,
trees
2400
x1408
1088C
Ehab and a 2-operation task
constructive algorithms
,
greedy
,
math
1400
x7971
1085E
Vasya and Templates
greedy
,
implementation
,
strings
2300
x861
1084B
Kvass and the Fair Nut
greedy
,
implementation
1200
x7710
1083B
The Fair Nut and Strings
greedy
,
strings
2000
x1873
1082E
Increasing Frequency
binary search
,
dp
,
greedy
2000
x4107
1082C
Multi-Subject Competition
greedy
,
sortings
1600
x5526
1082B
Vova and Trophies
greedy
1600
x7430
1081E
Missing Numbers
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1900
x2542
1077E
Thematic Contests
greedy
,
sortings
1800
x4407
1077B
Disturbed People
greedy
1000
x18386
1076F
Summer Practice Report
dp
,
greedy
2500
x625
1076D
Edge Deletion
graphs
,
greedy
,
shortest paths
1800
x4938
1076A
Minimizing the String
greedy
,
strings
1200
x12869
1073F
Choosing Two Paths
dfs and similar
,
dp
,
greedy
,
trees
2500
x524
1073D
Berland Fair
binary search
,
brute force
,
data structures
,
greedy
1700
x6333
1070G
Monsters and Potions
brute force
,
dp
,
greedy
,
implementation
2300
x818
1070F
Debate
greedy
1500
x3571
1070D
Garbage Disposal
greedy
1300
x4856
1070C
Cloud Computing
data structures
,
greedy
2000
x1997
1070B
Berkomnadzor
data structures
,
greedy
2400
x470
1067D
Computer Game
dp
,
greedy
,
math
,
probabilities
3100
x358
1066B
Heaters
greedy
,
two pointers
1500
x8117
1065C
Make It Equal
greedy
1600
x7672
1062E
Company
binary search
,
data structures
,
dfs and similar
,
greedy
,
trees
2300
x1722
1062C
Banh-mi
greedy
,
implementation
,
math
1600
x5328
1062B
Math
greedy
,
math
,
number theory
1500
x8467
1062A
A Prank
greedy
,
implementation
1300
x8695
1061D
TV Shows
data structures
,
greedy
,
implementation
,
sortings
2000
x2301
1061B
Views Matter
greedy
,
implementation
,
sortings
1400
x7242
1061A
Coins
greedy
,
implementation
,
math
800
x21381
1060D
Social Circles
greedy
,
math
1900
x3572
1060B
Maximum Sum of Digits
greedy
1100
x8796
1059E
Split the Tree
binary search
,
data structures
,
dp
,
greedy
,
trees
2400
x1359
1056D
Decorate Apple Tree
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
greedy
,
sortings
,
trees
1600
x5711
1056C
Pick Heroes
greedy
,
implementation
,
interactive
,
sortings
1700
x2323
1055D
Refactoring
greedy
,
implementation
,
strings
2400
x617
1054G
New Road Network
constructive algorithms
,
greedy
,
math
3300
x265
1054D
Changing Array
greedy
,
implementation
1900
x2219
1051G
Distinctification
data structures
,
dsu
,
greedy
2900
x380
1051C
Vasya and Multisets
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x9166
1051B
Relatively Prime Pairs
greedy
,
math
,
number theory
1000
x16678
1051A
Vasya And Password
greedy
,
implementation
,
strings
1200
x8332
1046C
Space Formula
greedy
1400
x3041
1043E
Train Hard, Win Easy
constructive algorithms
,
greedy
,
math
,
sortings
1900
x2691
1043C
Smallest Word
constructive algorithms
,
greedy
,
implementation
1500
x6791
1042F
Leaf Sets
data structures
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
sortings
,
trees
2400
x1244
1042C
Array Product
constructive algorithms
,
greedy
,
math
1700
x4633
1041E
Tree Reconstruction
constructive algorithms
,
data structures
,
graphs
,
greedy
1900
x3523
1041C
Coffee Break
binary search
,
data structures
,
greedy
,
two pointers
1600
x9310
1041A
Heist
greedy
,
implementation
,
sortings
800
x24598
1040B
Shashlik Cooking
dp
,
greedy
,
math
1300
x7026
1040A
Palindrome Dance
greedy
1000
x9353
1039A
Timetable
constructive algorithms
,
data structures
,
greedy
,
math
2300
x772
1038D
Slime
dp
,
greedy
,
implementation
1800
x8145
1038C
Gambling
greedy
,
sortings
1300
x9349
1037C
Equalize
dp
,
greedy
,
strings
1300
x18383
1037B
Reach Median
greedy
1300
x10216
1037A
Packets
constructive algorithms
,
greedy
,
math
1300
x10973
1036D
Vasya and Arrays
greedy
,
two pointers
1600
x9005
1031D
Minimum path
greedy
1900
x2621
1031C
Cram Time
greedy
1600
x5172
1029E
Tree with Small Distances
dp
,
graphs
,
greedy
2100
x2796
1029C
Maximal Intersection
greedy
,
math
,
sortings
1600
x7343
1029B
Creating the Contest
dp
,
greedy
,
math
1200
x16500
1028D
Order book
combinatorics
,
data structures
,
greedy
2100
x1715
1027C
Minimum Value Rectangle
greedy
1600
x6657
1025B
Weakened Common Divisor
brute force
,
greedy
,
number theory
1600
x7787
1023C
Bracket Subsequence
greedy
1200
x9627
1019A
Elections
brute force
,
greedy
1700
x4571
1017C
The Phone Number
constructive algorithms
,
greedy
1600
x5925
1016A
Death Note
greedy
,
implementation
,
math
900
x14708
1015E2
Stars Drawing (Hard Edition)
binary search
,
dp
,
greedy
1900
x3482
1015E1
Stars Drawing (Easy Edition)
brute force
,
dp
,
greedy
1700
x5493
1015D
Walking Between Houses
constructive algorithms
,
greedy
1600
x7977
1013B
And
greedy
1200
x7495
1011A
Stages
greedy
,
implementation
,
sortings
900
x11972
1009G
Allowed Letters
bitmasks
,
flows
,
graph matchings
,
graphs
,
greedy
2400
x776
1009D
Relatively Prime Graph
brute force
,
constructive algorithms
,
graphs
,
greedy
,
math
1700
x6163
1009C
Annoying Present
greedy
,
math
1700
x5200
1009B
Minimum Ternary String
greedy
,
implementation
1400
x9921
1008B
Turn the Rectangles
greedy
,
sortings
1000
x11264
1006B
Polycarp's Practice
greedy
,
implementation
,
sortings
1200
x12875
1005D
Polycarp and Div 3
dp
,
greedy
,
number theory
1500
x9875
1005C
Summarize to the Power of Two
brute force
,
greedy
,
implementation
1300
x11371
1004E
Sonya and Ice Cream
binary search
,
data structures
,
dp
,
greedy
,
shortest paths
,
trees
2400
x1013
1004B
Sonya and Exhibition
constructive algorithms
,
greedy
,
implementation
,
math
1300
x9231
1003D
Coins and Queries
greedy
1600
x7564
1000B
Light It Up
greedy
1500
x5595
1000A
Codehorses T-shirts
greedy
,
implementation
1200
x8612
999E
Reachability from the Capital
dfs and similar
,
graphs
,
greedy
2000
x6393
999D
Equalize the Remainders
data structures
,
greedy
,
implementation
1900
x4177
998B
Cutting
dp
,
greedy
,
sortings
1200
x12797
997B
Roman Digits
brute force
,
combinatorics
,
dp
,
greedy
,
math
2000
x2870
997A
Convert to Ones
brute force
,
greedy
,
implementation
,
math
1500
x8178
996A
Hit the Lottery
dp
,
greedy
800
x85196
995C
Leaving the Bar
brute force
,
data structures
,
geometry
,
greedy
,
math
,
sortings
2300
x1731
995B
Suit and Tie
greedy
,
implementation
,
math
1400
x7024
994B
Knights of a Polygonal Table
greedy
,
implementation
,
sortings
1400
x5552
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