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Codeforces Round #607 (Div. 1)
09:26:00
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Codeforces Round #607 (Div. 2)
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→ Filter Problems
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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
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Custom test
Problems
#
Name
913H
Don't Exceed
math
,
probabilities
3400
x56
1190F
Tokitsukaze and Powers
number theory
,
probabilities
3300
x35
618G
Combining Slimes
dp
,
math
,
matrices
,
probabilities
3300
x83
553E
Kyoya and Train
dp
,
fft
,
graphs
,
math
,
probabilities
3300
x215
949F
Astronomy
geometry
,
probabilities
3200
x29
1210F2
Marek and Matching (hard version)
brute force
,
probabilities
3100
x59
1267G
Game Relics
math
,
probabilities
3100
x74
1148G
Gold Experience
constructive algorithms
,
graphs
,
math
,
number theory
,
probabilities
3100
x81
1081G
Mergesort Strikes Back
math
,
probabilities
3000
x88
1264D2
Beautiful Bracket Sequence (hard version)
combinatorics
,
probabilities
3000
x141
1236F
Alice and the Cactus
dfs and similar
,
graphs
,
math
,
probabilities
2900
x38
1210F1
Marek and Matching (easy version)
brute force
,
probabilities
2900
x79
335E
Counting Skyscrapers
dp
,
math
,
probabilities
2900
x120
989E
A Trance of Nightfall
dp
,
geometry
,
matrices
,
probabilities
2900
x152
679D
Bear and Chase
brute force
,
dfs and similar
,
graphs
,
implementation
,
math
,
probabilities
2900
x220
1198F
GCD Groups 2
greedy
,
number theory
,
probabilities
2900
x261
494C
Helping People
dp
,
probabilities
2900
x404
739E
Gosha is hunting
brute force
,
data structures
,
dp
,
flows
,
math
,
probabilities
,
sortings
2900
x609
802F
Marmots (hard)
math
,
probabilities
2800
x79
1067D
Computer Game
dp
,
greedy
,
math
,
probabilities
2800
x89
303E
Random Ranking
dp
,
math
,
probabilities
2800
x136
446D
DZY Loves Games
math
,
matrices
,
probabilities
2800
x177
183D
T-shirt
dp
,
greedy
,
probabilities
2800
x234
559D
Randomizer
combinatorics
,
geometry
,
probabilities
2800
x258
1153F
Serval and Bonus Problem
combinatorics
,
dp
,
math
,
probabilities
2800
x339
26D
Tickets
combinatorics
,
math
,
probabilities
2800
x374
482C
Game with Strings
bitmasks
,
dp
,
probabilities
2800
x534
457D
Bingo!
combinatorics
,
math
,
probabilities
2700
x134
293D
Ksusha and Square
geometry
,
math
,
probabilities
,
two pointers
2700
x175
277D
Google Code Jam
dp
,
probabilities
2700
x200
248E
Piglet's Birthday
dp
,
math
,
probabilities
2700
x277
913F
Strongly Connected Tournament
dp
,
graphs
,
math
,
probabilities
2700
x282
441E
Valera and Number
bitmasks
,
dp
,
math
,
probabilities
2700
x294
1172C2
Nauuo and Pictures (hard version)
dp
,
probabilities
2700
x359
712E
Memory and Casinos
data structures
,
math
,
probabilities
2700
x370
28C
Bath Queue
combinatorics
,
dp
,
probabilities
2700
x522
896C
Willem, Chtholly and Seniorious
data structures
,
probabilities
2700
x700
698C
LRU
bitmasks
,
dp
,
math
,
probabilities
2700
x816
98B
Help King
implementation
,
probabilities
,
trees
2600
x62
107E
Darts
geometry
,
probabilities
2600
x91
623D
Birthday
greedy
,
math
,
probabilities
2600
x284
643E
Bear and Destroying Subtrees
dp
,
math
,
probabilities
,
trees
2600
x298
123E
Maze
dfs and similar
,
dp
,
probabilities
,
trees
2600
x304
1096E
The Top Scorer
combinatorics
,
dp
,
math
,
probabilities
2600
x310
1045D
Interstellar battle
math
,
probabilities
,
trees
2600
x326
1254D
Tree Queries
data structures
,
probabilities
,
trees
2600
x338
1187F
Expected Square Beauty
dp
,
math
,
probabilities
2600
x341
1264D1
Beautiful Bracket Sequence (easy version)
combinatorics
,
dp
,
probabilities
2600
x363
464D
World of Darkraft - 2
dp
,
probabilities
2600
x367
605E
Intergalaxy Trips
probabilities
,
shortest paths
2600
x412
749E
Inversions After Shuffle
data structures
,
probabilities
2600
x483
258D
Little Elephant and Broken Sorting
dp
,
math
,
probabilities
2600
x606
364D
Ghd
brute force
,
math
,
probabilities
2600
x675
424E
Colored Jenga
dfs and similar
,
dp
,
probabilities
2500
x73
98E
Help Shrek and Donkey
dp
,
games
,
math
,
probabilities
2500
x144
113D
Museum
math
,
matrices
,
probabilities
2500
x318
229E
Gifts
combinatorics
,
dp
,
math
,
probabilities
2500
x331
1194F
Crossword Expert
combinatorics
,
dp
,
number theory
,
probabilities
,
two pointers
2500
x435
895E
Eyes Closed
data structures
,
probabilities
2500
x465
1156F
Card Bag
dp
,
math
,
probabilities
2500
x535
1151F
Sonya and Informatics
combinatorics
,
dp
,
matrices
,
probabilities
2500
x535
596D
Wilbur and Trees
dp
,
math
,
probabilities
,
sortings
2500
x543
1172C1
Nauuo and Pictures (easy version)
dp
,
probabilities
2500
x563
138C
Mushroom Gnomes - 2
binary search
,
data structures
,
probabilities
,
sortings
2500
x630
498B
Name That Tune
dp
,
probabilities
,
two pointers
2500
x847
662A
Gambling Nim
bitmasks
,
math
,
matrices
,
probabilities
2400
x206
175D
Plane of Tanks: Duel
brute force
,
dp
,
math
,
probabilities
2400
x223
68D
Half-decay tree
data structures
,
divide and conquer
,
dp
,
math
,
probabilities
2400
x266
717H
Pokermon League challenge
math
,
probabilities
2400
x302
1061F
Lost Root
interactive
,
probabilities
2400
x336
513G2
Inversions problem
dp
,
probabilities
2400
x421
633E
Startup Funding
binary search
,
constructive algorithms
,
data structures
,
probabilities
,
two pointers
2400
x445
1264C
Beautiful Mirrors with queries
data structures
,
probabilities
2400
x559
24D
Broken robot
dp
,
probabilities
2400
x561
629E
Famil Door and Roads
combinatorics
,
data structures
,
dfs and similar
,
dp
,
probabilities
,
trees
2400
x564
417E
Square Table
constructive algorithms
,
math
,
probabilities
2400
x567
840D
Destiny
data structures
,
probabilities
2400
x691
444B
DZY Loves FFT
probabilities
2400
x770
601C
Kleofáš and the n-thlon
dp
,
math
,
probabilities
2400
x876
711E
ZS and The Birthday Paradox
math
,
number theory
,
probabilities
2400
x997
280C
Game on Tree
implementation
,
math
,
probabilities
,
trees
2400
x1387
101D
Castle
dp
,
greedy
,
probabilities
,
sortings
,
trees
2300
x344
150C
Smart Cheater
data structures
,
math
,
probabilities
2300
x483
768F
Barrels and boxes
brute force
,
combinatorics
,
math
,
number theory
,
probabilities
2300
x661
641D
Little Artem and Random Variable
dp
,
implementation
,
math
,
probabilities
2300
x693
1245E
Hyakugoku and Ladders
dp
,
probabilities
,
shortest paths
2300
x697
1042E
Vasya and Magic Matrix
dp
,
math
,
probabilities
2300
x780
1139D
Steps to One
dp
,
math
,
number theory
,
probabilities
2300
x821
1096F
Inversion Expectation
dp
,
math
,
probabilities
2300
x837
85C
Petya and Tree
binary search
,
dfs and similar
,
probabilities
,
sortings
,
trees
2200
x451
960E
Alternating Tree
combinatorics
,
dfs and similar
,
divide and conquer
,
dp
,
probabilities
,
trees
2200
x785
204C
Little Elephant and Furik and Rubik
math
,
probabilities
2200
x804
908D
New Year and Arbitrary Arrangement
dp
,
math
,
probabilities
2200
x1341
1097D
Makoto and a Blackboard
dp
,
math
,
number theory
,
probabilities
2200
x1652
50D
Bombing
binary search
,
dp
,
probabilities
2100
x426
859D
Third Month Insanity
dp
,
probabilities
,
trees
2100
x633
268E
Playlist
math
,
probabilities
,
sortings
2100
x751
870D
Something with XOR Queries
brute force
,
interactive
,
probabilities
2100
x848
261B
Maxim and Restaurant
dp
,
math
,
probabilities
2100
x1037
1265E
Beautiful Mirrors
data structures
,
dp
,
math
,
probabilities
2100
x1054
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