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CodeCraft-22 and Codeforces Round #795 (Div. 2)
3 days
→ Filter Problems
Difficulty:
—
bitmasks
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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Custom test
Problems
#
Name
579A
Raising Bacteria
bitmasks
1000
x36248
467B
Fedor and New Game
bitmasks
,
brute force
,
constructive algorithms
,
implementation
1100
x27308
1527A
And Then There Were K
bitmasks
800
x25782
476B
Dreamoon and WiFi
bitmasks
,
brute force
,
combinatorics
,
dp
,
math
,
probabilities
1300
x21784
1421A
XORwice
bitmasks
,
greedy
,
math
800
x21023
1559A
Mocha and Math
bitmasks
,
constructive algorithms
,
math
900
x20512
1097B
Petr and a Combination Lock
bitmasks
,
brute force
,
dp
1200
x17914
1494A
ABC String
bitmasks
,
brute force
,
implementation
900
x17890
1635A
Min Or Sum
bitmasks
,
greedy
800
x17775
1420B
Rock and Lever
bitmasks
,
math
1200
x17579
1567B
MEXor Mixup
bitmasks
,
greedy
1000
x17336
535B
Tavas and SaDDas
bitmasks
,
brute force
,
combinatorics
,
implementation
1100
x17042
1566B
MIN-MEX Cut
bitmasks
,
constructive algorithms
,
dp
,
greedy
800
x16455
1514B
AND 0, Sum Big
bitmasks
,
combinatorics
,
math
1200
x16272
1632B
Roof Construction
bitmasks
,
constructive algorithms
1000
x16259
1362B
Johnny and His Hobbies
bitmasks
,
brute force
1200
x16183
1625A
Ancient Civilization
bitmasks
,
greedy
,
math
800
x15061
1362C
Johnny and Another Rating Drop
bitmasks
,
greedy
,
math
1400
x14640
1385D
a-Good String
bitmasks
,
brute force
,
divide and conquer
,
dp
,
implementation
1500
x14575
1594B
Special Numbers
bitmasks
,
math
1100
x14399
1463B
Find The Array
bitmasks
,
constructive algorithms
,
greedy
1400
x14367
1566C
MAX-MEX Cut
bitmasks
,
constructive algorithms
,
dp
,
greedy
1000
x14254
1516B
AGAGA XOOORRR
bitmasks
,
brute force
,
dp
,
greedy
1500
x13833
1553C
Penalty
bitmasks
,
brute force
,
dp
,
greedy
1200
x13826
550B
Preparing Olympiad
bitmasks
,
brute force
1400
x13593
1312C
Adding Powers
bitmasks
,
greedy
,
implementation
,
math
,
number theory
,
ternary search
1400
x13429
1498B
Box Fitting
binary search
,
bitmasks
,
data structures
,
greedy
1300
x12972
1547D
Co-growing Sequence
bitmasks
,
constructive algorithms
,
greedy
1300
x12859
1634B
Fortune Telling
bitmasks
,
math
1400
x12364
1095C
Powers Of Two
bitmasks
,
greedy
1400
x11977
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x11957
743B
Chloe and the sequence
binary search
,
bitmasks
,
constructive algorithms
,
implementation
1200
x11902
1494B
Berland Crossword
bitmasks
,
brute force
,
greedy
,
implementation
1400
x11900
1270C
Make Good
bitmasks
,
constructive algorithms
,
math
1400
x11596
1615B
And It's Non-Zero
bitmasks
,
greedy
,
math
1300
x11478
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x11278
1661B
Getting Zero
bitmasks
,
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
shortest paths
1300
x11201
1395C
Boboniu and Bit Operations
bitmasks
,
brute force
,
dp
,
greedy
1600
x11149
1630A
And Matching
bitmasks
,
constructive algorithms
1500
x10832
1513B
AND Sequences
bitmasks
,
combinatorics
,
constructive algorithms
,
math
1400
x10663
1682B
AND Sorting
bitmasks
,
constructive algorithms
,
sortings
1100
x10610
96B
Lucky Numbers (easy)
binary search
,
bitmasks
,
brute force
1300
x10544
1554B
Cobb
bitmasks
,
brute force
,
greedy
,
math
1700
x10221
1360F
Spy-string
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
hashing
,
strings
1700
x9967
1567C
Carrying Conundrum
bitmasks
,
combinatorics
,
dp
,
math
1600
x9842
276D
Little Girl and Maximum XOR
bitmasks
,
dp
,
greedy
,
implementation
,
math
1700
x9655
1601A
Array Elimination
bitmasks
,
greedy
,
math
,
number theory
1300
x9611
1325D
Ehab the Xorcist
bitmasks
,
constructive algorithms
,
greedy
,
number theory
1700
x9479
1669H
Maximal AND
bitmasks
,
greedy
,
math
1300
x9160
1632C
Strange Test
binary search
,
bitmasks
,
brute force
,
dp
,
math
1600
x9142
1368D
AND, OR and square sum
bitmasks
,
greedy
,
math
1700
x9142
1516C
Baby Ehab Partitions Again
bitmasks
,
constructive algorithms
,
dp
,
math
1700
x9040
1646C
Factorials and Powers of Two
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
math
1500
x8941
912B
New Year's Eve
bitmasks
,
constructive algorithms
,
number theory
1300
x8888
484A
Bits
bitmasks
,
constructive algorithms
1700
x8440
1151B
Dima and a Bad XOR
bitmasks
,
brute force
,
constructive algorithms
,
dp
1600
x8330
611B
New Year and Old Property
bitmasks
,
brute force
,
implementation
1300
x7928
1152B
Neko Performs Cat Furrier Transform
bitmasks
,
constructive algorithms
,
dfs and similar
,
math
1300
x7866
1202A
You Are Given Two Binary Strings...
bitmasks
,
greedy
1100
x7826
1614C
Divan and bitwise operations
bitmasks
,
combinatorics
,
constructive algorithms
,
dp
,
math
1500
x7581
437B
The Child and Set
bitmasks
,
greedy
,
implementation
,
sortings
1500
x7576
1225C
p-binary
bitmasks
,
brute force
,
math
1600
x7559
1659B
Bit Flipping
bitmasks
,
constructive algorithms
,
greedy
,
strings
1300
x7304
1332D
Walk on Matrix
bitmasks
,
constructive algorithms
,
math
1700
x7264
913C
Party Lemonade
bitmasks
,
dp
,
greedy
1600
x6998
1338B
Edge Weight Assignment
bitmasks
,
constructive algorithms
,
dfs and similar
,
greedy
,
math
,
trees
1800
x6983
1340B
Nastya and Scoreboard
bitmasks
,
dp
,
graphs
,
greedy
1700
x6933
580D
Kefa and Dishes
bitmasks
,
dp
1800
x6895
1557C
Moamen and XOR
bitmasks
,
combinatorics
,
dp
,
math
,
matrices
1700
x6851
1554C
Mikasa
binary search
,
bitmasks
,
greedy
,
implementation
1800
x6756
706D
Vasiliy's Multiset
binary search
,
bitmasks
,
data structures
,
trees
1800
x6728
1543D1
RPD and Rap Sheet (Easy Version)
bitmasks
,
constructive algorithms
,
interactive
,
math
1700
x6570
1658D1
388535 (Easy Version)
bitmasks
,
math
1600
x6366
1217C
The Number Of Good Substrings
binary search
,
bitmasks
,
brute force
1700
x6325
224B
Array
bitmasks
,
implementation
,
two pointers
1500
x6110
1285D
Dr. Evil Underscores
bitmasks
,
brute force
,
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
strings
,
trees
1900
x5917
1466E
Apollo versus Pan
bitmasks
,
brute force
,
math
1800
x5854
1329B
Dreamoon Likes Sequences
bitmasks
,
combinatorics
,
math
1700
x5775
1051D
Bicolorings
bitmasks
,
dp
1700
x5759
1491D
Zookeeper and The Infinite Zoo
bitmasks
,
constructive algorithms
,
dp
,
greedy
,
math
1800
x5678
677C
Vanya and Label
bitmasks
,
combinatorics
,
implementation
,
strings
1500
x5670
1303D
Fill The Bag
bitmasks
,
greedy
1900
x5580
1592C
Bakry and Partitioning
bitmasks
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
trees
1700
x5540
1205B
Shortest Cycle
bitmasks
,
brute force
,
graphs
,
shortest paths
1900
x5423
242E
XOR on Segment
bitmasks
,
data structures
2000
x5361
1552D
Array Differentiation
bitmasks
,
brute force
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
math
1800
x5320
1470B
Strange Definition
bitmasks
,
graphs
,
hashing
,
math
,
number theory
1900
x5281
1492D
Genius's Gambit
bitmasks
,
constructive algorithms
,
greedy
,
math
1900
x5198
1288D
Minimax Problem
binary search
,
bitmasks
,
dp
2000
x5194
1556D
Take a Guess
bitmasks
,
constructive algorithms
,
interactive
,
math
1800
x4936
961C
Chessboard
bitmasks
,
brute force
,
implementation
1400
x4812
878A
Short Program
bitmasks
,
constructive algorithms
1600
x4745
1207E
XOR Guessing
bitmasks
,
interactive
,
math
1900
x4681
1560F1
Nearest Beautiful Number (easy version)
binary search
,
bitmasks
,
brute force
,
constructive algorithms
,
dfs and similar
,
greedy
1900
x4665
812B
Sagheer, the Hausmeister
bitmasks
,
brute force
,
dp
1600
x4640
570D
Tree Requests
binary search
,
bitmasks
,
constructive algorithms
,
dfs and similar
,
graphs
,
trees
2200
x4613
1543C
Need for Pink Slips
bitmasks
,
brute force
,
dfs and similar
,
implementation
,
math
,
probabilities
1900
x4586
1635D
Infinite Set
bitmasks
,
dp
,
math
,
matrices
,
number theory
,
strings
1800
x4341
888E
Maximum Subsequence
bitmasks
,
divide and conquer
,
meet-in-the-middle
1800
x4320
510D
Fox And Jumping
bitmasks
,
brute force
,
dp
,
math
1900
x4158
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