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Codeforces Round 941 (Div. 1)
3 days
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Codeforces Round 941 (Div. 2)
3 days
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2-sat
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852D
Exploration plan
binary search
,
flows
,
graph matchings
,
shortest paths
2100
x944
615E
Hexagons
binary search
,
implementation
,
math
2100
x962
730C
Bulmart
binary search
,
dfs and similar
2100
x1004
1070E
Getting Deals Done
binary search
,
data structures
2100
x1189
818F
Level Generation
binary search
,
math
,
ternary search
2100
x1281
862E
Mahmoud and Ehab and the function
binary search
,
data structures
,
sortings
2100
x1388
748E
Santa Claus and Tangerines
binary search
,
data structures
,
greedy
,
two pointers
2100
x1440
1866G
Grouped Carriages
binary search
,
data structures
,
dp
,
flows
,
greedy
2100
x1497
837E
Vasya's Function
binary search
,
implementation
,
math
2100
x1505
590B
Chip 'n Dale Rescue Rangers
binary search
,
geometry
,
math
2100
x1693
549H
Degenerate Matrix
binary search
,
math
2100
x1784
333D
Characteristics of Rectangles
binary search
,
bitmasks
,
brute force
,
implementation
,
sortings
2100
x1844
540E
Infinite Inversions
binary search
,
data structures
,
implementation
,
sortings
,
trees
2100
x2004
1801D
The way home
binary search
,
data structures
,
dp
,
graphs
,
greedy
,
shortest paths
,
sortings
2100
x2028
431D
Random Task
binary search
,
bitmasks
,
combinatorics
,
dp
,
math
2100
x2103
301B
Yaroslav and Time
binary search
,
graphs
,
shortest paths
2100
x2104
754D
Fedor and coupons
binary search
,
data structures
,
greedy
,
sortings
2100
x2132
1808D
Petya, Petya, Petr, and Palindromes
binary search
,
brute force
,
data structures
,
two pointers
2100
x2140
1201D
Treasure Hunting
binary search
,
dp
,
greedy
,
implementation
2100
x2146
767D
Cartons of milk
binary search
,
data structures
,
greedy
,
sortings
,
two pointers
2100
x2189
985D
Sand Fortress
binary search
,
constructive algorithms
,
math
2100
x2253
1039B
Subway Pursuit
binary search
,
interactive
,
probabilities
2100
x2274
1942D
Learning to Paint
binary search
,
data structures
,
dfs and similar
,
dp
,
greedy
,
implementation
,
sortings
2100
x2334
1710B
Rain
binary search
,
brute force
,
data structures
,
geometry
,
greedy
,
implementation
,
math
2100
x2347
762C
Two strings
binary search
,
hashing
,
strings
,
two pointers
2100
x2351
1167E
Range Deleting
binary search
,
combinatorics
,
data structures
,
two pointers
2100
x2389
1732C2
Sheikh (Hard Version)
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
two pointers
2100
x2450
955C
Sad powers
binary search
,
math
,
number theory
2100
x2452
1108F
MST Unification
binary search
,
dsu
,
graphs
,
greedy
2100
x2547
525E
Anya and Cubes
binary search
,
bitmasks
,
brute force
,
dp
,
math
,
meet-in-the-middle
2100
x2722
1832D1
Red-Blue Operations (Easy Version)
binary search
,
greedy
,
implementation
,
math
2100
x2782
1284D
New Year and Conference
binary search
,
data structures
,
hashing
,
sortings
2100
x2911
1684E
MEX vs DIFF
binary search
,
brute force
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
2100
x3029
689D
Friends and Subsequences
binary search
,
data structures
2100
x3053
1271E
Common Number
binary search
,
combinatorics
,
dp
,
math
2100
x3108
1637E
Best Pair
binary search
,
brute force
,
implementation
2100
x3176
985E
Pencils and Boxes
binary search
,
data structures
,
dp
,
greedy
,
two pointers
2100
x3230
1446C
Xor Tree
binary search
,
bitmasks
,
data structures
,
divide and conquer
,
dp
,
trees
2100
x3383
1626D
Martial Arts Tournament
binary search
,
brute force
,
greedy
,
math
2100
x3780
1454F
Array Partition
binary search
,
data structures
,
greedy
,
two pointers
2100
x3790
1363D
Guess The Maximums
binary search
,
implementation
,
interactive
,
math
2100
x3822
1322B
Present
binary search
,
bitmasks
,
constructive algorithms
,
data structures
,
math
,
sortings
2100
x3888
1366E
Two Arrays
binary search
,
brute force
,
combinatorics
,
constructive algorithms
,
dp
,
two pointers
2100
x3951
1516D
Cut
binary search
,
data structures
,
dp
,
graphs
,
number theory
,
two pointers
2100
x4076
1360H
Binary Median
binary search
,
bitmasks
,
brute force
,
constructive algorithms
2100
x4276
1538G
Gift Set
binary search
,
greedy
,
math
,
ternary search
2100
x4345
1370E
Binary Subsequence Rotation
binary search
,
constructive algorithms
,
data structures
,
greedy
2100
x4607
1355E
Restorer Distance
binary search
,
greedy
,
math
,
sortings
,
ternary search
2100
x4705
208E
Blood Cousins
binary search
,
data structures
,
dfs and similar
,
trees
2100
x6046
519E
A and B and Lecture Rooms
binary search
,
data structures
,
dfs and similar
,
dp
,
trees
2100
x6159
1486D
Max Median
binary search
,
data structures
,
dp
2100
x6668
484B
Maximum Value
binary search
,
math
,
sortings
,
two pointers
2100
x6760
1211E
Double Permutation Inc.
*special problem
,
binary search
,
greedy
2000
x188
1211D
Teams
*special problem
,
binary search
,
greedy
,
math
2000
x223
774L
Bars
*special problem
,
binary search
2000
x321
309A
Morning run
binary search
,
math
,
two pointers
2000
x458
73B
Need For Brake
binary search
,
greedy
,
sortings
2000
x488
131F
Present to Mom
binary search
,
two pointers
2000
x598
248C
Robo-Footballer
binary search
,
geometry
2000
x793
374D
Inna and Sequence
binary search
,
data structures
,
dp
,
trees
2000
x843
245F
Log Stream Analysis
binary search
,
brute force
,
implementation
,
strings
2000
x859
163B
Lemmings
binary search
2000
x1044
366D
Dima and Trap Graph
binary search
,
data structures
,
dfs and similar
,
dsu
,
shortest paths
,
two pointers
2000
x1270
382B
Number Busters
binary search
,
math
2000
x1383
314B
Sereja and Periods
binary search
,
dfs and similar
,
strings
2000
x1452
490E
Restoring Increasing Sequence
binary search
,
brute force
,
greedy
,
implementation
2000
x1515
1725C
Circular Mirror
binary search
,
combinatorics
,
geometry
,
math
,
two pointers
2000
x1532
862D
Mahmoud and Ehab and the binary string
binary search
,
divide and conquer
,
interactive
2000
x1648
258C
Little Elephant and LCM
binary search
,
combinatorics
,
dp
,
math
2000
x1754
1165F1
Microtransactions (easy version)
binary search
,
greedy
2000
x1763
954E
Water Taps
binary search
,
greedy
,
sortings
2000
x1797
1019B
The hat
binary search
,
interactive
2000
x1891
954G
Castle Defense
binary search
,
data structures
,
greedy
,
two pointers
2000
x1893
1102F
Elongated Matrix
binary search
,
bitmasks
,
brute force
,
dp
,
graphs
2000
x1898
21C
Stripe 2
binary search
,
dp
,
sortings
2000
x2005
1165F2
Microtransactions (hard version)
binary search
,
greedy
,
implementation
2000
x2019
896B
Ithea Plays With Chtholly
binary search
,
constructive algorithms
,
games
,
greedy
,
interactive
2000
x2047
1881G
Anya and the Mysterious String
binary search
,
data structures
2000
x2143
1741F
Multi-Colored Segments
binary search
,
data structures
,
math
,
sortings
2000
x2211
1619G
Unusual Minesweeper
binary search
,
dfs and similar
,
dsu
,
greedy
,
sortings
2000
x2258
1936B
Pinball
binary search
,
data structures
,
implementation
,
math
,
two pointers
2000
x2358
1029F
Multicolored Markers
binary search
,
brute force
,
math
,
number theory
2000
x2466
749D
Leaving Auction
binary search
,
data structures
2000
x2512
609D
Gadgets for dollars and pounds
binary search
,
greedy
,
two pointers
2000
x2546
1862G
The Great Equalizer
binary search
,
data structures
,
math
,
sortings
2000
x2627
360B
Levko and Array
binary search
,
dp
2000
x2696
1851G
Vlad and the Mountains
binary search
,
data structures
,
dsu
,
graphs
,
implementation
,
sortings
,
trees
,
two pointers
2000
x2900
671B
Robin Hood
binary search
,
greedy
2000
x2966
474E
Pillars
binary search
,
data structures
,
dp
,
sortings
,
trees
2000
x3086
1624F
Interacdive Problem
binary search
,
constructive algorithms
,
interactive
2000
x3165
1103B
Game with modulo
binary search
,
constructive algorithms
,
interactive
2000
x3165
842D
Vitya and Strange Lesson
binary search
,
data structures
2000
x3207
1690G
Count the Trains
binary search
,
data structures
,
greedy
,
sortings
2000
x3215
487B
Strip
binary search
,
data structures
,
dp
,
two pointers
2000
x3343
1584D
Guess the Permutation
binary search
,
combinatorics
,
interactive
,
math
2000
x3510
1582E
Pchelyonok and Segments
binary search
,
data structures
,
dp
,
greedy
,
math
2000
x3575
1827B1
Range Sorting (Easy Version)
binary search
,
dp
,
dsu
,
greedy
,
trees
,
two pointers
2000
x3640
1551E
Fixed Points
binary search
,
brute force
,
dp
2000
x3669
1788D
Moving Dots
binary search
,
brute force
,
combinatorics
,
math
,
two pointers
2000
x3702
1237D
Balanced Playlist
binary search
,
data structures
,
implementation
2000
x3780
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