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Before contest
Codeforces Round 941 (Div. 1)
13:59:17
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Before contest
Codeforces Round 941 (Div. 2)
13:59:17
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2-sat
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Name
1862G
The Great Equalizer
binary search
,
data structures
,
math
,
sortings
2000
x2628
1535E
Gold Transfer
binary search
,
data structures
,
dp
,
greedy
,
interactive
,
trees
2200
x2628
609D
Gadgets for dollars and pounds
binary search
,
greedy
,
two pointers
2000
x2550
1108F
MST Unification
binary search
,
dsu
,
graphs
,
greedy
2100
x2548
1059D
Nature Reserve
binary search
,
geometry
,
ternary search
2200
x2540
1081E
Missing Numbers
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1900
x2528
749D
Leaving Auction
binary search
,
data structures
2000
x2520
1848D
Vika and Bonuses
binary search
,
brute force
,
math
,
ternary search
2200
x2506
335A
Banana
binary search
,
constructive algorithms
,
greedy
1400
x2505
101B
Buses
binary search
,
data structures
,
dp
1700
x2486
1404C
Fixed Point Removal
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
2300
x2484
1029F
Multicolored Markers
binary search
,
brute force
,
math
,
number theory
2000
x2467
955C
Sad powers
binary search
,
math
,
number theory
2100
x2453
1732C2
Sheikh (Hard Version)
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
two pointers
2100
x2451
232A
Cycles
binary search
,
constructive algorithms
,
graphs
,
greedy
1600
x2443
373B
Making Sequences is Fun
binary search
,
implementation
,
math
1600
x2428
367B
Sereja ans Anagrams
binary search
,
data structures
1900
x2404
1167E
Range Deleting
binary search
,
combinatorics
,
data structures
,
two pointers
2100
x2399
1177B
Digits Sequence (Hard Edition)
binary search
,
divide and conquer
,
implementation
1800
x2393
817F
MEX Queries
binary search
,
data structures
,
trees
2300
x2391
1936B
Pinball
binary search
,
data structures
,
implementation
,
math
,
two pointers
2000
x2369
534D
Handshakes
binary search
,
constructive algorithms
,
data structures
,
greedy
1900
x2367
1942D
Learning to Paint
binary search
,
data structures
,
dfs and similar
,
dp
,
greedy
,
implementation
,
sortings
2100
x2354
1706E
Qpwoeirut and Vertices
binary search
,
data structures
,
dfs and similar
,
divide and conquer
,
dsu
,
greedy
,
trees
2300
x2352
1251E2
Voting (Hard Version)
binary search
,
data structures
,
greedy
2400
x2352
762C
Two strings
binary search
,
hashing
,
strings
,
two pointers
2100
x2352
1710B
Rain
binary search
,
brute force
,
data structures
,
geometry
,
greedy
,
implementation
,
math
2100
x2348
846D
Monitor
binary search
,
data structures
1900
x2341
1641C
Anonymity Is Important
binary search
,
brute force
,
data structures
,
dsu
,
greedy
,
sortings
2200
x2315
653D
Delivery Bears
binary search
,
flows
,
graphs
2200
x2306
1371E2
Asterism (Hard Version)
binary search
,
combinatorics
,
dp
,
math
,
number theory
,
sortings
2300
x2292
1100E
Andrew and Taxi
binary search
,
dfs and similar
,
graphs
2200
x2285
1039B
Subway Pursuit
binary search
,
interactive
,
probabilities
2100
x2275
813E
Army Creation
binary search
,
data structures
2200
x2266
1619G
Unusual Minesweeper
binary search
,
dfs and similar
,
dsu
,
greedy
,
sortings
2000
x2258
985D
Sand Fortress
binary search
,
constructive algorithms
,
math
2100
x2253
468C
Hack it!
binary search
,
constructive algorithms
,
math
2500
x2235
1741F
Multi-Colored Segments
binary search
,
data structures
,
math
,
sortings
2000
x2212
56E
Domino Principle
binary search
,
data structures
,
sortings
2200
x2210
1399E2
Weights Division (hard version)
binary search
,
dfs and similar
,
greedy
,
sortings
,
trees
,
two pointers
2200
x2208
767D
Cartons of milk
binary search
,
data structures
,
greedy
,
sortings
,
two pointers
2100
x2191
1141G
Privatization of Roads in Treeland
binary search
,
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
trees
1900
x2183
925B
Resource Distribution
binary search
,
implementation
,
sortings
1700
x2174
613B
Skills
binary search
,
brute force
,
dp
,
greedy
,
sortings
,
two pointers
1900
x2171
1398E
Two Types of Spells
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
2200
x2170
484E
Sign on Fence
binary search
,
constructive algorithms
,
data structures
2500
x2161
1428F
Fruit Sequences
binary search
,
data structures
,
divide and conquer
,
dp
,
two pointers
2400
x2160
1592D
Hemose in ICPC ?
binary search
,
dfs and similar
,
implementation
,
interactive
,
math
,
number theory
,
trees
2300
x2156
1808D
Petya, Petya, Petr, and Palindromes
binary search
,
brute force
,
data structures
,
two pointers
2100
x2149
1201D
Treasure Hunting
binary search
,
dp
,
greedy
,
implementation
2100
x2149
1881G
Anya and the Mysterious String
binary search
,
data structures
2000
x2146
754D
Fedor and coupons
binary search
,
data structures
,
greedy
,
sortings
2100
x2132
222D
Olympiad
binary search
,
greedy
,
sortings
,
two pointers
1900
x2127
679B
Bear and Tower of Cubes
binary search
,
dp
,
greedy
2200
x2111
1436E
Complicated Computations
binary search
,
data structures
,
two pointers
2400
x2108
301B
Yaroslav and Time
binary search
,
graphs
,
shortest paths
2100
x2104
431D
Random Task
binary search
,
bitmasks
,
combinatorics
,
dp
,
math
2100
x2103
553B
Kyoya and Permutation
binary search
,
combinatorics
,
constructive algorithms
,
greedy
,
implementation
,
math
1900
x2094
1672E
notepad.exe
binary search
,
constructive algorithms
,
greedy
,
interactive
2200
x2090
386B
Fly, freebies, fly!
binary search
,
brute force
,
implementation
1400
x2083
1527E
Partition Game
binary search
,
data structures
,
divide and conquer
,
dp
2500
x2077
1837F
Editorial for Two
binary search
,
data structures
,
greedy
,
implementation
2400
x2056
896B
Ithea Plays With Chtholly
binary search
,
constructive algorithms
,
games
,
greedy
,
interactive
2000
x2047
1834E
MEX of LCM
binary search
,
data structures
,
implementation
,
math
,
number theory
2300
x2043
1166D
Cute Sequences
binary search
,
brute force
,
greedy
,
math
2200
x2042
1712E1
LCM Sum (easy version)
binary search
,
brute force
,
combinatorics
,
math
,
number theory
,
two pointers
2300
x2036
1801D
The way home
binary search
,
data structures
,
dp
,
graphs
,
greedy
,
shortest paths
,
sortings
2100
x2032
369E
Valera and Queries
binary search
,
data structures
2200
x2020
1165F2
Microtransactions (hard version)
binary search
,
greedy
,
implementation
2000
x2019
1181D
Irrigation
binary search
,
data structures
,
implementation
,
sortings
,
trees
,
two pointers
2200
x2018
21C
Stripe 2
binary search
,
dp
,
sortings
2000
x2007
540E
Infinite Inversions
binary search
,
data structures
,
implementation
,
sortings
,
trees
2100
x2005
1500B
Two chandeliers
binary search
,
brute force
,
chinese remainder theorem
,
math
,
number theory
2200
x1983
524C
The Art of Dealing with ATM
binary search
,
sortings
1900
x1979
1705E
Mark and Professor Koro
binary search
,
bitmasks
,
brute force
,
combinatorics
,
data structures
,
greedy
2300
x1977
377B
Preparing for the Contest
binary search
,
data structures
,
greedy
,
sortings
1900
x1971
875D
High Cry
binary search
,
bitmasks
,
combinatorics
,
data structures
,
divide and conquer
2200
x1970
1453E
Dog Snacks
binary search
,
dfs and similar
,
dp
,
greedy
,
trees
2300
x1964
1179C
Serge and Dining Room
binary search
,
data structures
,
graph matchings
,
greedy
,
implementation
,
math
,
trees
2200
x1946
1392F
Omkar and Landslide
binary search
,
constructive algorithms
,
data structures
,
greedy
,
math
2400
x1939
255D
Mr. Bender and Square
binary search
,
implementation
,
math
1800
x1929
1795E
Explosions?
binary search
,
data structures
,
dp
,
greedy
,
math
2200
x1907
85D
Sum of Medians
binary search
,
brute force
,
data structures
,
implementation
2300
x1905
1102F
Elongated Matrix
binary search
,
bitmasks
,
brute force
,
dp
,
graphs
2000
x1899
954G
Castle Defense
binary search
,
data structures
,
greedy
,
two pointers
2000
x1893
1019B
The hat
binary search
,
interactive
2000
x1891
883I
Photo Processing
binary search
,
dp
1900
x1889
818E
Card Game Again
binary search
,
data structures
,
number theory
,
two pointers
1900
x1871
333D
Characteristics of Rectangles
binary search
,
bitmasks
,
brute force
,
implementation
,
sortings
2100
x1844
1132D
Stressful Training
binary search
,
greedy
2300
x1814
954E
Water Taps
binary search
,
greedy
,
sortings
2000
x1798
51C
Three Base Stations
binary search
,
greedy
1800
x1798
1225E
Rock Is Push
binary search
,
dp
2200
x1785
549H
Degenerate Matrix
binary search
,
math
2100
x1785
1832D2
Red-Blue Operations (Hard Version)
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
2400
x1784
1550D
Excellent Arrays
binary search
,
combinatorics
,
constructive algorithms
,
implementation
,
math
,
sortings
,
two pointers
2300
x1779
1423B
Valuable Paper
binary search
,
flows
,
graph matchings
,
graphs
1900
x1764
1165F1
Microtransactions (easy version)
binary search
,
greedy
2000
x1763
1827B2
Range Sorting (Hard Version)
binary search
,
data structures
,
dp
,
greedy
2400
x1756
258C
Little Elephant and LCM
binary search
,
combinatorics
,
dp
,
math
2000
x1754
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