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Problems
#
Name
1510K
King's Task
brute force
,
graphs
,
implementation
1200
x5289
1510J
Japanese Game
constructive algorithms
,
math
2700
x507
1510I
Is It Rated?
greedy
,
interactive
,
math
,
probabilities
2700
x452
1510H
Hard Optimization
dp
3200
x98
1510G
Guide
2100
x1260
1510F
Fiber Shape
2800
x58
1510E
Equilibrium Point /\textbackslash/\textbackslash
2700
x242
1510D
Digits
dp
,
math
,
number theory
2100
x1805
1510C
Cactus Not Enough
dfs and similar
,
graph matchings
,
graphs
2900
x206
1510B
Button Lock
flows
,
graph matchings
,
graphs
2600
x719
1510A
ASCII Automata Art
3100
x152
1509C
The Sports Festival
dp
,
greedy
1800
x11913
1509B
TMT Document
greedy
1100
x21173
1509A
Average Height
constructive algorithms
800
x25750
1508F
Optimal Encoding
brute force
,
data structures
3500
x118
1508E
Tree Calendar
brute force
,
constructive algorithms
,
data structures
,
dfs and similar
,
sortings
,
trees
3100
x329
1508D
Swap Pass
constructive algorithms
,
geometry
,
sortings
3000
x532
1508C
Complete the MST
bitmasks
,
brute force
,
data structures
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
trees
2500
x1431
1508B
Almost Sorted
binary search
,
combinatorics
,
constructive algorithms
,
implementation
1800
x3856
1508A
Binary Literature
constructive algorithms
,
greedy
,
implementation
,
strings
,
two pointers
1900
x6037
1506G
Maximize the Remaining String
brute force
,
data structures
,
dp
,
greedy
,
strings
2000
x4115
1506F
Triangular Paths
constructive algorithms
,
graphs
,
math
,
shortest paths
,
sortings
2000
x3115
1506E
Restoring the Permutation
constructive algorithms
,
implementation
1500
x12667
1506D
Epic Transformation
constructive algorithms
,
data structures
,
greedy
1400
x20881
1506C
Double-ended Strings
brute force
,
implementation
,
strings
1000
x23613
1506B
Partial Replacement
greedy
,
implementation
1100
x19945
1506A
Strange Table
math
800
x30168
1505I
Mysterious language again, seriously?
*special problem
2200
x542
1505H
L BREAK into program
*special problem
2500
x488
1505G
Encoded message
*special problem
,
implementation
2600
x295
1505F
Math
*special problem
,
math
2200
x1476
1505E
Cakewalk
*special problem
,
greedy
,
implementation
,
shortest paths
1800
x1728
1505D
Xenolith? Hippodrome?
*special problem
,
number theory
1800
x742
1505C
Fibonacci Words
*special problem
,
implementation
1400
x6314
1505B
DMCA
*special problem
,
implementation
,
number theory
1600
x6019
1505A
Is it rated - 2
*special problem
,
implementation
,
interactive
900
x14063
1504B
Flip the Bits
constructive algorithms
,
greedy
,
implementation
,
math
1200
x17457
1504A
Déjà Vu
constructive algorithms
,
strings
800
x21444
1503F
Balance the Cards
constructive algorithms
,
data structures
,
divide and conquer
,
geometry
,
graphs
,
implementation
3500
x136
1503E
2-Coloring
combinatorics
,
dp
,
math
3100
x597
1503D
Flip the Cards
2-sat
,
constructive algorithms
,
data structures
,
greedy
,
sortings
,
two pointers
2600
x970
1503C
Travelling Salesman Problem
binary search
,
data structures
,
dp
,
greedy
,
shortest paths
,
sortings
,
two pointers
2200
x3212
1503B
3-Coloring
constructive algorithms
,
games
,
interactive
1700
x6857
1503A
Balance the Bits
constructive algorithms
,
greedy
1600
x13045
1501B
Napoleon Cake
dp
,
implementation
,
sortings
900
x18550
1501A
Alexey and Train
implementation
800
x11540
1500F
Cupboards Jumps
dp
3500
x331
1500E
Subset Trick
binary search
,
data structures
3300
x213
1500D
Tiles for Bathroom
data structures
,
sortings
,
two pointers
2900
x418
1500C
Matrix Sorting
bitmasks
,
brute force
,
constructive algorithms
,
greedy
,
two pointers
2600
x769
1500B
Two chandeliers
binary search
,
brute force
,
chinese remainder theorem
,
math
,
number theory
2200
x1997
1500A
Going Home
brute force
,
hashing
,
implementation
,
math
1800
x8583
1499G
Graph Coloring
data structures
,
graphs
,
interactive
3100
x188
1499F
Diameter Cuts
combinatorics
,
dfs and similar
,
dp
,
trees
2400
x1254
1499E
Chaotic Merge
combinatorics
,
dp
,
math
,
strings
2400
x1414
1499D
The Number of Pairs
dp
,
math
,
number theory
2100
x5519
1499C
Minimum Grid Path
brute force
,
data structures
,
greedy
,
math
1500
x12378
1499B
Binary Removals
brute force
,
dp
,
greedy
,
implementation
1000
x20335
1499A
Domino on Windowsill
combinatorics
,
constructive algorithms
,
math
800
x21037
1498F
Christmas Game
bitmasks
,
data structures
,
dfs and similar
,
dp
,
games
,
math
,
trees
2500
x857
1498E
Two Houses
brute force
,
graphs
,
greedy
,
interactive
,
sortings
2200
x1845
1498D
Bananas in a Microwave
dfs and similar
,
dp
,
graphs
,
implementation
2200
x2253
1498C
Planar Reflections
brute force
,
data structures
,
dp
1600
x9277
1498B
Box Fitting
binary search
,
bitmasks
,
data structures
,
greedy
1300
x16231
1498A
GCD Sum
brute force
,
math
800
x22710
1497E2
Square-free division (hard version)
data structures
,
dp
,
greedy
,
math
,
number theory
,
two pointers
2500
x1571
1497E1
Square-Free Division (easy version)
data structures
,
dp
,
greedy
,
math
,
number theory
,
two pointers
1700
x8067
1497D
Genius
bitmasks
,
dp
,
graphs
,
number theory
2500
x1491
1497C2
k-LCM (hard version)
constructive algorithms
,
math
1600
x16554
1497C1
k-LCM (easy version)
constructive algorithms
,
math
1200
x24718
1497B
M-arrays
constructive algorithms
,
greedy
,
math
1200
x18725
1497A
Meximization
brute force
,
data structures
,
greedy
,
sortings
800
x23942
1496B
Max and Mex
math
1100
x17228
1496A
Split it!
brute force
,
constructive algorithms
,
greedy
,
strings
900
x20342
1495F
Squares
constructive algorithms
,
data structures
,
dp
,
graphs
,
trees
3300
x282
1495E
Qingshan and Daniel
brute force
,
data structures
,
greedy
,
implementation
3200
x407
1495D
BFS Trees
combinatorics
,
dfs and similar
,
graphs
,
math
,
shortest paths
,
trees
2600
x1196
1495C
Garden of the Sun
constructive algorithms
,
graphs
2300
x2509
1495B
Let's Go Hiking
games
,
greedy
1900
x5857
1495A
Diamond Miner
geometry
,
greedy
,
math
,
sortings
1200
x16754
1494F
Delete The Edges
brute force
,
constructive algorithms
,
dfs and similar
,
graphs
,
implementation
2900
x332
1494E
A-Z Graph
constructive algorithms
,
data structures
,
graphs
,
hashing
2400
x1667
1494D
Dogeforces
constructive algorithms
,
data structures
,
dfs and similar
,
divide and conquer
,
dsu
,
greedy
,
sortings
,
trees
2300
x2505
1494C
1D Sokoban
binary search
,
dp
,
greedy
,
implementation
,
two pointers
1900
x5249
1494B
Berland Crossword
bitmasks
,
brute force
,
greedy
,
implementation
1400
x14013
1494A
ABC String
bitmasks
,
brute force
,
implementation
900
x20468
1493F
Enchanted Matrix
bitmasks
,
interactive
,
number theory
2600
x378
1493E
Enormous XOR
bitmasks
,
constructive algorithms
,
greedy
,
math
,
strings
,
two pointers
2600
x869
1493D
GCD of an Array
brute force
,
data structures
,
hashing
,
implementation
,
math
,
number theory
,
sortings
,
two pointers
2100
x4770
1493C
K-beautiful Strings
binary search
,
brute force
,
constructive algorithms
,
greedy
,
strings
2000
x4476
1493B
Planet Lapituletti
brute force
,
implementation
1300
x11641
1493A
Anti-knapsack
constructive algorithms
,
greedy
800
x19121
1492E
Almost Fault-Tolerant Database
brute force
,
constructive algorithms
,
dfs and similar
,
greedy
,
implementation
2500
x1167
1492D
Genius's Gambit
bitmasks
,
constructive algorithms
,
greedy
,
math
1900
x5953
1492C
Maximum width
binary search
,
data structures
,
dp
,
greedy
,
two pointers
1500
x15649
1492B
Card Deck
data structures
,
greedy
,
math
1100
x18163
1492A
Three swimmers
math
800
x22465
1491I
Ruler Of The Zoo
brute force
,
data structures
3500
x75
1491H
Yuezheng Ling and Dynamic Tree
data structures
,
trees
3400
x768
1491G
Switch and Flip
constructive algorithms
,
graphs
,
math
2800
x732
←
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Codeforces Round 950 (Div. 3)
34:39:29
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