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DIV.2

Div. 2, Problem C

List of random Codeforces problems, all of them are Div. 2 C problems. The problems are sorted, the most solved problem comes first. This is a good practice for whoever can solve almost all Div. 2 A and B problems, but might have some difficulties while solving the C problems.

PROBLEM TYPE C
PROBLEMS 100
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COMPLETION 0 / 100
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01 Given Length and Sum of Digits...
CF-489/C
1400
LVL 1
dpgreedyimplementation
02 Number of Ways
CF-466/C
1700
LVL 4
binary searchbrute forcedata structures +2
03 Team
CF-401/C
1400
LVL 4
constructive algorithmsgreedyimplementation
04 Exams
CF-479/C
1400
LVL 4
greedysortings
05 Boredom
CF-455/A
1500
LVL 4
dp
06 Table Decorations
CF-478/C
1800
LVL 4
greedy
07 Beautiful Sets of Points
CF-268/C
1500
LVL 4
constructive algorithmsimplementation
08 k-Tree
CF-431/C
1600
LVL 4
dpimplementationtrees
09 Valera and Tubes
CF-441/C
1500
LVL 4
constructive algorithmsdfs and similarimplementation
10 Palindrome Transformation
CF-486/C
1700
LVL 4
brute forcegreedyimplementation
11 Fixing Typos
CF-363/C
1400
LVL 4
greedyimplementation
12 Hacking Cypher
CF-490/C
1700
LVL 2
brute forcemathnumber theory +1
13 Gargari and Bishops
CF-463/C
1900
LVL 5
greedyhashingimplementation
14 Pocket Book
CF-152/C
1400
LVL 4
combinatorics
15 Lucky Sum of Digits
CF-109/A
1000
LVL 3
brute forceimplementation
16 Arithmetic Progression
CF-382/C
1700
LVL 4
implementationsortings
17 Fox and Box Accumulation
CF-388/A
1400
LVL 3
greedysortings
18 Hexadecimal's Numbers
CF-9/C
1200
LVL 2
brute forceimplementationmath
19 Xenia and Weights
CF-339/C
1700
LVL 4
constructive algorithmsdfs and similardp +3
20 Bombs
CF-350/C
1600
LVL 4
greedyimplementationsortings
21 Pashmak and Buses
CF-459/C
1900
LVL 5
combinatoricsconstructive algorithmsmath
22 Little Elephant and Problem
CF-220/A
1300
LVL 4
implementationsortings
23 Maze
CF-377/A
1600
LVL 4
dfs and similar
24 Ice Skating
CF-217/A
1200
LVL 3
brute forcedfs and similardsu +1
25 Hamburgers
CF-371/C
1600
LVL 4
binary searchbrute force
26 Bear and Prime Numbers
CF-385/C
1700
LVL 5
binary searchbrute forcedata structures +4
27 History
CF-137/C
1500
LVL 4
sortings
28 Checkposts
CF-427/C
1700
LVL 4
dfs and similargraphstwo pointers
29 Mashmokh and Numbers
CF-414/A
1500
LVL 3
constructive algorithmsnumber theory
30 Ladder
CF-279/C
1700
LVL 4
dpimplementationtwo pointers
31 Escape from Stones
CF-264/A
1200
LVL 3
constructive algorithmsdata structuresimplementation +1
32 Division into Teams
CF-149/C
1500
LVL 4
greedymathsortings
33 Barcode
CF-225/C
1700
LVL 4
dpmatrices
34 Stripe
CF-18/C
1200
LVL 3
data structuresimplementation
35 Mafia
CF-348/A
1600
LVL 4
binary searchmathsortings
36 Cows and Sequence
CF-283/A
1600
LVL 4
constructive algorithmsdata structuresimplementation
37 To Add or Not to Add
CF-231/C
1600
LVL 4
binary searchsortingstwo pointers
38 Xor-tree
CF-429/A
1300
LVL 3
dfs and similartrees
39 LCM Challenge
CF-235/A
1600
LVL 4
number theory
40 Rational Resistance
CF-343/A
1600
LVL 4
mathnumber theory
41 Points on Line
CF-251/A
1300
LVL 3
binary searchcombinatoricstwo pointers
42 No to Palindromes!
CF-464/A
1700
LVL 4
greedystrings
43 Magic Formulas
CF-424/C
1600
LVL 4
math
44 Beautiful Numbers
CF-300/C
1800
LVL 4
brute forcecombinatorics
45 Quiz
CF-337/C
1600
LVL 4
binary searchgreedymath +2
46 Replacement
CF-135/A
1300
LVL 3
greedyimplementationsortings
47 Vasya and Robot
CF-354/A
1500
LVL 4
brute forcegreedymath
48 Captain Marmot
CF-474/C
2000
LVL 4
brute forcegeometry
49 Win or Freeze
CF-150/A
1400
LVL 4
gamesmathnumber theory
50 Matrix
CF-364/A
1600
LVL 4
combinatoricsdata structuresimplementation
51 Little Frog
CF-53/C
1200
LVL 2
constructive algorithms
52 Lucky Sum
CF-121/A
1100
LVL 3
implementation
53 Fight the Monster
CF-487/A
1800
LVL 4
binary searchbrute forceimplementation
54 Triangle
CF-407/A
1600
LVL 4
brute forcegeometryimplementation +1
55 View Angle
CF-257/C
1800
LVL 4
brute forcegeometrymath
56 King's Path
CF-242/C
1800
LVL 4
dfs and similargraphshashing +1
57 Round Table Knights
CF-71/C
1600
LVL 4
dpmathnumber theory
58 Purification
CF-329/A
1500
LVL 4
constructive algorithmsgreedy
59 Maxim and Discounts
CF-261/A
1400
LVL 3
greedysortings
60 The Closest Pair
CF-311/A
1300
LVL 3
constructive algorithmsimplementation
61 Divisible by Seven
CF-375/A
1600
LVL 4
mathnumber theory
62 Hometask
CF-154/A
1600
LVL 4
greedy
63 Little Elephant and Interval
CF-204/A
1500
LVL 4
binary searchcombinatoricsdp
64 Dorm Water Supply
CF-107/A
1400
LVL 3
dfs and similargraphs
65 Shaass and Lights
CF-294/C
1900
LVL 5
combinatoricsnumber theory
66 Prime Number
CF-359/C
1900
LVL 5
mathnumber theory
67 The Brand New Function
CF-243/A
1600
LVL 4
bitmasks
68 About Bacteria
CF-198/A
1700
LVL 4
implementationmath
69 Malek Dance Club
CF-319/A
1600
LVL 4
combinatoricsmath
70 Dima and Containers
CF-358/C
2000
LVL 5
constructive algorithmsgreedyimplementation
71 Trains
CF-87/A
1500
LVL 4
implementationmath
72 Almost Arithmetical Progression
CF-255/C
1500
LVL 4
brute forcedp
73 Newspaper Headline
CF-91/A
1500
LVL 4
greedystrings
74 Inna and Dima
CF-374/C
1900
LVL 4
dfs and similardpgraphs +1
75 Hiring Staff
CF-216/C
1800
LVL 5
greedy
76 STL
CF-190/C
1500
LVL 4
dfs and similar
77 Prime Permutation
CF-123/A
1300
LVL 4
implementationnumber theorystrings
78 Four Segments
CF-14/C
1700
LVL 5
brute forceconstructive algorithmsgeometry +2
79 Fire Again
CF-35/C
1500
LVL 4
brute forcedfs and similarshortest paths
80 Below the Diagonal
CF-266/C
2100
LVL 6
constructive algorithmsgreedymath
81 Mail Stamps
CF-29/C
1700
LVL 4
data structuresdfs and similargraphs +1
82 Grammar Lessons
CF-113/A
1600
LVL 4
implementationstrings
83 Bracket Sequence
CF-223/A
1700
LVL 4
data structuresexpression parsingimplementation
84 Heroes
CF-77/A
1400
LVL 4
brute forceimplementation
85 Literature Lesson
CF-138/A
1600
LVL 4
implementation
86 Reducing Fractions
CF-222/C
1800
LVL 5
implementationmathnumber theory +1
87 Game
CF-213/A
1700
LVL 4
dfs and similargreedy
88 Cutting Figure
CF-193/A
1700
LVL 4
constructive algorithmsgraphstrees
89 Trees
CF-58/C
1800
LVL 4
brute force
90 Hockey
CF-95/A
1600
LVL 4
implementationstrings
91 Schedule
CF-31/C
1700
LVL 4
implementation
92 Rectangle Puzzle
CF-280/A
2000
LVL 5
geometry
93 Disposition
CF-49/C
1700
LVL 4
constructive algorithmsmath
94 Flea
CF-32/C
1700
LVL 4
math
95 Help Victoria the Wise
CF-98/A
1700
LVL 4
brute forceimplementation
96 Corporation Mail
CF-56/C
1700
LVL 4
data structuresexpression parsingimplementation
97 Optimal Sum
CF-182/C
2000
LVL 5
data structuresgreedy
98 On Number of Decompositions into Multipliers
CF-396/A
—
LVL 7
combinatoricsmathnumber theory
99 Blocked Points
CF-392/A
—
LVL 7
math
100 Crossword
CF-47/C
2000
LVL 5
implementation
ANALYTICS

Quick Stats

≤ SPECIALIST
39
PROBLEMS
EXPERT
50
PROBLEMS
CANDIDATE MASTER
10
PROBLEMS
≥ MASTER
1
PROBLEMS