Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
177B2
Rectangular Game
number theory
1200
x2831
177B1
Rectangular Game
number theory
1000
x3995
177A2
Good Matrix Elements
implementation
800
x7068
177A1
Good Matrix Elements
implementation
800
x8198
176E
Archaeology
data structures
,
dfs and similar
,
trees
3100
x1029
176D
Hyper String
dp
2500
x303
176C
Playing with Superglue
combinatorics
,
constructive algorithms
2000
x464
176B
Word Cut
dp
1700
x1717
176A
Trading Business
greedy
,
sortings
1200
x1407
175F
Gnomes of Might and Magic
data structures
,
graphs
,
implementation
,
shortest paths
3000
x64
175E
Power Defence
brute force
,
dp
,
geometry
,
greedy
2600
x260
175D
Plane of Tanks: Duel
brute force
,
dp
,
math
,
probabilities
2400
x289
175C
Geometry Horse
greedy
,
implementation
,
sortings
,
two pointers
1600
x1288
175B
Plane of Tanks: Pro
implementation
1400
x1372
175A
Robot Bicorn Attack
brute force
,
implementation
1400
x2343
174C
Range Increments
data structures
,
greedy
1800
x1069
174B
File List
dp
,
greedy
,
implementation
1400
x2191
174A
Problem About Equation
math
1100
x2680
173E
Camping Groups
data structures
,
sortings
2600
x535
173D
Deputies
constructive algorithms
,
graphs
,
greedy
,
implementation
2500
x246
173C
Spiral Maximum
brute force
,
dp
1900
x958
173B
Chamber of Secrets
dfs and similar
,
shortest paths
1800
x2878
173A
Rock-Paper-Scissors
implementation
,
math
1300
x2204
172E
BHTML+BCSS
*special problem
,
dfs and similar
,
expression parsing
2200
x268
172D
Calendar Reform
*special problem
,
number theory
1500
x1382
172C
Bus
*special problem
,
implementation
,
sortings
1500
x1129
172B
Pseudorandom Sequence Period
*special problem
,
implementation
,
number theory
1200
x2691
172A
Phone Code
*special problem
,
brute force
,
implementation
800
x5905
171H
A polyline
*special problem
,
implementation
1700
x266
171G
Mysterious numbers - 2
*special problem
1600
x894
171F
ucyhf
*special problem
,
brute force
,
implementation
,
number theory
1600
x1248
171E
MYSTERIOUS LANGUAGE
*special problem
2000
x1403
171D
Broken checker
*special problem
,
brute force
1300
x2516
171C
A Piece of Cake
*special problem
,
implementation
2000
x1053
171B
Star
*special problem
,
combinatorics
1300
x3948
171A
Mysterious numbers - 1
*special problem
,
constructive algorithms
1200
x4362
169B
Replacing Digits
greedy
1100
x3195
169A
Chores
sortings
800
x6573
168B
Wizards and Minimal Spell
implementation
,
strings
1700
x1199
168A
Wizards and Demonstration
implementation
,
math
900
x10320
167E
Wizards and Bets
dfs and similar
,
graphs
,
math
,
matrices
2900
x546
167D
Wizards and Roads
data structures
,
divide and conquer
,
graph matchings
,
graphs
,
greedy
3000
x190
167C
Wizards and Numbers
games
,
math
2300
x657
167B
Wizards and Huge Prize
dp
,
math
,
probabilities
1800
x2093
167A
Wizards and Trolleybuses
implementation
,
math
1600
x2012
166E
Tetrahedron
dp
,
math
,
matrices
1500
x20023
166D
Shoe Store
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
2500
x346
166C
Median
greedy
,
math
,
sortings
1500
x6354
166B
Polygons
geometry
,
sortings
2100
x2161
166A
Rank List
binary search
,
implementation
,
sortings
1100
x16814
165E
Compatible Numbers
bitmasks
,
brute force
,
dfs and similar
,
dp
2200
x6215
165D
Beard Graph
data structures
,
dsu
,
trees
2100
x1589
165C
Another Problem on Strings
binary search
,
brute force
,
dp
,
math
,
strings
,
two pointers
1600
x11890
165B
Burning Midnight Oil
binary search
,
implementation
1500
x16590
165A
Supercentral Point
implementation
1000
x22644
164E
Polycarpus and Tasks
3100
x66
164D
Minimum Diameter
binary search
,
brute force
3100
x229
164C
Machine Programming
flows
,
graphs
2400
x875
164B
Ancient Berland Hieroglyphs
two pointers
2000
x450
164A
Variable, or There and Back Again
dfs and similar
,
graphs
1700
x978
163E
e-Government
data structures
,
dfs and similar
,
dp
,
strings
,
trees
2800
x1529
163D
Large Refrigerator
brute force
2900
x481
163C
Conveyor
sortings
,
two pointers
2100
x537
163B
Lemmings
binary search
2000
x1046
163A
Substring and Subsequence
dp
1700
x2620
162J
Brackets
*special problem
1800
x89
162I
Truncatable primes
*special problem
2000
x72
162H
Alternating case
*special problem
1800
x213
162G
Non-decimal sum
*special problem
2000
x56
162F
Factorial zeros
*special problem
1800
x195
162E
HQ9+
*special problem
1800
x174
162D
Remove digits
*special problem
1900
x225
162C
Prime factorization
*special problem
1800
x773
162B
Binary notation
*special problem
1800
x308
162A
Pentagonal numbers
*special problem
,
implementation
1100
x793
161E
Polycarpus the Safecracker
brute force
,
dp
2500
x462
161D
Distance in Tree
dfs and similar
,
dp
,
trees
1800
x13649
161C
Abracadabra
divide and conquer
2400
x638
161B
Discounts
constructive algorithms
,
greedy
,
sortings
1700
x1923
161A
Dress'em in Vests!
binary search
,
brute force
,
greedy
,
two pointers
1300
x4683
160E
Buses and People
binary search
,
data structures
,
sortings
2400
x576
160D
Edges in MST
dfs and similar
,
dsu
,
graphs
,
sortings
2300
x2367
160C
Find Pair
implementation
,
math
,
sortings
1700
x3384
160B
Unlucky Ticket
greedy
,
sortings
1100
x13594
160A
Twins
greedy
,
sortings
900
x111300
159E
Zebra Tower
*special problem
,
data structures
,
greedy
,
sortings
1700
x988
159D
Palindrome pairs
*special problem
,
brute force
,
dp
,
strings
1500
x4253
159C
String Manipulation 1.0
*special problem
,
binary search
,
brute force
,
data structures
,
strings
1400
x2921
159B
Matchmaker
*special problem
,
greedy
,
sortings
1100
x3680
159A
Friends or Not
*special problem
,
greedy
,
implementation
1400
x2456
158E
Phone Talks
*special problem
,
dp
,
sortings
1900
x1449
158D
Ice Sculptures
*special problem
,
brute force
,
number theory
1300
x6172
158C
Cd and pwd commands
*special problem
,
data structures
,
implementation
1400
x8902
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x82692
158A
Next Round
*special problem
,
implementation
800
x233567
157B
Trace
geometry
,
sortings
1000
x12869
157A
Game Outcome
brute force
800
x7420
156E
Mrs. Hudson's Pancakes
brute force
,
dp
3000
x160
156D
Clues
combinatorics
,
graphs
2500
x1476
156C
Cipher
combinatorics
,
dp
2000
x2293
←
1
2
...
86
87
88
89
90
...
95
96
→
→ Pay attention
Before contest
Codeforces Round 946 (Div. 3)
20:50:47
Register now »
→ Filter Problems
Difficulty:
—
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
Add tag
User lists
Name