Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rayan
→ Pay attention
Before contest
Codeforces Round 1000 (Div. 2)
34:32:32
Register now »
*has extra registration
→ 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
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
717G
Underfail
flows
2400
x678
717F
Heroes of Making Magic III
data structures
2600
x337
717E
Paint it really, really dark gray
dfs and similar
1900
x1487
717D
Dexterina’s Lab
games
,
matrices
,
probabilities
1900
x1453
717C
Potions Homework
implementation
,
sortings
1200
x4042
717B
R3D3’s Summer Adventure
dp
,
greedy
2700
x162
717A
Festival Organization
combinatorics
,
math
,
number theory
2900
x378
716B
Complete the Word
greedy
,
two pointers
1300
x12297
716A
Crazy Computer
implementation
800
x22786
715E
Complete the Permutations
combinatorics
,
fft
,
graphs
,
math
3400
x361
715D
Create a Maze
constructive algorithms
3100
x316
715C
Digit Tree
dfs and similar
,
divide and conquer
,
dsu
,
trees
2700
x2201
715B
Complete The Graph
binary search
,
constructive algorithms
,
graphs
,
shortest paths
2300
x2955
715A
Plus and Square Root
constructive algorithms
,
math
1600
x5650
714B
Filya and Homework
implementation
,
sortings
1200
x14666
714A
Meeting of Old Friends
implementation
,
math
1100
x10822
713E
Sonya Partymaker
binary search
,
dp
3300
x358
713D
Animals and Puzzle
binary search
,
data structures
2700
x1176
713C
Sonya and Problem Wihtout a Legend
dp
,
sortings
2300
x5629
713B
Searching Rectangles
binary search
,
constructive algorithms
,
interactive
2200
x1468
713A
Sonya and Queries
data structures
,
implementation
1400
x8531
712E
Memory and Casinos
data structures
,
math
,
probabilities
2500
x625
712D
Memory and Scores
combinatorics
,
dp
,
math
2200
x1861
712C
Memory and De-Evolution
greedy
,
math
1600
x5954
712B
Memory and Trident
implementation
,
strings
1100
x9816
712A
Memory and Crow
implementation
,
math
800
x11991
711E
ZS and The Birthday Paradox
math
,
number theory
,
probabilities
2300
x1285
711D
Directed Roads
combinatorics
,
dfs and similar
,
graphs
,
math
1900
x4542
711C
Coloring Trees
dp
1700
x8404
711B
Chris and Magic Square
constructive algorithms
,
implementation
1400
x8439
711A
Bus to Udayland
brute force
,
implementation
800
x29752
710F
String Set Queries
brute force
,
data structures
,
hashing
,
interactive
,
string suffix structures
,
strings
2400
x1962
710E
Generate a String
dfs and similar
,
dp
2000
x5280
710D
Two Arithmetic Progressions
math
,
number theory
2500
x1387
710C
Magic Odd Square
constructive algorithms
,
math
1500
x5175
710B
Optimal Point on a Line
brute force
,
sortings
1400
x8850
710A
King Moves
implementation
800
x13950
709B
Checkpoints
greedy
,
implementation
,
sortings
1500
x4770
709A
Juicer
implementation
900
x33183
708E
Student's Camp
dp
,
math
3100
x1029
708D
Incorrect Flow
flows
2900
x795
708C
Centroids
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
2300
x3451
708B
Recover the String
constructive algorithms
,
greedy
,
implementation
,
math
1900
x3276
708A
Letters Cyclic Shift
constructive algorithms
,
greedy
,
implementation
,
strings
1200
x9122
707E
Garlands
data structures
2400
x1240
707D
Persistent Bookcase
bitmasks
,
data structures
,
dfs and similar
,
implementation
2200
x2747
707C
Pythagorean Triples
math
,
number theory
1500
x12792
707B
Bakery
graphs
1300
x13022
707A
Brain's Photos
implementation
800
x50316
706E
Working routine
data structures
,
implementation
2500
x1198
706D
Vasiliy's Multiset
binary search
,
bitmasks
,
data structures
,
trees
1800
x10405
706C
Hard problem
dp
,
strings
1600
x16737
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x66467
706A
Beru-taxi
brute force
,
geometry
,
implementation
900
x14630
705B
Spider Man
games
,
math
1100
x9219
705A
Hulk
implementation
800
x111300
704E
Iron Man
data structures
,
geometry
,
trees
3300
x291
704D
Captain America
flows
,
greedy
3100
x814
704C
Black Widow
dp
,
graphs
,
implementation
,
math
2900
x475
704B
Ant Man
dp
,
graphs
,
greedy
2500
x1927
704A
Thor
brute force
,
data structures
,
implementation
1600
x9464
703E
Mishka and Divisors
dp
,
number theory
2600
x607
703D
Mishka and Interesting sum
data structures
2100
x3674
703C
Chris and Road
geometry
,
implementation
2100
x1868
703B
Mishka and trip
implementation
,
math
1400
x5713
703A
Mishka and Game
implementation
800
x58273
702F
T-Shirts
data structures
2800
x1537
702E
Analysis of Pathes in Functional Graph
data structures
,
graphs
2100
x2645
702D
Road to Post Office
math
1900
x3405
702C
Cellular Network
binary search
,
implementation
,
two pointers
1500
x16432
702B
Powers of Two
brute force
,
data structures
,
implementation
,
math
1500
x12195
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x46525
701C
They Are Everywhere
binary search
,
strings
,
two pointers
1500
x15896
701B
Cells Not Under Attack
data structures
,
math
1200
x11846
701A
Cards
greedy
,
implementation
800
x19851
700E
Cool Slogans
string suffix structures
,
strings
3300
x1211
700D
Huffman Coding on Segment
data structures
,
greedy
3100
x468
700C
Break Up
dfs and similar
,
graphs
2600
x1329
700B
Connecting Universities
dfs and similar
,
dp
,
graphs
,
trees
1800
x4115
700A
As Fast As Possible
binary search
,
math
1900
x3205
699B
One Bomb
implementation
1400
x7631
699A
Launch of Collider
implementation
1000
x16222
698F
Coprime Permutation
combinatorics
,
number theory
3000
x441
698E
Cron
2800
x119
698D
Limak and Shooting Points
brute force
,
geometry
,
math
2600
x552
698C
LRU
bitmasks
,
dp
,
math
,
probabilities
2400
x1350
698B
Fix a Tree
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
trees
1700
x5816
698A
Vacations
dp
1400
x31389
697B
Barnicle
brute force
,
implementation
,
math
,
strings
1400
x5789
697A
Pineapple Incident
implementation
,
math
900
x12904
696F
...Dary!
binary search
,
geometry
,
two pointers
3300
x129
696E
...Wait for it...
data structures
,
dsu
,
trees
3000
x566
696D
Legen...
data structures
,
dp
,
matrices
,
strings
2500
x1344
696C
PLEASE
combinatorics
,
dp
,
implementation
,
math
,
matrices
2000
x2107
696B
Puzzles
dfs and similar
,
math
,
probabilities
,
trees
1700
x3552
696A
Lorenzo Von Matterhorn
brute force
,
data structures
,
implementation
,
trees
1500
x6160
691F
Couple Cover
brute force
,
dp
,
number theory
2200
x1319
691E
Xor-sequences
matrices
1900
x2599
691D
Swaps in Permutation
dfs and similar
,
dsu
,
math
1700
x5608
691C
Exponential notation
implementation
,
strings
1800
x2637
←
1
2
...
70
71
72
73
74
...
101
102
→
User lists
Name