Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 941 (Div. 1)
3 days
Register now »
*has extra registration
Before contest
Codeforces Round 941 (Div. 2)
3 days
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
1628F
Spaceship Crisis Management
binary search
,
data structures
,
geometry
,
sortings
3500
x84
958D2
Hyperspace Jump (hard)
2700
x84
901E
Cyclic Cipher
fft
,
math
3300
x84
65E
Harry Potter and Moving Staircases
dfs and similar
,
implementation
2900
x84
64I
Sort the Table
*special problem
,
sortings
2400
x84
1906D
Spaceship Exploration
binary search
,
geometry
2800
x85
1677F
Tokitsukaze and Gems
dp
,
math
3500
x85
1428H
Rotary Laser Lock
binary search
,
interactive
3500
x85
28E
DravDe saves the world
geometry
,
math
2800
x85
1781H2
Window Signals (hard version)
3500
x86
1609H
Pushing Robots
3500
x86
1533G
Biome Map
*special problem
,
constructive algorithms
,
dfs and similar
,
graphs
x86
1078E
Negative Time Summation
constructive algorithms
3400
x86
1218G
Alpha planetary system
constructive algorithms
,
graphs
,
shortest paths
3000
x87
1190F
Tokitsukaze and Powers
number theory
,
probabilities
3400
x87
730F
Ber Patio
3100
x87
1770H
Koxia, Mahiru and Winter Festival
constructive algorithms
3500
x88
1746G
Olympiad Training
binary search
,
data structures
,
dp
,
flows
,
geometry
,
implementation
,
sortings
3500
x88
1322F
Assigning Fares
dp
,
trees
3500
x88
1090H
Linearization
graphs
2900
x88
641G
Little Artem and Graph
2300
x88
398E
Sorting Permutations
x88
162J
Brackets
*special problem
1800
x88
154E
Martian Colony
geometry
3000
x88
756F
Long number
expression parsing
,
math
,
number theory
3400
x89
1302D
Dijkstra
x90
1071E
Rain Protection
binary search
,
geometry
3500
x90
955E
Icicles
2900
x90
690B3
Recover Polygon (hard)
data structures
2600
x90
470G
Hamming Distance
*special problem
2300
x90
1667F
Yin Yang
implementation
3500
x91
1275F
Шардирование постов
*special problem
,
binary search
,
interactive
x91
187E
Heaven Tour
data structures
,
greedy
2900
x91
1097H
Mateusz and an Infinite Sequence
bitmasks
,
brute force
,
dp
,
strings
3400
x92
1045F
Shady Lady
geometry
,
math
3400
x92
730K
Roads Orientation Problem
graphs
3200
x92
1936E
Yet Yet Another Permutation Problem
divide and conquer
,
fft
,
math
3400
x93
1656I
Neighbour Ordering
constructive algorithms
,
graphs
3500
x93
207D7
The Beaver's Problem - 3
1600
x93
119E
Alternative Reality
geometry
2400
x93
1641F
Covering Circle
geometry
3500
x94
925F
Parametric Circulation
binary search
,
flows
3100
x94
89E
Fire and Ice
greedy
2900
x94
1773J
Jumbled Trees
constructive algorithms
,
math
2900
x95
1761G
Centroid Guess
interactive
,
probabilities
,
trees
3500
x95
1510H
Hard Optimization
dp
3200
x95
683H
Exchange of Books
*special problem
1900
x95
1704G
Mio and Lucky Array
constructive algorithms
,
fft
,
math
,
strings
3500
x96
470F
Pairwise Sums
*special problem
2300
x96
128E
Birthday
geometry
,
math
2900
x96
1852F
Panda Meetups
data structures
,
dp
,
flows
3500
x97
1762G
Unequal Adjacent Elements
constructive algorithms
,
sortings
3100
x97
1081H
Palindromic Magic
data structures
,
hashing
,
strings
3500
x97
720C
Homework
constructive algorithms
3100
x97
530F
Jumping frogs
*special problem
2100
x97
1540E
Tasty Dishes
math
,
matrices
3500
x98
1089D
Distance Sum
graphs
3100
x98
109E
Lucky Interval
brute force
,
math
2700
x98
1666A
Admissible Map
3300
x99
1266H
Red-Blue Graph
dp
,
graphs
,
math
,
matrices
,
meet-in-the-middle
3400
x99
207C1
Game with Two Trees
2100
x99
1381E
Origami
geometry
,
math
,
sortings
3300
x100
774I
Composing Of String
*special problem
,
dp
2300
x100
198D
Cube Snake
constructive algorithms
2700
x100
1423I
Lookup Tables
bitmasks
3000
x101
1357D3
Quantum Classification - Dataset 5
x101
1267H
Help BerLine
constructive algorithms
3200
x101
856F
To Play or not to Play
greedy
3000
x101
207D2
The Beaver's Problem - 3
2000
x101
1718E
Impressionism
constructive algorithms
,
graphs
,
implementation
,
math
3500
x102
1685D2
Permutation Weight (Hard Version)
constructive algorithms
,
greedy
3500
x102
1648F
Two Avenues
data structures
,
dfs and similar
,
graphs
3500
x102
1545F
AquaMoon and Potatoes
brute force
,
data structures
,
dp
3500
x102
1402B
Roads
*special problem
,
geometry
,
sortings
2900
x102
1184D2
Parallel Universes (Hard)
math
,
matrices
3100
x102
391F2
Stock Trading
greedy
x102
1090G
Combostone
games
,
implementation
2500
x103
649E
Автобус
binary search
,
data structures
,
greedy
,
sortings
2100
x103
457F
An easy problem about trees
dp
,
games
,
greedy
,
trees
3200
x103
185E
Soap Time! - 2
binary search
,
data structures
3000
x103
1912F
Fugitive Frenzy
math
,
probabilities
3100
x104
1876F
Indefinite Clownfish
binary search
,
graphs
3500
x104
1740I
Arranging Crystal Balls
data structures
,
divide and conquer
,
divide and conquer
,
dp
,
geometry
,
graphs
,
number theory
3500
x104
774F
Pens And Days Of Week
*special problem
,
binary search
,
number theory
2700
x104
391F3
Stock Trading
x104
1827F
Copium Permutation
constructive algorithms
,
data structures
,
greedy
3500
x105
1089H
Harder Satisfiability
2-sat
,
dfs and similar
,
graphs
3400
x105
1218A
BubbleReactor
dp
,
graphs
2800
x106
1842I
Tenzing and Necklace
divide and conquer
,
dp
,
greedy
3500
x107
1575F
Finding Expected Value
math
2900
x107
1349F2
Slime and Sequences (Hard Version)
dp
,
fft
,
math
3500
x107
799G
Cut the pie
binary search
,
data structures
,
geometry
3500
x107
269E
String Theory
geometry
,
math
,
strings
3100
x107
1737G
Ela Takes Dancing Class
binary search
,
data structures
3500
x108
1621I
Two Sequences
data structures
,
hashing
,
string suffix structures
3500
x108
1357D2
Quantum Classification - Dataset 4
x108
1305H
Kuroni the Private Tutor
binary search
,
greedy
3500
x108
1218H
Function Composition
dfs and similar
2900
x108
46G
Emperor's Problem
geometry
2500
x108
1566H
Xor-quiz
constructive algorithms
,
dp
,
interactive
,
math
,
number theory
3200
x109
←
1
2
3
4
5
...
94
95
→
User lists
Name