| 864-D |
Make a Permutation!
|
greedy
implementation
math
|
1500
|
| 864-C |
Bus
|
greedy
implementation
math
|
1500
|
| 864-B |
Polycarp and Letters
|
brute force
implementation
strings
|
1000
|
| 864-A |
Fair Game
|
implementation
sortings
|
1000
|
| 863-G |
Graphic Settings
|
|
3200
|
| 863-F |
Almost Permutation
|
flows
|
2200
|
| 863-E |
Turn Off The TV
|
data structures
sortings
|
2000
|
| 863-D |
Yet Another Array Queries Problem
|
data structures
implementation
|
1800
|
| 863-C |
1-2-3
|
graphs
implementation
|
1800
|
| 863-B |
Kayaking
|
brute force
greedy
sortings
|
1500
|
| 863-A |
Quasi-palindrome
|
brute force
implementation
|
900
|
| 862-F |
Mahmoud and Ehab and the final stage
|
data structures
strings
|
2900
|
| 862-E |
Mahmoud and Ehab and the function
|
binary search
data structures
sortings
|
2100
|
| 862-D |
Mahmoud and Ehab and the binary string
|
binary search
divide and conquer
interactive
|
2000
|
| 862-C |
Mahmoud and Ehab and the xor
|
constructive algorithms
|
1900
|
| 862-B |
Mahmoud and Ehab and the bipartiteness
|
dfs and similar
graphs
trees
|
1300
|
| 862-A |
Mahmoud and Ehab and the MEX
|
greedy
implementation
|
1000
|
| 860-E |
Arkady and a Nobody-men
|
data structures
dfs and similar
trees
|
2700
|
| 859-G |
Circle of Numbers
|
math
|
3000
|
| 859-F |
Ordering T-Shirts
|
greedy
|
2800
|
| 859-E |
Desk Disorder
|
combinatorics
dfs and similar
dsu
+2
|
2100
|
| 859-D |
Third Month Insanity
|
dp
probabilities
trees
|
2100
|
| 859-C |
Pie Rules
|
dp
games
|
1500
|
| 859-B |
Lazy Security Guard
|
brute force
geometry
math
|
1000
|
| 859-A |
Declined Finalists
|
greedy
implementation
|
800
|
| 858-F |
Wizard's Tour
|
constructive algorithms
dfs and similar
graphs
|
2300
|
| 858-E |
Tests Renumeration
|
greedy
implementation
|
2200
|
| 858-D |
Polycarp's phone book
|
data structures
implementation
sortings
|
1600
|
| 858-C |
Did you mean...
|
dp
greedy
implementation
|
1500
|
| 858-B |
Which floor?
|
brute force
implementation
|
1500
|
| 858-A |
k-rounding
|
brute force
math
number theory
|
1100
|
| 856-F |
To Play or not to Play
|
greedy
|
3000
|
| 856-E |
Satellites
|
|
3100
|
| 856-D |
Masha and Cactus
|
dp
trees
|
2400
|
| 856-C |
Eleventh Birthday
|
combinatorics
dp
math
|
2400
|
| 856-B |
Similar Words
|
dp
hashing
strings
+1
|
2300
|
| 856-A |
Set Theory
|
brute force
constructive algorithms
|
1600
|
| 855-G |
Harry Vs Voldemort
|
dfs and similar
dp
graphs
+1
|
3300
|
| 855-F |
Nagini
|
binary search
data structures
|
3100
|
| 855-E |
Salazar Slytherin's Locket
|
bitmasks
dp
|
2200
|
| 855-D |
Rowena Ravenclaw's Diadem
|
trees
|
2500
|
| 855-C |
Helga Hufflepuff's Cup
|
dp
trees
|
2000
|
| 855-B |
Marvolo Gaunt's Ring
|
brute force
data structures
dp
|
1500
|
| 855-A |
Tom Riddle's Diary
|
brute force
implementation
strings
|
800
|
| 854-B |
Maxim Buys an Apartment
|
constructive algorithms
math
|
1200
|
| 854-A |
Fraction
|
brute force
constructive algorithms
math
|
800
|
| 853-E |
Lada Malina
|
data structures
geometry
|
3400
|
| 853-D |
Michael and Charging Stations
|
binary search
dp
greedy
|
2400
|
| 853-C |
Boredom
|
data structures
|
2100
|
| 853-B |
Jury Meeting
|
greedy
sortings
two pointers
|
1800
|