| 171-G |
Mysterious numbers - 2
|
*special
|
1600
|
| 171-F |
ucyhf
|
*special
brute force
implementation
+1
|
1600
|
| 171-E |
MYSTERIOUS LANGUAGE
|
*special
|
2000
|
| 171-D |
Broken checker
|
*special
brute force
|
1300
|
| 171-C |
A Piece of Cake
|
*special
implementation
|
2000
|
| 171-B |
Star
|
*special
combinatorics
|
1300
|
| 171-A |
Mysterious numbers - 1
|
*special
constructive algorithms
|
1200
|
| 169-B |
Replacing Digits
|
greedy
|
1100
|
| 169-A |
Chores
|
sortings
|
800
|
| 168-B |
Wizards and Minimal Spell
|
implementation
strings
|
1700
|
| 168-A |
Wizards and Demonstration
|
implementation
math
|
900
|
| 167-E |
Wizards and Bets
|
dfs and similar
graphs
math
+1
|
2900
|
| 167-D |
Wizards and Roads
|
data structures
divide and conquer
graph matchings
+2
|
3000
|
| 167-C |
Wizards and Numbers
|
games
math
|
2300
|
| 167-B |
Wizards and Huge Prize
|
dp
math
probabilities
|
1800
|
| 167-A |
Wizards and Trolleybuses
|
implementation
math
|
1600
|
| 166-E |
Tetrahedron
|
dp
math
matrices
|
1500
|
| 166-D |
Shoe Store
|
dp
graph matchings
greedy
+2
|
2500
|
| 166-C |
Median
|
greedy
math
sortings
|
1500
|
| 166-B |
Polygons
|
geometry
sortings
|
2100
|
| 166-A |
Rank List
|
binary search
implementation
sortings
|
1100
|
| 165-E |
Compatible Numbers
|
bitmasks
brute force
dfs and similar
+1
|
2200
|
| 165-D |
Beard Graph
|
data structures
dsu
trees
|
2100
|
| 165-C |
Another Problem on Strings
|
binary search
brute force
dp
+3
|
1600
|
| 165-B |
Burning Midnight Oil
|
binary search
implementation
|
1500
|
| 165-A |
Supercentral Point
|
implementation
|
1000
|
| 164-E |
Polycarpus and Tasks
|
|
3100
|
| 164-D |
Minimum Diameter
|
binary search
brute force
|
3100
|
| 164-C |
Machine Programming
|
flows
graphs
|
2400
|
| 164-B |
Ancient Berland Hieroglyphs
|
two pointers
|
2000
|
| 164-A |
Variable, or There and Back Again
|
dfs and similar
graphs
|
1700
|
| 163-E |
e-Government
|
data structures
dfs and similar
dp
+2
|
2800
|
| 163-D |
Large Refrigerator
|
brute force
|
2900
|
| 163-C |
Conveyor
|
sortings
two pointers
|
2100
|
| 163-B |
Lemmings
|
binary search
|
2000
|
| 163-A |
Substring and Subsequence
|
dp
|
1700
|
| 162-J |
Brackets
|
*special
|
1800
|
| 162-I |
Truncatable primes
|
*special
|
2000
|
| 162-H |
Alternating case
|
*special
|
1800
|
| 162-G |
Non-decimal sum
|
*special
|
2000
|
| 162-F |
Factorial zeros
|
*special
|
1800
|
| 162-E |
HQ9+
|
*special
|
1800
|
| 162-D |
Remove digits
|
*special
|
1900
|
| 162-C |
Prime factorization
|
*special
|
1800
|
| 162-B |
Binary notation
|
*special
|
1800
|
| 162-A |
Pentagonal numbers
|
*special
implementation
|
1100
|
| 161-E |
Polycarpus the Safecracker
|
brute force
dp
|
2500
|
| 161-D |
Distance in Tree
|
dfs and similar
dp
trees
|
1800
|
| 161-C |
Abracadabra
|
divide and conquer
|
2400
|
| 161-B |
Discounts
|
constructive algorithms
greedy
sortings
|
1700
|