| 1673-C |
Palindrome Basis
|
brute force
dp
math
+1
|
1500
|
| 1673-B |
A Perfectly Balanced String?
|
brute force
greedy
strings
|
1100
|
| 1673-A |
Subtle Substring Subtraction
|
games
greedy
strings
|
800
|
| 1672-I |
PermutationForces
|
data structures
greedy
|
3000
|
| 1672-H |
Zigu Zagu
|
constructive algorithms
data structures
greedy
|
2700
|
| 1672-G |
Cross Xor
|
constructive algorithms
graphs
math
+1
|
3200
|
| 1672-F2 |
Checker for Array Shuffling
|
constructive algorithms
dfs and similar
graphs
|
2800
|
| 1672-F1 |
Array Shuffling
|
constructive algorithms
graphs
greedy
|
2000
|
| 1672-E |
notepad.exe
|
binary search
constructive algorithms
greedy
+1
|
2200
|
| 1672-D |
Cyclic Rotation
|
constructive algorithms
greedy
implementation
+1
|
1700
|
| 1672-C |
Unequal Array
|
constructive algorithms
greedy
implementation
|
1100
|
| 1672-B |
I love AAAB
|
constructive algorithms
implementation
|
800
|
| 1672-A |
Log Chopping
|
games
implementation
math
|
800
|
| 1671-F |
Permutation Counting
|
brute force
combinatorics
dp
+2
|
2700
|
| 1671-E |
Preorder
|
combinatorics
divide and conquer
dp
+4
|
2100
|
| 1671-D |
Insert a Progression
|
brute force
constructive algorithms
greedy
|
1600
|
| 1671-C |
Dolce Vita
|
binary search
brute force
greedy
+1
|
1200
|
| 1671-B |
Consecutive Points Segment
|
brute force
math
sortings
|
1000
|
| 1671-A |
String Building
|
implementation
|
800
|
| 1670-F |
Jee, You See?
|
bitmasks
combinatorics
dp
|
2400
|
| 1670-E |
Hemose on the Tree
|
bitmasks
constructive algorithms
dfs and similar
+1
|
2200
|
| 1670-D |
Very Suspicious
|
binary search
brute force
geometry
+3
|
1700
|
| 1670-C |
Where is the Pizza?
|
data structures
dfs and similar
dsu
+3
|
1400
|
| 1670-B |
Dorms War
|
brute force
implementation
strings
|
1100
|
| 1670-A |
Prof. Slim
|
greedy
implementation
sortings
|
800
|
| 1669-H |
Maximal AND
|
bitmasks
greedy
math
|
1300
|
| 1669-G |
Fall Down
|
dfs and similar
implementation
|
1200
|
| 1669-F |
Eating Candies
|
binary search
data structures
greedy
+1
|
1100
|
| 1669-E |
2-Letter Strings
|
data structures
math
strings
|
1200
|
| 1669-D |
Colorful Stamp
|
implementation
|
1100
|
| 1669-C |
Odd/Even Increments
|
greedy
implementation
math
|
800
|
| 1669-B |
Triple
|
implementation
sortings
|
800
|
| 1669-A |
Division?
|
implementation
|
800
|
| 1668-B |
Social Distance
|
greedy
math
sortings
|
900
|
| 1668-A |
Direction Change
|
implementation
math
|
800
|
| 1667-F |
Yin Yang
|
implementation
|
3500
|
| 1667-E |
Centroid Probabilities
|
combinatorics
dp
fft
+1
|
3000
|
| 1667-D |
Edge Elimination
|
constructive algorithms
dfs and similar
dp
+1
|
2900
|
| 1667-C |
Half Queen Cover
|
constructive algorithms
math
|
2400
|
| 1667-B |
Optimal Partition
|
data structures
dp
|
2100
|
| 1667-A |
Make it Increasing
|
brute force
greedy
math
|
1300
|
| 1666-L |
Labyrinth
|
dfs and similar
graphs
|
1800
|
| 1666-K |
Kingdom Partition
|
flows
|
3200
|
| 1666-J |
Job Lookup
|
constructive algorithms
dp
shortest paths
+1
|
2100
|
| 1666-I |
Interactive Treasure Hunt
|
brute force
constructive algorithms
geometry
+2
|
2200
|
| 1666-H |
Heroes of Might
|
math
|
3500
|
| 1666-G |
Global Warming
|
geometry
math
|
3100
|
| 1666-F |
Fancy Stack
|
combinatorics
dp
implementation
|
2200
|
| 1666-E |
Even Split
|
binary search
constructive algorithms
greedy
+1
|
2500
|
| 1666-D |
Deletive Editing
|
greedy
|
900
|