| 2123-B |
Tournament
|
greedy
|
800
|
| 2123-A |
Blackboard Game
|
math
|
800
|
| 2122-G |
Tree Parking
|
combinatorics
fft
math
+1
|
3300
|
| 2122-F |
Colorful Polygon
|
constructive algorithms
divide and conquer
geometry
|
3400
|
| 2122-E |
Greedy Grid Counting
|
combinatorics
dp
greedy
+1
|
2600
|
| 2122-D |
Traffic Lights
|
brute force
data structures
divide and conquer
+4
|
2400
|
| 2122-C |
Manhattan Pairs
|
constructive algorithms
geometry
greedy
+2
|
1700
|
| 2122-B |
Pile Shuffling
|
greedy
math
|
1100
|
| 2122-A |
Greedy Grid
|
constructive algorithms
greedy
|
800
|
| 2121-H |
Ice Baby
|
binary search
brute force
data structures
+3
|
2300
|
| 2121-G |
Gangsta
|
data structures
divide and conquer
math
+1
|
1900
|
| 2121-F |
Yamakasi
|
binary search
brute force
data structures
+2
|
1800
|
| 2121-E |
Sponsor of Your Problems
|
dp
greedy
implementation
+1
|
1500
|
| 2121-D |
1709
|
implementation
sortings
|
1300
|
| 2121-C |
Those Who Are With Us
|
greedy
implementation
|
1200
|
| 2121-B |
Above the Clouds
|
constructive algorithms
greedy
strings
|
800
|
| 2121-A |
Letter Home
|
brute force
math
|
800
|
| 2120-G |
Eulerian Line Graph
|
graphs
greedy
math
|
3000
|
| 2120-F |
Superb Graphs
|
2-sat
graphs
|
2600
|
| 2120-E |
Lanes of Cars
|
binary search
dp
ternary search
|
2300
|
| 2120-D |
Matrix game
|
combinatorics
math
|
1800
|
| 2120-C |
Divine Tree
|
constructive algorithms
greedy
math
+2
|
1400
|
| 2120-B |
Square Pool
|
geometry
|
1000
|
| 2120-A |
Square of Rectangles
|
geometry
math
|
800
|
| 2119-F |
Volcanic Eruptions
|
dfs and similar
dp
greedy
+2
|
3300
|
| 2119-E |
And Constraint
|
bitmasks
dp
greedy
|
2600
|
| 2119-D |
Token Removing
|
combinatorics
dp
math
|
2100
|
| 2119-C |
A Good Problem
|
bitmasks
constructive algorithms
math
|
1300
|
| 2119-B |
Line Segments
|
geometry
greedy
math
|
1200
|
| 2119-A |
Add or XOR
|
bitmasks
greedy
math
|
800
|
| 2118-F |
Shifts and Swaps
|
data structures
graphs
hashing
+1
|
3100
|
| 2118-E |
Grid Coloring
|
constructive algorithms
geometry
greedy
+1
|
2400
|
| 2118-D2 |
Red Light, Green Light (Hard version)
|
binary search
brute force
data structures
+6
|
2200
|
| 2118-D1 |
Red Light, Green Light (Easy version)
|
brute force
dfs and similar
dp
+3
|
1700
|
| 2118-C |
Make It Beautiful
|
bitmasks
data structures
greedy
+1
|
1300
|
| 2118-B |
Make It Permutation
|
constructive algorithms
|
1200
|
| 2118-A |
Equal Subsequences
|
constructive algorithms
greedy
|
800
|
| 2117-H |
Incessant Rain
|
data structures
divide and conquer
sortings
|
2500
|
| 2117-G |
Omg Graph
|
brute force
dsu
graphs
+3
|
1900
|
| 2117-F |
Wildflower
|
combinatorics
dfs and similar
trees
|
1800
|
| 2117-E |
Lost Soul
|
brute force
greedy
|
1600
|
| 2117-D |
Retaliation
|
binary search
math
number theory
|
1200
|
| 2117-C |
Cool Partition
|
data structures
greedy
|
1200
|
| 2117-B |
Shrink
|
constructive algorithms
|
800
|
| 2117-A |
False Alarm
|
greedy
implementation
|
800
|
| 2116-B |
Gellyfish and Baby's Breath
|
greedy
math
sortings
|
1300
|
| 2116-A |
Gellyfish and Tricolor Pansy
|
games
greedy
|
800
|
| 2115-F2 |
Gellyfish and Lycoris Radiata (Hard Version)
|
data structures
|
3500
|
| 2115-F1 |
Gellyfish and Lycoris Radiata (Easy Version)
|
data structures
|
3500
|
| 2115-E |
Gellyfish and Mayflower
|
dp
graphs
|
3500
|