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680 problems · filtered by 2 tags
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Name
✎
Rating
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2247D2
XOR Sorting (Hard Version)
bitmasks
data structures
greedy
+
unrated
1.9k
2244E
Masha and the Garland
data structures
dp
greedy
implementation
math
number theory
strings
+
unrated
7.6k
2242B
Predominant Frequency Division
data structures
greedy
implementation
math
+
1000
16.1k
2241F
A Bit Odd
data structures
games
greedy
math
+
1700
4.5k
2241G
Summmon
binary search
data structures
greedy
implementation
math
number theory
+
2400
831
2237E
Permutation Commutation
data structures
graphs
greedy
+
2000
2k
2237F
Paint the Array
data structures
dp
greedy
+
2400
908
2237H
Slime and Queries
data structures
greedy
trees
+
3500
124
2234F
Vessels, Heights and Two Versions (Hard Version)
data structures
dfs and similar
dsu
greedy
implementation
two pointers
+
1900
2.3k
2230E
Minimum Influence
binary search
data structures
greedy
implementation
math
sortings
two pointers
+
2100
1.5k
2229G
Roadworks
binary search
data structures
dp
greedy
two pointers
+
2900
345
2227D
Palindromex
binary search
brute force
constructive algorithms
data structures
greedy
implementation
two pointers
+
1200
13.9k
2227E
It All Went Sideways
binary search
data structures
dp
greedy
+
1400
9.7k
2227F
It Just Keeps Going Sideways
binary search
data structures
dp
greedy
math
+
1700
4.4k
2226C
Mental Monumental (Easy Version)
binary search
data structures
greedy
math
two pointers
+
1500
8.1k
2226E
Mental Monumental (Hard Version)
data structures
greedy
math
two pointers
+
2300
1k
2217E
Definitely Larger
binary search
constructive algorithms
data structures
graphs
greedy
sortings
+
2000
2.5k
2215E
Star Map
constructive algorithms
data structures
geometry
greedy
sortings
+
2700
217
2210B
Simply Sitting on Chairs
data structures
greedy
+
900
19.5k
2210F
A Simple Problem
binary search
data structures
greedy
math
trees
+
2700
263
2209F
Dynamic Values And Maximum Sum
data structures
greedy
implementation
trees
+
2700
460
2207F
Hanabi
binary search
data structures
dp
dsu
flows
graph matchings
graphs
greedy
+
2900
315
2205D
Simons and Beating Peaks
data structures
divide and conquer
dp
greedy
implementation
trees
+
1700
5.6k
2204F
Sum of Fractions
binary search
brute force
combinatorics
data structures
greedy
math
number theory
two pointers
+
2200
1.3k
2203E
Probabilistic Card Game
binary search
data structures
games
greedy
math
ternary search
+
2200
1.5k
2201D
Binary Not Search and Queries
data structures
greedy
implementation
+
2500
855
2200F
Mooclear Reactor 2
brute force
data structures
greedy
implementation
sortings
+
1900
3.2k
2196D
Double Bracket Sequence
data structures
dp
expression parsing
flows
greedy
strings
+
2500
1.1k
2196E1
Fuzzy Concatenation (Easy Version)
binary search
bitmasks
brute force
data structures
greedy
string suffix structures
+
2900
311
2196E2
Fuzzy Concatenation (Hard version)
binary search
bitmasks
data structures
dp
greedy
string suffix structures
+
3000
238
2193C
Replace and Sum
data structures
greedy
+
1000
30.3k
2189F
Zhora the Vacuum Cleaner
data structures
dfs and similar
dp
greedy
implementation
sortings
trees
+
2800
254
2187C
Jerry and Tom
data structures
dfs and similar
dsu
games
graphs
greedy
trees
+
2300
1.5k
2185H
BattleCows 2
binary search
brute force
data structures
dp
greedy
+
2500
752
2183D2
Tree Coloring (Hard Version)
combinatorics
constructive algorithms
data structures
dfs and similar
greedy
implementation
trees
+
2100
2.6k
2182E
New Year's Gifts
binary search
data structures
greedy
sortings
two pointers
+
1800
5.9k
2182F2
Christmas Reindeer (hard version)
bitmasks
brute force
combinatorics
data structures
greedy
math
+
2500
1.1k
2181B
Battle of Arrays
data structures
games
greedy
+
1400
6.4k
2180D
Insolvable Disks
data structures
dp
greedy
math
+
1900
4.4k
2176E
Remove at the lowest cost
data structures
dfs and similar
dp
dsu
greedy
implementation
trees
+
2400
1.3k
2174D
Secret Message
data structures
dp
greedy
trees
+
3400
317
2171D
Rae Taylor and Trees (easy version)
binary search
data structures
dp
dsu
greedy
implementation
trees
+
1400
12.3k
2171F
Rae Taylor and Trees (hard version)
binary search
constructive algorithms
data structures
dp
dsu
greedy
implementation
trees
+
1600
7.6k
2167E
khba Loves to Sleep!
binary search
data structures
geometry
greedy
implementation
+
1600
9.6k
2165F
Arctic Acquisition
data structures
greedy
+
3500
228
2164C
Dungeon
binary search
brute force
data structures
greedy
sortings
+
1400
12.3k
2164E
Journey
data structures
dfs and similar
dsu
graphs
greedy
+
2300
3.6k
2161D
Locked Out
binary search
data structures
dp
greedy
+
2100
2.9k
2159B
Rectangles
brute force
data structures
dp
dsu
greedy
implementation
two pointers
+
2100
3.4k
2157E
Adjusting Drones
binary search
brute force
data structures
dp
dsu
greedy
implementation
sortings
+
1900
4.6k
2156E
Best Time to Buy and Sell Stock
binary search
brute force
data structures
dp
games
graphs
greedy
+
2500
1k
2156F1
Strange Operation (Easy Version)
brute force
data structures
greedy
implementation
sortings
+
2200
1.7k
2156F2
Strange Operation (Hard Version)
data structures
greedy
trees
+
3000
266
2152C
Triple Removal
data structures
greedy
math
+
1400
13.9k
2152F
Triple Attack
data structures
greedy
+
2500
2.9k
2152H2
Victorious Coloring (Hard Version)
data structures
greedy
schedules
+
3500
217
2147E
Maximum OR Popcount
binary search
bitmasks
brute force
data structures
greedy
+
2300
2.2k
2147F
Exchange Queries
combinatorics
data structures
greedy
+
2800
1.2k
2146E
Yet Another MEX Problem
brute force
constructive algorithms
data structures
divide and conquer
greedy
hashing
+
2300
2.2k
2145E
Predicting Popularity
binary search
data structures
greedy
sortings
+
2100
3.2k
2143D1
Inversion Graph Coloring (Easy Version)
combinatorics
data structures
dp
greedy
two pointers
+
1800
6.8k
2140C
Ultimate Value
data structures
games
greedy
+
1500
13.1k
2140D
A Cruel Segment's Thesis
data structures
greedy
sortings
+
2000
5.2k
2138B
Antiamuny Wants to Learn Swap
data structures
greedy
two pointers
+
1900
5.6k
2132E
Arithmetics Competition
binary search
data structures
greedy
sortings
ternary search
+
1700
7.9k
2131D
Arboris Contractio
data structures
graphs
greedy
trees
+
1400
14.9k
2131F
Unjust Binary Life
binary search
data structures
greedy
math
sortings
two pointers
+
1900
4.8k
2129B
Stay or Mirror
brute force
data structures
dp
greedy
sortings
+
1600
15.1k
2128E1
Submedians (Easy Version)
binary search
data structures
dp
greedy
math
+
1900
6.8k
2127E
Ancient Tree
constructive algorithms
data structures
dfs and similar
dsu
greedy
trees
+
2100
4.4k
2126D
This Is the Last Time
data structures
greedy
sortings
+
1200
24.7k
2123E
MEX Count
binary search
data structures
greedy
sortings
two pointers
+
1400
15.3k
2123G
Modular Sorting
brute force
data structures
greedy
math
number theory
sortings
+
2100
3.3k
2122D
Traffic Lights
brute force
data structures
divide and conquer
dp
graphs
greedy
shortest paths
+
2400
2.8k
2121F
Yamakasi
binary search
brute force
data structures
greedy
two pointers
+
1800
8.3k
2118C
Make It Beautiful
bitmasks
data structures
greedy
math
+
1300
19k
2117C
Cool Partition
data structures
greedy
+
1200
21.6k
2111D
Creating a Schedule
constructive algorithms
data structures
greedy
implementation
sortings
+
1400
12.3k
2111E
Changing the String
binary search
data structures
greedy
implementation
sortings
strings
+
1900
5.5k
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2107F2
Cycling (Hard Version)
binary search
brute force
data structures
dp
greedy
+
2800
566
2104B
Move to the End
brute force
data structures
dp
greedy
implementation
+
1000
21.3k
2101B
Quartet Swapping
brute force
data structures
divide and conquer
greedy
sortings
+
1800
8.1k
2101C
23 Kingdom
binary search
brute force
data structures
greedy
ternary search
two pointers
+
2200
3.8k
2101E
Kia Bakes a Cake
data structures
dp
greedy
trees
+
3100
2k
2097E
Clearing the Snowdrift
data structures
dfs and similar
dp
greedy
+
3100
287
2093G
Shorten the Array
binary search
bitmasks
data structures
dfs and similar
greedy
strings
trees
two pointers
+
1900
4k
2091G
Gleb and Boating
brute force
constructive algorithms
data structures
dp
graphs
greedy
math
number theory
shortest paths
+
2300
1.6k
2090C
Dining Hall
data structures
greedy
implementation
sortings
+
1700
6.5k
2089B1
Canteen (Easy Version)
binary search
data structures
flows
greedy
two pointers
+
1900
3.3k
2089B2
Canteen (Hard Version)
binary search
data structures
dp
flows
greedy
two pointers
+
2300
1.3k
2085D
Serval and Kaitenzushi Buffet
data structures
graph matchings
greedy
+
2000
5.5k
2085F1
Serval and Colorful Array (Easy Version)
data structures
greedy
+
2600
809
2085F2
Serval and Colorful Array (Hard Version)
data structures
greedy
+
2900
533
2084C
You Soared Afar With Grace
constructive algorithms
data structures
greedy
implementation
+
1400
12k
2084F
Skyscape
constructive algorithms
data structures
greedy
+
2900
519
2079B
Arithmetic Exercise
*special
data structures
dp
greedy
+
2600
162
2077D
Maximum Polygon
brute force
data structures
greedy
implementation
math
+
3100
393
2077E
Another Folding Strip
combinatorics
constructive algorithms
data structures
divide and conquer
dp
greedy
math
+
2700
627
2071C
Trapmigiano Reggiano
constructive algorithms
data structures
dfs and similar
dp
greedy
sortings
trees
+
1700
9.9k
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