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Name
924C
Riverside Curio
data structures
,
dp
,
greedy
1700
x3685
1770D
Koxia and Game
constructive algorithms
,
data structures
,
dfs and similar
,
dsu
,
flows
,
games
,
graph matchings
,
graphs
,
implementation
2000
x3680
675D
Tree Construction
data structures
,
trees
1800
x3671
799C
Fountains
binary search
,
data structures
,
implementation
1800
x3656
1299C
Water Balance
data structures
,
geometry
,
greedy
2100
x3642
372C
Watching Fireworks is Fun
data structures
,
dp
,
math
2100
x3641
1585D
Yet Another Sorting Problem
data structures
,
math
1900
x3636
1252C
Even Path
data structures
,
implementation
1600
x3627
1945F
Kirill and Mushrooms
data structures
,
sortings
1900
x3621
1076E
Vasya and a Tree
data structures
,
trees
1900
x3616
1919D
01 Tree
constructive algorithms
,
data structures
,
dsu
,
greedy
,
sortings
,
trees
2100
x3609
1847D
Professor Higashikata
data structures
,
dsu
,
greedy
,
implementation
,
strings
1900
x3608
1582E
Pchelyonok and Segments
binary search
,
data structures
,
dp
,
greedy
,
math
2000
x3598
1580A
Portal
brute force
,
data structures
,
dp
,
greedy
,
implementation
1700
x3567
111B
Petya and Divisors
binary search
,
data structures
,
number theory
1900
x3549
1000F
One Occurrence
data structures
,
divide and conquer
2400
x3532
1163C2
Power Transmission (Hard Edition)
data structures
,
geometry
,
implementation
,
math
1900
x3530
1905D
Cyclic MEX
data structures
,
implementation
,
math
,
two pointers
2000
x3527
1041E
Tree Reconstruction
constructive algorithms
,
data structures
,
graphs
,
greedy
1900
x3518
1428E
Carrots for Rabbits
binary search
,
data structures
,
greedy
,
math
,
sortings
2200
x3516
446B
DZY Loves Modification
brute force
,
data structures
,
greedy
2000
x3515
1567E
Non-Decreasing Dilemma
data structures
,
divide and conquer
,
math
2200
x3511
1667B
Optimal Partition
data structures
,
dp
2100
x3484
1921F
Sum of Progression
brute force
,
data structures
,
dp
,
implementation
,
math
1900
x3473
961E
Tufurama
data structures
1900
x3456
1932F
Feed Cats
data structures
,
dp
,
sortings
1900
x3438
940E
Cashback
data structures
,
dp
,
greedy
,
math
2000
x3431
675C
Money Transfers
constructive algorithms
,
data structures
,
greedy
,
sortings
2100
x3423
1266D
Decreasing Debts
constructive algorithms
,
data structures
,
graphs
,
greedy
,
implementation
,
math
,
two pointers
2000
x3411
1891F
A Growing Tree
data structures
,
dfs and similar
,
trees
2000
x3405
1446C
Xor Tree
binary search
,
bitmasks
,
data structures
,
divide and conquer
,
dp
,
trees
2100
x3399
818D
Multicolored Cars
data structures
,
implementation
1700
x3397
703D
Mishka and Interesting sum
data structures
2100
x3394
718C
Sasha and Array
data structures
,
math
,
matrices
2300
x3390
605B
Lazy Student
constructive algorithms
,
data structures
,
graphs
1700
x3389
1969D
Shop Game
data structures
,
greedy
,
math
,
sortings
1900
x3382
1406D
Three Sequences
constructive algorithms
,
data structures
,
greedy
,
math
2200
x3382
282E
Sausage Maximization
bitmasks
,
data structures
,
trees
2200
x3369
487B
Strip
binary search
,
data structures
,
dp
,
two pointers
2000
x3362
1017D
The Wu
bitmasks
,
brute force
,
data structures
1900
x3347
1288E
Messenger Simulator
data structures
2000
x3341
1886D
Monocarp and the Set
combinatorics
,
data structures
,
math
2100
x3339
1738D
Permutation Addicts
constructive algorithms
,
data structures
,
dfs and similar
,
dsu
,
graphs
,
trees
1900
x3332
1437E
Make It Increasing
binary search
,
constructive algorithms
,
data structures
,
dp
,
implementation
2200
x3331
1265E
Beautiful Mirrors
data structures
,
dp
,
math
,
probabilities
2100
x3329
766D
Mahmoud and a Dictionary
data structures
,
dfs and similar
,
dp
,
dsu
,
graphs
2000
x3271
1690G
Count the Trains
binary search
,
data structures
,
greedy
,
sortings
2000
x3262
985E
Pencils and Boxes
binary search
,
data structures
,
dp
,
greedy
,
two pointers
2100
x3260
1801C
Music Festival
binary search
,
data structures
,
dp
,
greedy
,
sortings
1900
x3240
842D
Vitya and Strange Lesson
binary search
,
data structures
2000
x3232
311B
Cats Transport
data structures
,
dp
2400
x3231
1923E
Count Paths
data structures
,
dfs and similar
,
dp
,
dsu
,
graphs
,
trees
2000
x3226
1503C
Travelling Salesman Problem
binary search
,
data structures
,
dp
,
greedy
,
shortest paths
,
sortings
,
two pointers
2200
x3207
1175E
Minimal Segment Cover
data structures
,
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
implementation
,
trees
2200
x3205
446C
DZY Loves Fibonacci Numbers
data structures
,
math
,
number theory
2400
x3184
1968G1
Division + LCP (easy version)
binary search
,
data structures
,
dp
,
hashing
,
string suffix structures
,
strings
1900
x3181
896C
Willem, Chtholly and Seniorious
data structures
,
probabilities
2600
x3167
670E
Correct Bracket Sequence Editor
data structures
,
dsu
,
strings
1700
x3155
863D
Yet Another Array Queries Problem
data structures
,
implementation
1800
x3145
474E
Pillars
binary search
,
data structures
,
dp
,
sortings
,
trees
2000
x3130
566D
Restructuring Company
data structures
,
dsu
1900
x3101
722D
Generating Sets
binary search
,
data structures
,
dfs and similar
,
greedy
,
strings
,
trees
1900
x3090
1838D
Bracket Walk
data structures
,
greedy
,
strings
2100
x3086
1477B
Nezzar and Binary String
data structures
,
greedy
1900
x3078
689D
Friends and Subsequences
binary search
,
data structures
2100
x3070
750D
New Year and Fireworks
brute force
,
data structures
,
dfs and similar
,
dp
,
implementation
1900
x3056
1684E
MEX vs DIFF
binary search
,
brute force
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
2100
x3046
1151E
Number of Components
combinatorics
,
data structures
,
dp
,
math
2100
x3040
1699D
Almost Triple Deletions
data structures
,
dp
,
greedy
2300
x3029
1889C1
Doremy's Drying Plan (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
sortings
2000
x3025
708C
Centroids
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
2300
x3015
6E
Exposition
binary search
,
data structures
,
dsu
,
trees
,
two pointers
1900
x3009
1644E
Expand the Path
brute force
,
combinatorics
,
data structures
,
implementation
,
math
1900
x3008
825E
Minimal Labels
data structures
,
dfs and similar
,
graphs
,
greedy
2300
x3002
1810E
Monsters
brute force
,
data structures
,
dfs and similar
,
dsu
,
graphs
,
greedy
2100
x2983
246E
Blood Cousins Return
binary search
,
data structures
,
dfs and similar
,
dp
,
sortings
2400
x2980
796C
Bank Hacking
constructive algorithms
,
data structures
,
dp
,
trees
1900
x2979
1204D2
Kirk and a Binary String (hard version)
data structures
,
greedy
,
math
,
strings
2100
x2977
522D
Closest Equals
*special problem
,
data structures
2000
x2971
1277D
Let's Play the Words?
data structures
,
hashing
,
implementation
,
math
1900
x2963
863E
Turn Off The TV
data structures
,
sortings
2000
x2960
1482E
Skyline Photo
data structures
,
divide and conquer
,
dp
2100
x2956
145E
Lucky Queries
data structures
2400
x2951
1851G
Vlad and the Mountains
binary search
,
data structures
,
dsu
,
graphs
,
implementation
,
sortings
,
trees
,
two pointers
2000
x2944
893D
Credit Card
data structures
,
dp
,
greedy
,
implementation
1900
x2928
1195E
OpenStreetMap
data structures
,
two pointers
2100
x2927
159C
String Manipulation 1.0
*special problem
,
binary search
,
brute force
,
data structures
,
strings
1400
x2921
1899G
Unusual Entertainment
data structures
,
dfs and similar
,
dsu
,
shortest paths
,
sortings
,
trees
,
two pointers
1900
x2920
641E
Little Artem and Time Machine
data structures
2000
x2918
1284D
New Year and Conference
binary search
,
data structures
,
hashing
,
sortings
2100
x2916
1320C
World of Darkraft: Battle for Azathoth
brute force
,
data structures
,
sortings
2000
x2906
1520F2
Guess the K-th Zero (Hard version)
binary search
,
constructive algorithms
,
data structures
,
interactive
2200
x2904
1077F2
Pictures with Kittens (hard version)
data structures
,
dp
2100
x2900
665E
Beautiful Subarrays
data structures
,
divide and conquer
,
strings
,
trees
2100
x2890
1218F
Workout plan
data structures
,
greedy
1500
x2886
1209G1
Into Blocks (easy version)
data structures
,
dsu
,
greedy
,
implementation
,
two pointers
2000
x2874
1648C
Tyler and Strings
combinatorics
,
data structures
,
implementation
1900
x2870
766E
Mahmoud and a xor trip
bitmasks
,
constructive algorithms
,
data structures
,
dfs and similar
,
dp
,
math
,
trees
2100
x2850
1092D2
Great Vova Wall (Version 2)
data structures
,
implementation
2200
x2847
455D
Serega and Fun
data structures
2700
x2818
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