Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
954G
Castle Defense
binary search
,
data structures
,
greedy
,
two pointers
2000
x1903
1190D
Tokitsukaze and Strange Rectangle
data structures
,
divide and conquer
,
sortings
,
two pointers
2000
x2217
1936B
Pinball
binary search
,
data structures
,
implementation
,
math
,
two pointers
2000
x2468
1157F
Maximum Balanced Circle
constructive algorithms
,
dp
,
greedy
,
two pointers
2000
x2533
609D
Gadgets for dollars and pounds
binary search
,
greedy
,
two pointers
2000
x2573
899E
Segments Removal
data structures
,
dsu
,
flows
,
implementation
,
two pointers
2000
x2741
1209G1
Into Blocks (easy version)
data structures
,
dsu
,
greedy
,
implementation
,
two pointers
2000
x2873
1744F
MEX vs MED
math
,
two pointers
2000
x2900
1851G
Vlad and the Mountains
binary search
,
data structures
,
dsu
,
graphs
,
implementation
,
sortings
,
trees
,
two pointers
2000
x2943
487B
Strip
binary search
,
data structures
,
dp
,
two pointers
2000
x3360
1266D
Decreasing Debts
constructive algorithms
,
data structures
,
graphs
,
greedy
,
implementation
,
math
,
two pointers
2000
x3411
1905D
Cyclic MEX
data structures
,
implementation
,
math
,
two pointers
2000
x3521
1827B1
Range Sorting (Easy Version)
binary search
,
dp
,
dsu
,
greedy
,
trees
,
two pointers
2000
x3670
1788D
Moving Dots
binary search
,
brute force
,
combinatorics
,
math
,
two pointers
2000
x3735
1622D
Shuffle
combinatorics
,
math
,
two pointers
2000
x3876
1796D
Maximum Subarray
data structures
,
dp
,
greedy
,
two pointers
2000
x3904
1223D
Sequence Sorting
dp
,
greedy
,
two pointers
2000
x3930
514D
R2D2 and Droid Army
binary search
,
data structures
,
two pointers
2000
x4130
1841D
Pairs of Segments
data structures
,
greedy
,
sortings
,
two pointers
2000
x4146
1408D
Searchlights
binary search
,
brute force
,
data structures
,
dp
,
implementation
,
sortings
,
two pointers
2000
x4167
1487E
Cheap Dinner
brute force
,
data structures
,
graphs
,
greedy
,
implementation
,
sortings
,
two pointers
2000
x4375
1632D
New Year Concert
binary search
,
data structures
,
greedy
,
math
,
number theory
,
two pointers
2000
x4476
1380D
Berserk And Fireball
constructive algorithms
,
greedy
,
implementation
,
math
,
two pointers
2000
x4626
1244E
Minimizing Difference
binary search
,
constructive algorithms
,
greedy
,
sortings
,
ternary search
,
two pointers
2000
x4839
359D
Pair of Numbers
binary search
,
brute force
,
data structures
,
math
,
two pointers
2000
x4844
1379C
Choosing flowers
binary search
,
brute force
,
data structures
,
dfs and similar
,
dp
,
greedy
,
sortings
,
two pointers
2000
x5428
1156C
Match Points
binary search
,
greedy
,
sortings
,
ternary search
,
two pointers
2000
x5903
432D
Prefixes and Suffixes
dp
,
string suffix structures
,
strings
,
two pointers
2000
x8308
1359D
Yet Another Yet Another Task
data structures
,
dp
,
implementation
,
two pointers
2000
x8972
250D
Building Bridge
geometry
,
ternary search
,
two pointers
1900
x874
420C
Bug in Code
data structures
,
graphs
,
implementation
,
two pointers
1900
x1195
1120A
Diana and Liana
greedy
,
implementation
,
two pointers
1900
x1619
848B
Rooter's Song
constructive algorithms
,
data structures
,
geometry
,
implementation
,
sortings
,
two pointers
1900
x1815
1600E
Array Game
games
,
greedy
,
two pointers
1900
x1931
818E
Card Game Again
binary search
,
data structures
,
number theory
,
two pointers
1900
x1953
222D
Olympiad
binary search
,
greedy
,
sortings
,
two pointers
1900
x2127
613B
Skills
binary search
,
brute force
,
dp
,
greedy
,
sortings
,
two pointers
1900
x2173
190D
Non-Secret Cypher
two pointers
1900
x2235
343C
Read Time
binary search
,
greedy
,
two pointers
1900
x2906
1899G
Unusual Entertainment
data structures
,
dfs and similar
,
dsu
,
shortest paths
,
sortings
,
trees
,
two pointers
1900
x2920
6E
Exposition
binary search
,
data structures
,
dsu
,
trees
,
two pointers
1900
x3004
965D
Single-use Stones
binary search
,
flows
,
greedy
,
two pointers
1900
x3014
650B
Image Preview
binary search
,
brute force
,
dp
,
two pointers
1900
x3309
1819B
The Butcher
geometry
,
greedy
,
implementation
,
sortings
,
two pointers
1900
x3440
1168B
Good Triple
brute force
,
two pointers
1900
x3456
1659D
Reverse Sort Sum
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
,
two pointers
1900
x3883
1200D
White Lines
brute force
,
data structures
,
dp
,
implementation
,
two pointers
1900
x4038
1463D
Pairs
binary search
,
constructive algorithms
,
greedy
,
two pointers
1900
x4247
1569D
Inconvenient Pairs
binary search
,
data structures
,
implementation
,
sortings
,
two pointers
1900
x4293
1918D
Blocking Elements
binary search
,
data structures
,
dp
,
implementation
,
two pointers
1900
x4294
14D
Two Paths
dfs and similar
,
dp
,
graphs
,
shortest paths
,
trees
,
two pointers
1900
x4318
1558B
Up the Strip
brute force
,
dp
,
math
,
number theory
,
two pointers
1900
x4616
1601B
Frog Traveler
data structures
,
dfs and similar
,
dp
,
graphs
,
shortest paths
,
two pointers
1900
x4784
1883G2
Dances (Hard Version)
binary search
,
greedy
,
sortings
,
two pointers
1900
x4896
1494C
1D Sokoban
binary search
,
dp
,
greedy
,
implementation
,
two pointers
1900
x5239
1701D
Permutation Restoration
binary search
,
data structures
,
greedy
,
math
,
sortings
,
two pointers
1900
x5492
1547F
Array Stabilization (GCD version)
binary search
,
brute force
,
data structures
,
divide and conquer
,
number theory
,
two pointers
1900
x5518
1413C
Perform Easily
binary search
,
brute force
,
dp
,
implementation
,
sortings
,
two pointers
1900
x5544
1342D
Multiple Testcases
binary search
,
constructive algorithms
,
data structures
,
greedy
,
sortings
,
two pointers
1900
x5836
1508A
Binary Literature
constructive algorithms
,
greedy
,
implementation
,
strings
,
two pointers
1900
x6020
505C
Mr. Kitayuta, the Treasure Hunter
dfs and similar
,
dp
,
two pointers
1900
x6093
1358D
The Best Vacation
binary search
,
brute force
,
greedy
,
implementation
,
two pointers
1900
x8033
1400D
Zigzags
brute force
,
combinatorics
,
data structures
,
math
,
two pointers
1900
x9820
577B
Modulo Sum
combinatorics
,
data structures
,
dp
,
two pointers
1900
x11517
958F2
Lightsabers (medium)
binary search
,
two pointers
1800
x1200
180E
Cubes
binary search
,
dp
,
two pointers
1800
x1721
79C
Beaver
data structures
,
dp
,
greedy
,
hashing
,
strings
,
two pointers
1800
x1722
533E
Correcting Mistakes
constructive algorithms
,
dp
,
greedy
,
hashing
,
strings
,
two pointers
1800
x2174
846F
Random Query
data structures
,
math
,
probabilities
,
two pointers
1800
x2205
853B
Jury Meeting
greedy
,
sortings
,
two pointers
1800
x2503
939E
Maximize!
binary search
,
greedy
,
ternary search
,
two pointers
1800
x3014
652C
Foe Pairs
combinatorics
,
sortings
,
two pointers
1800
x3100
733C
Epidemic in Monstropolis
constructive algorithms
,
dp
,
greedy
,
two pointers
1800
x3298
1282C
Petya and Exam
greedy
,
sortings
,
two pointers
1800
x4106
1852B
Imbalanced Arrays
constructive algorithms
,
graphs
,
greedy
,
math
,
sortings
,
two pointers
1800
x4158
280B
Maximum Xor Secondary
data structures
,
implementation
,
two pointers
1800
x4377
1254B1
Send Boxes to Alice (Easy Version)
constructive algorithms
,
greedy
,
math
,
number theory
,
ternary search
,
two pointers
1800
x4420
1073C
Vasya and Robot
binary search
,
two pointers
1800
x4557
1290B
Irreducible Anagrams
binary search
,
constructive algorithms
,
data structures
,
strings
,
two pointers
1800
x4931
1133E
K Balanced Teams
dp
,
sortings
,
two pointers
1800
x5225
1941F
Rudolf and Imbalance
binary search
,
greedy
,
sortings
,
two pointers
1800
x5241
1450D
Rating Compression
binary search
,
data structures
,
greedy
,
implementation
,
two pointers
1800
x5315
1691D
Max GEQ Sum
binary search
,
constructive algorithms
,
data structures
,
divide and conquer
,
implementation
,
two pointers
1800
x5497
1630B
Range and Partition
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
1800
x5514
1732C1
Sheikh (Easy version)
binary search
,
bitmasks
,
greedy
,
two pointers
1800
x5582
1042D
Petya and Array
data structures
,
divide and conquer
,
two pointers
1800
x5734
1720D1
Xor-Subsequence (easy version)
bitmasks
,
brute force
,
dp
,
strings
,
trees
,
two pointers
1800
x5739
1793D
Moscow Gorillas
binary search
,
dp
,
greedy
,
implementation
,
math
,
two pointers
1800
x5780
1923D
Slimes
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
1800
x5960
1734D
Slime Escape
data structures
,
dp
,
greedy
,
two pointers
1800
x6045
1304D
Shortest and Longest LIS
constructive algorithms
,
graphs
,
greedy
,
two pointers
1800
x6076
1611F
ATM and Students
binary search
,
data structures
,
two pointers
1800
x6216
519D
A and B and Interesting Substrings
data structures
,
dp
,
two pointers
1800
x6276
1394A
Boboniu Chats with Du
dp
,
greedy
,
sortings
,
two pointers
1800
x6462
1758D
Range = √Sum
binary search
,
brute force
,
constructive algorithms
,
math
,
two pointers
1800
x6882
1728D
Letter Picking
constructive algorithms
,
dp
,
games
,
two pointers
1800
x6892
1845D
Rating System
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
math
,
two pointers
1800
x7342
1409E
Two Platforms
binary search
,
dp
,
sortings
,
two pointers
1800
x7576
1335E2
Three Blocks Palindrome (hard version)
brute force
,
data structures
,
dp
,
two pointers
1800
x7988
1548B
Integers Have Friends
binary search
,
data structures
,
divide and conquer
,
math
,
number theory
,
two pointers
1800
x9322
←
1
2
3
4
5
6
→
→ Pay attention
Before contest
Codeforces Round 946 (Div. 3)
40:54:47
Register now »
→ Filter Problems
Difficulty:
—
two pointers
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
Add tag
User lists
Name