Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rayan
→ Pay attention
Before contest
Good Bye 2024: 2025 is NEAR
03:58:13
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
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
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
115B
Lawnmower
greedy
,
sortings
1500
x2630
114B
PFAST Inc.
bitmasks
,
brute force
,
graphs
1500
x3751
113A
Grammar Lessons
implementation
,
strings
1600
x2311
111A
Petya and Inequiations
greedy
1400
x4817
108B
Datatypes
math
,
sortings
1400
x2487
107B
Basketball Team
combinatorics
,
dp
,
math
,
probabilities
1600
x3543
107A
Dorm Water Supply
dfs and similar
,
graphs
1400
x5162
106D
Treasure Island
brute force
,
implementation
1700
x1369
106C
Buns
dp
1700
x6078
105B
Dark Assembly
brute force
,
probabilities
1800
x821
105A
Transmigration
implementation
1700
x1846
103B
Cthulhu
dfs and similar
,
dsu
,
graphs
1500
x9063
101B
Buses
binary search
,
data structures
,
dp
1700
x2648
100I
Rotation
*special problem
,
geometry
,
math
1500
x356
100G
Name the album
*special problem
,
data structures
,
implementation
1800
x126
100F
Polynom
*special problem
,
implementation
1800
x137
100E
Lamps in a Line
*special problem
,
math
1600
x277
100D
World of Mouth
*special problem
,
strings
1500
x310
100C
A+B
*special problem
,
implementation
1400
x545
100B
Friendly Numbers
*special problem
,
implementation
1500
x549
98A
Help Victoria the Wise
brute force
,
implementation
1700
x1219
95B
Lucky Numbers
dp
,
greedy
1800
x1255
95A
Hockey
implementation
,
strings
1600
x1689
93A
Frames
implementation
1700
x1968
91B
Queue
binary search
,
data structures
1500
x6907
91A
Newspaper Headline
greedy
,
strings
1500
x3638
89A
Robbery
greedy
1800
x1486
88B
Keyboard
implementation
1500
x4756
87B
Vasya and Types
implementation
,
strings
1800
x1156
87A
Trains
implementation
,
math
1500
x5426
86A
Reflection
math
1600
x1433
85B
Embassy Queue
data structures
,
greedy
1800
x984
84C
Biathlon
binary search
,
implementation
1700
x1723
83B
Doctor
binary search
,
math
,
sortings
1800
x1713
82B
Sets
constructive algorithms
,
hashing
,
implementation
1700
x2069
81C
Average Score
greedy
,
math
,
sortings
1700
x1674
81B
Sequence Formatting
implementation
,
strings
1700
x1961
81A
Plug-in
implementation
1400
x11208
79C
Beaver
data structures
,
dp
,
greedy
,
hashing
,
strings
,
two pointers
1800
x1821
79B
Colorful Field
implementation
,
sortings
1400
x7359
77B
Falling Anvils
math
,
probabilities
1800
x2668
77A
Heroes
brute force
,
implementation
1400
x1785
76E
Points
implementation
,
math
1700
x1726
76D
Plus and xor
dp
,
greedy
,
math
1700
x2091
75C
Modified GCD
binary search
,
number theory
1600
x13024
75B
Facetook Priority Wall
expression parsing
,
implementation
,
strings
1500
x3333
74B
Train
dp
,
games
,
greedy
1500
x1555
73C
LionAge II
dp
1800
x2138
73A
The Elder Trolls IV: Oblivon
greedy
,
math
1600
x1381
72I
Goofy Numbers
*special problem
,
implementation
1500
x465
72H
Reverse It!
*special problem
,
implementation
1600
x269
72E
Ali goes shopping
*special problem
,
brute force
,
strings
1800
x173
72A
Goshtasp, Vishtasp and Eidi
*special problem
,
greedy
,
math
1800
x187
71C
Round Table Knights
dp
,
math
,
number theory
1600
x6611
70B
Text Messaging
expression parsing
,
greedy
,
strings
1600
x1788
69E
Subsegments
data structures
,
implementation
1800
x4458
68B
Energy exchange
binary search
1600
x4737
67B
Restoration of the Permutation
greedy
1800
x780
67A
Partial Teacher
dp
,
graphs
,
greedy
,
implementation
1800
x2140
66D
Petya and His Friends
constructive algorithms
,
math
,
number theory
1700
x3202
66C
Petya and File System
data structures
,
implementation
1800
x1082
65B
Harry Potter and the History of Magic
brute force
,
greedy
,
implementation
1700
x1394
65A
Harry Potter and Three Spells
implementation
,
math
1800
x1828
64E
Prime Segment
*special problem
,
brute force
,
math
,
number theory
1800
x245
64D
Presents
*special problem
,
greedy
1800
x290
64C
Table
*special problem
,
greedy
,
implementation
,
math
1600
x341
64B
Expression
*special problem
,
expression parsing
1500
x1022
63C
Bulls and Cows
brute force
,
implementation
1700
x1746
62B
Tyndex.Brome
binary search
,
implementation
1800
x1296
61D
Eternal Victory
dfs and similar
,
graphs
,
greedy
,
shortest paths
,
trees
1800
x6661
60B
Serial Time!
dfs and similar
,
dsu
1400
x4714
59C
Title
expression parsing
1600
x2120
58C
Trees
brute force
1800
x2047
57B
Martian Architecture
implementation
1600
x1025
56C
Corporation Mail
data structures
,
expression parsing
,
implementation
1700
x1173
55B
Smallest number
brute force
1600
x2901
54B
Cutting Jigsaw Puzzle
hashing
,
implementation
1800
x778
53D
Physical Education
sortings
1500
x2061
53B
Blog Photo
binary search
,
implementation
1700
x1417
52B
Right Triangles
combinatorics
1600
x2087
51C
Three Base Stations
binary search
,
greedy
1800
x2056
51B
bHTML Tables Analisys
expression parsing
1700
x877
50B
Choosing Symbol Pairs
strings
1500
x5749
49D
Game
brute force
,
dp
,
implementation
1800
x1925
49C
Disposition
constructive algorithms
,
math
1700
x1698
49B
Sum
math
1500
x2505
48D
Permutations
greedy
1500
x2574
48C
The Race
math
1800
x787
46D
Parking Lot
data structures
,
implementation
1800
x990
46C
Hamsters and Tigers
two pointers
1600
x2493
45J
Planting Trees
constructive algorithms
1800
x952
45I
TCMCF+++
greedy
1400
x2509
44H
Phone Number
dp
1700
x1760
44E
Anfisa the Monkey
dp
1400
x5266
44D
Hyperdrive
math
1800
x718
44B
Cola
implementation
1500
x2031
42B
Game of chess unfinished
implementation
1700
x957
42A
Guilty --- to the kitchen!
greedy
,
implementation
1400
x2870
41B
Martian Dollar
brute force
1400
x4077
40B
Repaintings
math
1600
x1180
←
1
2
...
20
21
22
23
→
User lists
Name