Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Refact.ai Match 1 (Codeforces Round 985)
3 days
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
1243B1
Character Swap (Easy Version)
strings
1000
x14911
1243A
Maximum Square
implementation
800
x15712
1238A
Prime Subtraction
math
,
number theory
900
x24484
1237A
Balanced Rating Changes
implementation
,
math
1000
x20002
1236A
Stones
brute force
,
greedy
,
math
800
x16468
1234B1
Social Network (easy version)
implementation
1000
x18783
1234A
Equalize Prices Again
math
800
x27876
1230B
Ania and Minimizing
greedy
,
implementation
1000
x18760
1230A
Dawid and Bags of Candies
brute force
,
implementation
800
x21660
1228A
Distinct Digits
brute force
,
implementation
800
x21828
1225B1
TV Subscriptions (Easy Version)
implementation
1000
x11934
1225A
Forgetting Things
math
900
x15850
1223B
Strings Equalization
strings
1000
x14954
1223A
CME
math
800
x21644
1221A
2048 Game
brute force
,
greedy
,
math
1000
x16959
1220A
Cards
implementation
,
sortings
,
strings
800
x29917
1216B
Shooting
greedy
,
implementation
,
sortings
900
x18505
1216A
Prefixes
strings
800
x18721
1215A
Yellow Cards
greedy
,
implementation
,
math
1000
x11586
1213A
Chips Moving
math
900
x24147
1211A
Three Problems
*special problem
,
implementation
1000
x1425
1209A
Paint the Numbers
greedy
,
implementation
,
math
800
x12219
1208A
XORinacci
math
900
x16832
1207A
There Are Two Types Of Burgers
brute force
,
greedy
,
implementation
,
math
800
x21941
1206B
Make Product Equal One
dp
,
implementation
900
x27019
1206A
Choose Two Numbers
math
,
sortings
800
x24490
1204B
Mislove Has Lost an Array
greedy
,
math
900
x17555
1204A
BowWow and the Timetable
math
1000
x20963
1203A
Circle of Students
implementation
1000
x16721
1201A
Important Exam
implementation
,
strings
900
x15719
1200A
Hotelier
brute force
,
data structures
,
implementation
800
x20446
1199B
Water Lily
geometry
,
math
1000
x20639
1199A
City Day
implementation
1000
x14925
1197B
Pillars
greedy
,
implementation
1000
x13891
1197A
DIY Wooden Ladder
greedy
,
math
,
sortings
900
x13559
1196A
Three Piles of Candies
brute force
,
constructive algorithms
,
math
800
x27808
1195B
Sport Mafia
binary search
,
brute force
,
math
1000
x19907
1195A
Drinks Choosing
greedy
,
math
1000
x13139
1194A
Remove a Progression
math
800
x16354
1191A
Tokitsukaze and Enhancement
brute force
800
x18185
1189A
Keanu Reeves
strings
800
x15294
1187A
Stickers and Toys
math
900
x14899
1186A
Vus the Cossack and a Contest
implementation
800
x37710
1185A
Ropewalkers
math
800
x14926
1183B
Equalize Prices
math
900
x18549
1183A
Nearest Interesting Number
implementation
800
x24906
1182A
Filling Shapes
dp
,
math
1000
x31290
1181A
Chunga-Changa
greedy
,
math
1000
x13675
1180A
Alex and a Rhombus
dp
,
implementation
,
math
800
x25332
1178A
Prime Minister
greedy
800
x10449
1177A
Digits Sequence (Easy Edition)
implementation
1000
x5774
1176A
Divide it!
brute force
,
greedy
,
implementation
800
x22981
1175A
From Hero to Zero
implementation
,
math
900
x18275
1174A
Ehab Fails to Be Thanos
constructive algorithms
,
greedy
,
sortings
1000
x17710
1173A
Nauuo and Votes
greedy
800
x16261
1169A
Circle Metro
implementation
,
math
900
x11959
1167A
Telephone Number
brute force
,
greedy
,
strings
800
x19367
1166A
Silent Classroom
combinatorics
,
greedy
900
x14313
1165B
Polycarp Training
data structures
,
greedy
,
sortings
1000
x21205
1163A
Eating Soup
greedy
,
math
900
x13023
1162A
Zoning Restrictions Again
implementation
800
x8269
1159A
A pile of stones
implementation
,
math
800
x12696
1155A
Reverse a Substring
implementation
,
sortings
,
strings
1000
x15287
1154A
Restoring Three Numbers
math
800
x71591
1153A
Serval and Bus
brute force
,
math
1000
x11517
1152A
Neko Finds Grapes
greedy
,
implementation
,
math
800
x15319
1151A
Maxim and Biology
brute force
,
strings
1000
x11223
1150B
Tiling Challenge
greedy
,
implementation
900
x11320
1150A
Stock Arbitraging
greedy
,
implementation
800
x11840
1148A
Another One Bites The Dust
greedy
800
x14926
1146A
Love "A"
implementation
,
strings
800
x21988
1144C
Two Shuffled Sequences
constructive algorithms
,
sortings
1000
x15408
1144B
Parity Alternated Deletions
greedy
,
implementation
,
sortings
900
x17126
1144A
Diverse Strings
implementation
,
strings
800
x19329
1143A
The Doors
implementation
800
x13277
1141B
Maximal Continuous Rest
implementation
900
x21434
1141A
Game 23
implementation
,
math
1000
x32197
1140A
Detective Book
implementation
1000
x12341
1139B
Chocolates
greedy
,
implementation
1000
x16496
1139A
Even Substrings
implementation
,
strings
800
x16816
1138A
Sushi for Two
binary search
,
greedy
,
implementation
900
x18494
1136B
Nastya Is Playing Computer Games
constructive algorithms
,
math
1000
x11729
1136A
Nastya Is Reading a Book
implementation
800
x16432
1133A
Middle of the Contest
implementation
1000
x17527
1132B
Discounts
greedy
,
sortings
900
x13036
1131A
Sea Battle
math
800
x12456
1130A
Be Positive
implementation
800
x11652
1118A
Water Buying
math
800
x20193
1117B
Emotes
greedy
,
math
,
sortings
1000
x14454
1114A
Got Any Grapes?
brute force
,
greedy
,
implementation
800
x18768
1113A
Sasha and His Trip
dp
,
greedy
,
math
900
x17331
1111A
Superhero Transformation
implementation
,
strings
1000
x16900
1110A
Parity
math
900
x15104
1108A
Two distinct points
implementation
800
x21881
1107B
Digital root
math
,
number theory
1000
x16040
1107A
Digits Sequence Dividing
greedy
,
strings
900
x12062
1106C
Lunar New Year and Number Division
greedy
,
implementation
,
math
,
sortings
900
x14719
1106A
Lunar New Year and Cross Counting
implementation
800
x12344
1104A
Splitting into digits
constructive algorithms
,
implementation
,
math
800
x15419
1102A
Integer Sequence Dividing
math
800
x24472
←
1
2
...
8
9
10
11
12
...
15
16
→
User lists
Name