Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 945 (Div. 2)
42:01:12
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
4A
Watermelon
brute force
,
math
800
x483371
71A
Way Too Long Words
strings
800
x354954
231A
Team
brute force
,
greedy
800
x300434
1A
Theatre Square
math
1000
x246413
282A
Bit++
implementation
800
x237301
158A
Next Round
*special problem
,
implementation
800
x233172
50A
Domino piling
greedy
,
math
800
x229511
263A
Beautiful Matrix
implementation
800
x225539
112A
Petya and Strings
implementation
,
strings
800
x209873
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x198937
281A
Word Capitalization
implementation
,
strings
800
x196786
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x194041
118A
String Task
implementation
,
strings
1000
x181747
791A
Bear and Big Brother
implementation
800
x179596
266A
Stones on the Table
implementation
800
x178624
617A
Elephant
math
800
x170773
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x168278
59A
Word
implementation
,
strings
800
x162714
69A
Young Physicist
implementation
,
math
1000
x155498
977A
Wrong Subtraction
implementation
800
x155495
96A
Football
implementation
,
strings
900
x149551
110A
Nearly Lucky Number
implementation
800
x143062
734A
Anton and Danik
implementation
,
strings
800
x140771
41A
Translation
implementation
,
strings
800
x135434
116A
Tram
implementation
800
x132518
677A
Vanya and Fence
implementation
800
x131192
271A
Beautiful Year
brute force
800
x128081
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x127170
58A
Chat room
greedy
,
strings
1000
x122509
1030A
In Search of an Easy Problem
implementation
800
x120417
122A
Lucky Division
brute force
,
number theory
1000
x116423
467A
George and Accommodation
implementation
800
x114157
344A
Magnets
implementation
800
x112202
160A
Twins
greedy
,
sortings
900
x111163
486A
Calculating Function
implementation
,
math
800
x109759
136A
Presents
implementation
800
x109475
200B
Drinks
implementation
,
math
800
x108167
318A
Even Odds
math
900
x106523
61A
Ultra-Fast Mathematician
implementation
800
x103928
228A
Is your horseshoe on the other hoof?
implementation
800
x102336
133A
HQ9+
implementation
900
x100247
705A
Hulk
implementation
800
x99704
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x94735
1328A
Divisibility Problem
math
800
x93706
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91636
520A
Pangram
implementation
,
strings
800
x90129
144A
Arrival of the General
implementation
800
x89265
479A
Expression
brute force
,
math
1000
x88952
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87353
996A
Hit the Lottery
dp
,
greedy
800
x84539
443A
Anton and Letters
constructive algorithms
,
implementation
800
x84207
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x84136
208A
Dubstep
strings
900
x83823
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x82600
785A
Anton and Polyhedrons
implementation
,
strings
800
x82506
131A
cAPS lOCK
implementation
,
strings
1000
x81401
25A
IQ test
brute force
1300
x81383
268A
Games
brute force
800
x81189
1335A
Candies and Two Sisters
math
800
x78876
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x78099
4C
Registration System
data structures
,
hashing
,
implementation
1300
x77422
510A
Fox And Snake
implementation
800
x77332
337A
Puzzles
greedy
900
x75735
230A
Dragons
greedy
,
sortings
1000
x74518
427A
Police Recruits
implementation
800
x72713
1352A
Sum of Round Numbers
implementation
,
math
800
x72317
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x71329
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x71095
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x71039
155A
I_love_\%username\%
brute force
800
x70755
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x70145
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67529
581A
Vasya the Hipster
implementation
,
math
800
x67315
1154A
Restoring Three Numbers
math
800
x66555
339B
Xenia and Ringroad
implementation
1000
x66520
151A
Soft Drinking
implementation
,
math
800
x66035
1742A
Sum
implementation
800
x65016
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x63026
1399A
Remove Smallest
greedy
,
sortings
800
x62901
189A
Cut Ribbon
brute force
,
dp
1300
x62869
451A
Game With Sticks
implementation
900
x62815
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62648
630A
Again Twenty Five!
number theory
800
x62194
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60613
1692A
Marathon
implementation
800
x60170
1512A
Spy Detected!
brute force
,
implementation
800
x60107
466A
Cheap Travel
implementation
1200
x59706
32B
Borze
expression parsing
,
implementation
800
x58986
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x58568
1676A
Lucky?
implementation
800
x58264
758A
Holiday Of Equality
implementation
,
math
800
x57475
1669A
Division?
implementation
800
x57405
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x57114
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56769
579A
Raising Bacteria
bitmasks
1000
x56472
1807A
Plus or Minus
implementation
800
x56047
1560A
Dislike of Threes
implementation
800
x56038
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55681
1475A
Odd Divisor
math
,
number theory
900
x55437
1791A
Codeforces Checking
implementation
,
strings
800
x55245
←
1
2
3
...
95
96
→
User lists
Name