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Contest is running
Codeforces Round #696 (Div. 2)
00:40:01
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Difficulty:
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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
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Problems
#
Name
4A
Watermelon
brute force
,
math
800
x192168
71A
Way Too Long Words
strings
800
x138892
1A
Theatre Square
math
1000
x129261
231A
Team
brute force
,
greedy
800
x109433
158A
Next Round
*special problem
,
implementation
800
x100042
50A
Domino piling
greedy
,
math
800
x90920
118A
String Task
implementation
,
strings
1000
x90741
282A
Bit++
implementation
800
x87814
112A
Petya and Strings
implementation
,
strings
800
x85670
263A
Beautiful Matrix
implementation
800
x85070
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x80462
281A
Word Capitalization
implementation
,
strings
800
x77495
266A
Stones on the Table
implementation
800
x73362
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x71413
96A
Football
implementation
,
strings
900
x70397
69A
Young Physicist
implementation
,
math
1000
x65256
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x63693
791A
Bear and Big Brother
implementation
800
x63011
977A
Wrong Subtraction
implementation
800
x59961
116A
Tram
implementation
800
x59195
58A
Chat room
greedy
,
strings
1000
x58828
617A
Elephant
math
800
x58644
122A
Lucky Division
brute force
,
number theory
1000
x57601
59A
Word
implementation
,
strings
800
x56143
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x55597
160A
Twins
greedy
,
sortings
900
x54929
110A
Nearly Lucky Number
implementation
800
x54584
41A
Translation
implementation
,
strings
800
x53383
734A
Anton and Danik
implementation
,
strings
800
x52736
133A
HQ9+
implementation
900
x50816
271A
Beautiful Year
brute force
800
x50520
467A
George and Accommodation
implementation
800
x50042
677A
Vanya and Fence
implementation
800
x49365
136A
Presents
implementation
800
x48651
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x48259
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x46301
344A
Magnets
implementation
800
x46265
1030A
In Search of an Easy Problem
implementation
800
x45938
131A
cAPS lOCK
implementation
,
strings
1000
x45292
318A
Even Odds
math
900
x45054
705A
Hulk
implementation
800
x44967
486A
Calculating Function
implementation
,
math
800
x44447
479A
Expression
brute force
,
math
1000
x43966
61A
Ultra-Fast Mathematician
implementation
800
x42901
200B
Drinks
implementation
,
math
800
x42754
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x42232
337A
Puzzles
greedy
900
x41273
208A
Dubstep
strings
900
x40867
469A
I Wanna Be the Guy
greedy
,
implementation
800
x40473
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x40419
228A
Is your horseshoe on the other hoof?
implementation
800
x39484
144A
Arrival of the General
implementation
800
x38777
25A
IQ test
brute force
1300
x38120
443A
Anton and Letters
constructive algorithms
,
implementation
800
x37878
1328A
Divisibility Problem
math
800
x37685
268A
Games
brute force
800
x37010
520A
Pangram
implementation
,
strings
800
x36550
785A
Anton and Polyhedrons
implementation
,
strings
800
x36477
1335A
Candies and Two Sisters
math
800
x34986
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x34889
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x34785
996A
Hit the Lottery
dp
,
greedy
800
x34360
451A
Game With Sticks
implementation
900
x34030
230A
Dragons
greedy
,
sortings
1000
x33739
339B
Xenia and Ringroad
implementation
1000
x33451
4C
Registration System
data structures
,
hashing
,
implementation
1300
x33280
510A
Fox And Snake
implementation
800
x32296
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x31923
189A
Cut Ribbon
brute force
,
dp
1300
x31818
1352A
Sum of Round Numbers
implementation
,
math
800
x30869
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x30752
581A
Vasya the Hipster
implementation
,
math
800
x30717
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x30501
1399A
Remove Smallest
greedy
,
sortings
800
x30273
155A
I_love_\%username\%
brute force
800
x30170
1154A
Restoring Three Numbers
math
800
x30098
455A
Boredom
dp
1500
x29865
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x29860
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x29723
1367A
Short Substrings
implementation
,
strings
800
x29366
1343B
Balanced Array
constructive algorithms
,
math
800
x29266
427A
Police Recruits
implementation
800
x29126
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x28159
466A
Cheap Travel
implementation
1200
x28038
500A
New Year Transportation
dfs and similar
,
graphs
,
implementation
1000
x27877
1343A
Candies
brute force
,
math
900
x27865
758A
Holiday Of Equality
implementation
,
math
800
x27661
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x27319
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x26990
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x26954
313A
Ilya and Bank Account
implementation
,
number theory
900
x26906
1360A
Minimal Square
greedy
,
math
800
x26812
1399B
Gifts Fixing
greedy
800
x26742
1374A
Required Remainder
math
800
x26687
1367B
Even Array
greedy
,
math
800
x26531
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x26384
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x26210
1360B
Honest Coach
greedy
,
sortings
800
x26207
379A
New Year Candles
implementation
1000
x26190
703A
Mishka and Game
implementation
800
x26188
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