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combine-tags-by-or
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2-sat
binary search
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chinese remainder theorem
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dfs and similar
divide and conquer
dp
dsu
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geometry
graph matchings
graphs
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Custom test
Problems
#
Name
4A
Watermelon
brute force
,
math
800
x481717
71A
Way Too Long Words
strings
800
x353761
231A
Team
brute force
,
greedy
800
x299393
1A
Theatre Square
math
1000
x245900
282A
Bit++
implementation
800
x236349
158A
Next Round
*special problem
,
implementation
800
x232569
50A
Domino piling
greedy
,
math
800
x228851
263A
Beautiful Matrix
implementation
800
x224781
112A
Petya and Strings
implementation
,
strings
800
x209265
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x198358
281A
Word Capitalization
implementation
,
strings
800
x196187
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x193352
118A
String Task
implementation
,
strings
1000
x181308
791A
Bear and Big Brother
implementation
800
x178978
266A
Stones on the Table
implementation
800
x178134
617A
Elephant
math
800
x170249
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x167751
59A
Word
implementation
,
strings
800
x162138
69A
Young Physicist
implementation
,
math
1000
x155099
977A
Wrong Subtraction
implementation
800
x155012
96A
Football
implementation
,
strings
900
x149141
110A
Nearly Lucky Number
implementation
800
x142614
734A
Anton and Danik
implementation
,
strings
800
x140308
41A
Translation
implementation
,
strings
800
x135001
116A
Tram
implementation
800
x132181
677A
Vanya and Fence
implementation
800
x130758
271A
Beautiful Year
brute force
800
x127638
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x126834
58A
Chat room
greedy
,
strings
1000
x122246
1030A
In Search of an Easy Problem
implementation
800
x120025
122A
Lucky Division
brute force
,
number theory
1000
x116035
467A
George and Accommodation
implementation
800
x113816
344A
Magnets
implementation
800
x111842
160A
Twins
greedy
,
sortings
900
x110877
486A
Calculating Function
implementation
,
math
800
x109418
136A
Presents
implementation
800
x109176
200B
Drinks
implementation
,
math
800
x107812
318A
Even Odds
math
900
x106239
61A
Ultra-Fast Mathematician
implementation
800
x103647
228A
Is your horseshoe on the other hoof?
implementation
800
x102014
133A
HQ9+
implementation
900
x100023
705A
Hulk
implementation
800
x99438
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x94490
1328A
Divisibility Problem
math
800
x93385
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91401
520A
Pangram
implementation
,
strings
800
x89846
144A
Arrival of the General
implementation
800
x89011
479A
Expression
brute force
,
math
1000
x88634
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87123
996A
Hit the Lottery
dp
,
greedy
800
x84230
443A
Anton and Letters
constructive algorithms
,
implementation
800
x83977
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x83933
208A
Dubstep
strings
900
x83577
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x82448
785A
Anton and Polyhedrons
implementation
,
strings
800
x82224
131A
cAPS lOCK
implementation
,
strings
1000
x81235
25A
IQ test
brute force
1300
x81138
268A
Games
brute force
800
x80939
1335A
Candies and Two Sisters
math
800
x78636
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77904
4C
Registration System
data structures
,
hashing
,
implementation
1300
x77199
510A
Fox And Snake
implementation
800
x77029
337A
Puzzles
greedy
900
x75572
230A
Dragons
greedy
,
sortings
1000
x74352
427A
Police Recruits
implementation
800
x72496
1352A
Sum of Round Numbers
implementation
,
math
800
x71985
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x71157
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70888
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70776
155A
I_love_\%username\%
brute force
800
x70600
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x69866
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67307
581A
Vasya the Hipster
implementation
,
math
800
x67149
339B
Xenia and Ringroad
implementation
1000
x66394
1154A
Restoring Three Numbers
math
800
x66381
151A
Soft Drinking
implementation
,
math
800
x65787
1742A
Sum
implementation
800
x64648
1399A
Remove Smallest
greedy
,
sortings
800
x62761
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x62688
451A
Game With Sticks
implementation
900
x62633
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62506
189A
Cut Ribbon
brute force
,
dp
1300
x62483
630A
Again Twenty Five!
number theory
800
x61994
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60374
1512A
Spy Detected!
brute force
,
implementation
800
x59942
1692A
Marathon
implementation
800
x59879
466A
Cheap Travel
implementation
1200
x59550
32B
Borze
expression parsing
,
implementation
800
x58741
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x58396
1676A
Lucky?
implementation
800
x58020
758A
Holiday Of Equality
implementation
,
math
800
x57308
1669A
Division?
implementation
800
x57155
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x57003
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56654
579A
Raising Bacteria
bitmasks
1000
x56256
1560A
Dislike of Threes
implementation
800
x55891
1807A
Plus or Minus
implementation
800
x55738
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55540
1475A
Odd Divisor
math
,
number theory
900
x55188
1791A
Codeforces Checking
implementation
,
strings
800
x54958
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