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Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
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combine-tags-by-or
*combine tags by OR
2-sat
binary search
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chinese remainder theorem
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dfs and similar
divide and conquer
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expression parsing
fft
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games
geometry
graph matchings
graphs
greedy
hashing
implementation
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probabilities
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Problems
#
Name
171F
ucyhf
*special problem
,
brute force
,
implementation
,
number theory
1600
x1244
1571A
Sequence of Comparisons
*special problem
800
x1239
1812C
Digits
*special problem
x1219
1331E
Jordan Smiley
*special problem
,
dfs and similar
,
geometry
,
implementation
x1197
1346B
Boot Camp
*special problem
,
greedy
1400
x1179
929C
Красивая команда
*special problem
,
combinatorics
,
math
1700
x1141
1402A
Fancy Fence
*special problem
,
data structures
,
dsu
,
implementation
,
math
,
sortings
1800
x1138
172C
Bus
*special problem
,
implementation
,
sortings
1500
x1129
1532A
A+B (Trial Problem)
*special problem
x1128
1531B1
Мониторинг
*special problem
,
*special problem
x1087
171C
A Piece of Cake
*special problem
,
implementation
2000
x1052
1001A
Generate plus state or minus state
*special problem
1100
x1002
1431B
Polycarp and the Language of Gods
*special problem
,
implementation
,
two pointers
1400
x999
1192B
Dynamic Diameter
*special problem
,
data structures
,
dfs and similar
,
divide and conquer
,
trees
x998
64B
Expression
*special problem
,
expression parsing
1500
x997
1170B
Bad Days
*special problem
,
implementation
x992
784F
Crunching Numbers Just for You
*special problem
,
implementation
1900
x992
1533A
Travel to Bertown
*special problem
,
implementation
,
math
x990
159E
Zebra Tower
*special problem
,
data structures
,
greedy
,
sortings
1700
x988
1812F
Factorization
*special problem
,
number theory
x953
523B
Mean Requests
*special problem
,
implementation
1500
x940
656D
Rosetta Problem
*special problem
2100
x939
1769C1
Подкрутка I
*special problem
,
brute force
,
dp
,
greedy
1200
x928
1769C2
Подкрутка II
*special problem
,
dp
1300
x912
644C
Hostname Aliases
*special problem
,
binary search
,
data structures
,
implementation
,
sortings
,
strings
2100
x908
72C
Extraordinarily Nice Numbers
*special problem
,
math
1200
x899
171G
Mysterious numbers - 2
*special problem
1600
x889
1275A
Скрытый друг
*special problem
x885
100A
Carpeting the Room
*special problem
,
implementation
1100
x883
656F
Ace It!
*special problem
1900
x880
928C
Dependency management
*special problem
,
graphs
,
implementation
1900
x879
1297A
Likes Display
*special problem
,
implementation
x873
1057C
Tanya and Colored Candies
*special problem
,
dp
2000
x865
1769B2
Копирование файлов II
*special problem
,
binary search
,
brute force
,
math
1400
x854
784B
Kids' Riddle
*special problem
2000
x832
1275B
Code Review
*special problem
x818
1532B
Frog Jumping
*special problem
,
math
x816
928D
Autocompletion
*special problem
,
strings
,
trees
1900
x801
1387B2
Village (Maximum)
*special problem
,
dfs and similar
,
trees
2500
x796
162A
Pentagonal numbers
*special problem
,
implementation
1100
x789
683A
The Check of the Point
*special problem
,
geometry
1200
x785
162C
Prime factorization
*special problem
1800
x772
1170C
Minus and Minus Give Plus
*special problem
,
implementation
,
strings
x770
1531B2
Мониторинг
*special problem
x764
153A
A + B
*special problem
1600
x759
1211B
Traveling Around the Golden Ring of Berland
*special problem
,
implementation
1500
x753
188A
Hexagonal Numbers
*special problem
1100
x753
1533B
Nearest Point Function
*special problem
,
implementation
x749
1505D
Xenolith? Hippodrome?
*special problem
,
number theory
1800
x739
784G
BF Calculator
*special problem
2000
x720
656E
Out of Controls
*special problem
2000
x716
1001B
Generate Bell state
*special problem
1400
x704
188B
A + Reverse B
*special problem
,
implementation
1300
x703
1431C
Black Friday
*special problem
,
implementation
1600
x692
1571B
Epic Novel
*special problem
,
math
1300
x676
1001D
Distinguish plus state and minus state
*special problem
1400
x675
656C
Without Text
*special problem
2000
x675
784C
INTERCALC
*special problem
,
implementation
1800
x673
1387A
Graph
*special problem
,
binary search
,
dfs and similar
,
dp
,
math
,
ternary search
2100
x670
1275C
#define Задача B ...
*special problem
x668
530A
Quadratic equation
*special problem
1500
x668
470A
Crystal Ball Sequence
*special problem
,
implementation
1400
x664
188D
Asterisks
*special problem
,
implementation
1100
x648
1001C
Generate GHZ state
*special problem
1400
x646
1531C
Симметричный амфитеатр
*special problem
,
constructive algorithms
,
dp
x645
1532C
Uniform String
*special problem
,
implementation
x633
661A
Lazy Caterer Sequence
*special problem
1300
x627
1331H
It's showtime
*special problem
x618
1356A1
Distinguish I from X
*special problem
x598
1910B
Security Guard
*special problem
,
greedy
1600
x580
1532D
Teams Forming
*special problem
,
sortings
x579
1346C
Spring Cleaning
*special problem
,
greedy
,
sortings
1600
x579
1910C
Poisonous Swamp
*special problem
,
*special problem
,
implementation
,
implementation
1600
x569
409E
Dome
*special problem
1800
x562
1331F
Elementary!
*special problem
,
brute force
,
dp
,
strings
x552
1001E
Distinguish Bell states
*special problem
1600
x551
530C
Diophantine equation
*special problem
1500
x539
1663E
Are You Safe?
*special problem
,
implementation
x538
1505I
Mysterious language again, seriously?
*special problem
2200
x538
530B
String inside out
*special problem
1600
x537
1488B
RBS Deletion
*special problem
,
greedy
1800
x536
100B
Friendly Numbers
*special problem
,
implementation
1500
x534
1001G
Oracle for f(x) = k-th element of x
*special problem
1400
x531
1001F
Distinguish multi-qubit basis states
*special problem
1300
x531
1001H
Oracle for f(x) = parity of the number of 1s in x
*special problem
1200
x525
1812G
Colour Vision
*special problem
,
implementation
x523
130B
Gnikool Ssalg
*special problem
,
implementation
,
strings
1400
x515
100C
A+B
*special problem
,
implementation
1400
x514
130H
Balanced brackets
*special problem
1600
x500
409G
On a plane
*special problem
,
geometry
2200
x499
188E
HQ9+
*special problem
,
implementation
1400
x489
1331G
Lingua Romana
*special problem
x486
130C
Decimal sum
*special problem
1500
x484
1356A2
Distinguish I from Z
*special problem
x483
1505H
L BREAK into program
*special problem
2500
x481
1346D
Constructing the Dungeon
*special problem
,
graphs
,
greedy
1600
x476
1211C
Ice Cream
*special problem
,
greedy
,
sortings
1700
x476
345A
Expecting Trouble
*special problem
,
probabilities
1500
x476
656G
You're a Professional
*special problem
1900
x474
1533C
Sweets
*special problem
,
data structures
,
implementation
x456
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