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Name
2250B
String Construction
constructive algorithms
,
constructive algorithms
1000
x14674
2247B
Yet Another Constructive
constructive algorithms
900
x15936
2247A
Zero Sum
constructive algorithms
,
dp
,
number theory
800
x21680
2246B
ezraft and Array
constructive algorithms
,
number theory
900
x17120
2246A
farmpiggie and Subset Sum
constructive algorithms
800
x19459
2244C
Stepan and Permutation
constructive algorithms
,
dfs and similar
,
dsu
,
greedy
,
math
,
number theory
,
sortings
,
sortings
,
sortings
1100
x17448
2241B
Good times Good times
constructive algorithms
,
dfs and similar
,
math
1100
x21160
2234B
Palindrome, Twelve and Two Terms
brute force
,
constructive algorithms
,
math
800
x22611
2233B
Different Distances
constructive algorithms
900
x18353
2231B
Another Sorting Problem
constructive algorithms
1100
x18473
2231A
Construct an Array
constructive algorithms
800
x25872
2229C1
We Be Flipping (Easy Version)
constructive algorithms
,
greedy
900
x16174
2227C
Snowfall
constructive algorithms
,
math
800
x23480
2224A
Zhily and Array Operating
constructive algorithms
,
greedy
800
x12245
2218D
The 67th OEIS Problem
constructive algorithms
,
greedy
,
greedy
,
greedy
,
math
,
math
,
number theory
1100
x22259
2218C
The 67th Permutation Problem
constructive algorithms
,
greedy
,
math
800
x31715
2211B
Mickey Mouse Constructive
constructive algorithms
,
dp
,
greedy
,
math
1100
x13205
2210A
A Simple Sequence
constructive algorithms
,
dp
,
greedy
,
number theory
800
x25026
2208A
Bingo Candies
constructive algorithms
,
math
800
x22290
2205A
Simons and Making It Beautiful
brute force
,
constructive algorithms
,
constructive algorithms
,
constructive algorithms
,
constructive algorithms
,
constructive algorithms
,
constructive algorithms
800
x18794
2192B
Flipping Binary String
constructive algorithms
,
strings
1000
x16180
2191B
MEX Reordering
constructive algorithms
,
sortings
1000
x21186
2191A
Array Coloring
constructive algorithms
800
x29018
2188A
Divisible Permutation
constructive algorithms
800
x26903
2185A
Perfect Root
constructive algorithms
,
math
800
x46611
2183B
Yet Another MEX Problem
constructive algorithms
,
greedy
1100
x16846
2182A
New Year String
constructive algorithms
,
greedy
,
implementation
,
strings
800
x26470
2167C
Isamatdin and His Magic Wand!
constructive algorithms
,
greedy
,
implementation
,
sortings
800
x37589
2162C
Beautiful XOR
bitmasks
,
constructive algorithms
,
greedy
1100
x22450
2162B
Beautiful String
brute force
,
constructive algorithms
1000
x29150
2158A
Suspension
constructive algorithms
,
greedy
,
math
800
x24323
2156A
Pizza Time
brute force
,
constructive algorithms
,
greedy
800
x27765
2155B
Abraham's Great Escape
constructive algorithms
,
graphs
1100
x18034
2154B
Make it Zigzag
constructive algorithms
,
greedy
1000
x20775
2148D
Destruction of the Dandelion Fields
constructive algorithms
,
greedy
,
sortings
1000
x28195
2147B
Multiple Construction
constructive algorithms
1000
x19698
2147A
Shortest Increasing Path
constructive algorithms
,
greedy
800
x21168
2144B
Maximum Cost Permutation
constructive algorithms
,
greedy
1000
x19497
2144A
Cut the Array
brute force
,
constructive algorithms
,
math
,
number theory
800
x22505
2140B
Another Divisibility Problem
constructive algorithms
,
math
,
number theory
900
x23510
2138A
Cake Assignment
bitmasks
,
constructive algorithms
,
greedy
1100
x17875
2137B
Fun Permutation
constructive algorithms
,
math
,
number theory
900
x27664
2137A
Collatz Conjecture
constructive algorithms
,
math
800
x36607
2136B
Like the Bitset
constructive algorithms
,
greedy
,
two pointers
900
x21872
2134A
Painting With Two Colors
constructive algorithms
,
implementation
,
math
800
x27570
2131B
Alternating Series
constructive algorithms
,
greedy
,
math
800
x31686
2130B
Pathless
constructive algorithms
1100
x22208
2128B
Deque Process
constructive algorithms
,
greedy
,
sortings
,
two pointers
1100
x22285
2127A
Mix Mex Max
constructive algorithms
,
greedy
,
math
800
x22037
2125A
Difficult Contest
constructive algorithms
,
implementation
,
sortings
,
strings
800
x28713
2122A
Greedy Grid
constructive algorithms
,
greedy
800
x21507
2121B
Above the Clouds
constructive algorithms
,
greedy
,
strings
800
x33005
2118A
Equal Subsequences
constructive algorithms
,
greedy
800
x29538
2117B
Shrink
constructive algorithms
800
x32759
2106B
St. Chroma
constructive algorithms
,
greedy
,
math
900
x29068
2104C
Card Game
brute force
,
constructive algorithms
,
games
,
greedy
,
math
1100
x17854
2102A
Dinner Time
constructive algorithms
,
math
900
x22108
2096A
Wonderful Sticks
constructive algorithms
,
greedy
800
x20959
2094B
Bobritto Bandito
brute force
,
constructive algorithms
800
x33982
2092B
Lady Bug
brute force
,
constructive algorithms
,
implementation
,
math
1000
x25528
2091C
Combination Lock
constructive algorithms
,
greedy
1000
x29547
2085A
Serval and String Theory
constructive algorithms
,
implementation
900
x24044
2084A
Max and Mod
constructive algorithms
,
math
800
x17622
2082A
Binary Matrix
constructive algorithms
,
greedy
800
x11351
2078B
Vicious Labyrinth
constructive algorithms
,
graphs
,
greedy
,
implementation
,
math
1100
x18711
2072B
Having Been a Treasurer in the Past, I Help Goblins Deceive
combinatorics
,
constructive algorithms
,
strings
900
x31656
2071B
Perfecto
brute force
,
constructive algorithms
,
greedy
,
math
1100
x21394
2067A
Adjacent Digit Sums
brute force
,
constructive algorithms
,
math
800
x26054
2065A
Skibidus and Amog'u
brute force
,
constructive algorithms
,
greedy
,
implementation
,
strings
800
x57308
2064B
Variety is Discouraged
binary search
,
constructive algorithms
,
greedy
,
two pointers
1100
x20522
2063B
Subsequence Update
constructive algorithms
,
data structures
,
greedy
,
sortings
1100
x23728
2062A
String
constructive algorithms
,
greedy
,
math
,
strings
800
x28653
2059A
Milya and Two Arrays
constructive algorithms
,
greedy
,
sortings
800
x29522
2057A
MEX Table
constructive algorithms
,
math
800
x27827
2056A
Shape Perimeter
constructive algorithms
,
math
800
x27015
2055B
Crafting
constructive algorithms
,
greedy
,
sortings
1000
x27856
2055A
Two Frogs
constructive algorithms
,
games
,
greedy
,
math
800
x34085
2051C
Preparing for the Exam
constructive algorithms
,
implementation
1000
x28671
2048B
Kevin and Permutation
constructive algorithms
,
greedy
900
x21064
2044D
Harder Problem
constructive algorithms
,
greedy
,
math
1100
x24714
2040B
Paint a Strip
constructive algorithms
,
greedy
,
math
1000
x24706
2039B
Shohag Loves Strings
constructive algorithms
,
greedy
,
implementation
,
strings
1000
x17761
2039A
Shohag Loves Mod
constructive algorithms
,
number theory
800
x18336
2037C
Superultra's Favorite Permutation
constructive algorithms
,
greedy
,
math
,
number theory
1000
x26229
2035B
Everyone Loves Tres
constructive algorithms
,
greedy
,
math
,
number theory
900
x21064
2033B
Sakurako and Water
brute force
,
constructive algorithms
,
greedy
900
x29418
2033A
Sakurako and Kosuke
constructive algorithms
,
implementation
,
math
800
x41884
2032B
Medians
constructive algorithms
,
greedy
,
implementation
,
math
1100
x21175
2031A
Penchick and Modern Monument
constructive algorithms
,
dp
,
greedy
,
math
800
x21363
2030B
Minimise Oneness
combinatorics
,
constructive algorithms
,
games
,
math
800
x24170
2030A
A Gift From Orangutan
constructive algorithms
,
greedy
,
math
,
sortings
800
x27970
2029B
Replacement
constructive algorithms
,
games
,
strings
1100
x12034
2026A
Perpendicular Segments
constructive algorithms
,
geometry
,
greedy
,
math
900
x20654
2024B
Buying Lemonade
binary search
,
constructive algorithms
,
sortings
1100
x17448
2022A
Bus to Pénjamo
constructive algorithms
,
greedy
,
implementation
,
math
800
x17494
2013B
Battle for Survive
constructive algorithms
,
greedy
,
math
900
x28837
2013A
Zhan's Blender
constructive algorithms
,
math
800
x31623
2008A
Sakurako's Exam
brute force
,
constructive algorithms
,
greedy
,
math
800
x42553
2005A
Simple Palindrome
combinatorics
,
constructive algorithms
,
greedy
,
math
900
x26875
2002B
Removals Game
constructive algorithms
,
games
1000
x23515
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