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63 problems · filtered by 4 tags
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Name
✎
Rating
↕
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2242E
Product of Closures
bitmasks
brute force
constructive algorithms
greedy
implementation
math
number theory
+
2200
1.4k
2178D
Xmas or Hysteria
constructive algorithms
greedy
implementation
math
+
1700
7k
2163B
Siga ta Kymata
constructive algorithms
greedy
implementation
math
+
1700
9.5k
2157C
Meximum Array 2
constructive algorithms
greedy
implementation
math
+
1400
10.9k
2108B
SUMdamental Decomposition
bitmasks
constructive algorithms
greedy
implementation
math
+
1300
14.9k
2078B
Vicious Labyrinth
constructive algorithms
graphs
greedy
implementation
math
+
1100
18.6k
2035E
Monster
binary search
brute force
constructive algorithms
greedy
implementation
math
ternary search
+
2300
2k
2032B
Medians
constructive algorithms
greedy
implementation
math
+
1100
21.1k
2032E
Balanced
constructive algorithms
data structures
greedy
implementation
math
+
2400
1.4k
2022A
Bus to Pénjamo
constructive algorithms
greedy
implementation
math
+
800
17.4k
1995C
Squaring
brute force
constructive algorithms
greedy
implementation
math
number theory
+
1800
10.4k
1983B
Corner Twist
constructive algorithms
greedy
implementation
math
+
1200
18.6k
1981C
Turtle and an Incomplete Sequence
bitmasks
brute force
constructive algorithms
greedy
implementation
math
+
1800
6.4k
1980E
Permutation of Rows and Columns
constructive algorithms
data structures
greedy
hashing
implementation
math
matrices
sortings
+
1600
13.3k
1978C
Manhattan Permutations
constructive algorithms
data structures
greedy
implementation
math
+
1300
18k
1973C
Cat, Fox and Double Maximum
constructive algorithms
greedy
implementation
math
sortings
+
1700
10k
1956D
Nene and the Mex Operator
bitmasks
brute force
constructive algorithms
divide and conquer
dp
greedy
implementation
math
+
2000
4.9k
1951E
No Palindromes
brute force
constructive algorithms
divide and conquer
greedy
hashing
implementation
math
strings
+
2000
4.6k
1918A
Brick Wall
constructive algorithms
greedy
implementation
math
+
800
32.6k
1916C
Training Before the Olympiad
constructive algorithms
games
greedy
implementation
math
+
1200
20.1k
1896F
Bracket Xoring
constructive algorithms
greedy
implementation
math
+
2600
1k
1868B1
Candy Party (Easy Version)
bitmasks
constructive algorithms
graphs
greedy
implementation
math
+
1700
8.4k
1868B2
Candy Party (Hard Version)
bitmasks
constructive algorithms
dp
greedy
implementation
math
+
2100
2.8k
1864A
Increasing and Decreasing
constructive algorithms
greedy
implementation
math
+
800
21.5k
1832D2
Red-Blue Operations (Hard Version)
binary search
constructive algorithms
greedy
implementation
math
+
2400
2.4k
1799E
City Union
constructive algorithms
dfs and similar
dsu
geometry
greedy
implementation
math
+
2300
1.4k
1788B
Sum of Two Numbers
constructive algorithms
greedy
implementation
math
probabilities
+
1100
22.6k
1746C
Permutation Operations
constructive algorithms
greedy
implementation
math
+
1300
14.2k
1720E
Misha and Paintings
constructive algorithms
data structures
greedy
implementation
math
+
2700
1k
1697E
Coloring
brute force
combinatorics
constructive algorithms
dp
geometry
graphs
greedy
implementation
math
+
2400
1.5k
1696C
Fishingprince Plays With Array
constructive algorithms
greedy
implementation
math
+
1400
12.7k
1682C
LIS or Reverse LIS?
constructive algorithms
greedy
implementation
math
+
1400
16.6k
1659A
Red Versus Blue
constructive algorithms
greedy
implementation
math
+
1000
33.1k
1659D
Reverse Sort Sum
constructive algorithms
data structures
greedy
implementation
math
two pointers
+
1900
4.5k
1628A
Meximum Array
binary search
constructive algorithms
greedy
implementation
math
two pointers
+
1400
17.2k
1628C
Grid Xor
constructive algorithms
greedy
implementation
interactive
math
+
2300
3.6k
1619E
MEX and Increments
constructive algorithms
data structures
dp
greedy
implementation
math
sortings
+
1700
10.3k
1567D
Expression Evaluation Error
constructive algorithms
greedy
implementation
math
+
2000
4.9k
1537C
Challenging Cliffs
constructive algorithms
greedy
implementation
math
+
1200
30.7k
1504B
Flip the Bits
constructive algorithms
greedy
implementation
math
+
1200
27.1k
1487C
Minimum Ties
brute force
constructive algorithms
dfs and similar
graphs
greedy
implementation
math
+
1500
15.6k
1455E
Four Points
brute force
constructive algorithms
flows
geometry
greedy
implementation
math
ternary search
+
2400
1.7k
1430C
Numbers on Whiteboard
constructive algorithms
data structures
greedy
implementation
math
+
1000
28.7k
1421D
Hexagons
brute force
constructive algorithms
greedy
implementation
math
shortest paths
+
1900
4.4k
1419B
Stairs
brute force
constructive algorithms
greedy
implementation
math
+
1200
17.1k
1380D
Berserk And Fireball
constructive algorithms
greedy
implementation
math
two pointers
+
2000
5.1k
1348D
Phoenix and Science
binary search
constructive algorithms
greedy
implementation
math
+
1900
9.4k
1329A
Dreamoon Likes Coloring
constructive algorithms
greedy
implementation
math
+
1800
9.8k
1313B
Different Rules
constructive algorithms
greedy
implementation
math
+
1700
7.1k
1305E
Kuroni and the Score Distribution
constructive algorithms
greedy
implementation
math
+
2200
3.3k
1266D
Decreasing Debts
constructive algorithms
data structures
graphs
greedy
implementation
math
two pointers
+
2000
3.9k
1158A
The Party and Sweets
binary search
constructive algorithms
greedy
implementation
math
sortings
two pointers
+
1500
8.5k
1120B
Once in a casino
constructive algorithms
greedy
implementation
math
+
2700
481
1119C
Ramesses and Corner Inversion
constructive algorithms
greedy
implementation
math
+
1500
7.2k
1004B
Sonya and Exhibition
constructive algorithms
greedy
implementation
math
+
1300
10k
732C
Sanatorium
binary search
constructive algorithms
greedy
implementation
math
+
1200
10.2k
708B
Recover the String
constructive algorithms
greedy
implementation
math
+
1900
3.5k
662D
International Olympiad
constructive algorithms
greedy
implementation
math
+
2000
1.7k
570B
Simple Game
constructive algorithms
games
greedy
implementation
math
+
1300
17k
553B
Kyoya and Permutation
binary search
combinatorics
constructive algorithms
greedy
implementation
math
+
1900
2.3k
550E
Brackets in Implications
constructive algorithms
greedy
implementation
math
+
2200
1.5k
500C
New Year Book Reading
constructive algorithms
greedy
implementation
math
+
1600
6.1k
353B
Two Heaps
combinatorics
constructive algorithms
greedy
implementation
math
sortings
+
1900
2.4k
showing 1–63 of 63