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Random
Hot problems
CCC '16 S4 - Combining Riceballs
CCC '24 S2 - Heavy-Light Composition
Summer Institute '17 Contest 3 P5 - Balanced Cycles
Appleby Contest '19 P5 - Matrix Operation
EGOI '23 P4 - Bikes vs Cars
Cheerio Contest 1 S2 - School Expansion
WC '96 P6 - Bases Multiplication
Problem ▾
Category
Points
AC %
Users
Evan's Cube
Uncategorized
12p
27.1%
8
ETSR '23 Onsite Round 2 Problem 3 - Trees
Uncategorized
30p
2.2%
8
ETSR '23 Onsite Round 2 Problem 2 - Exponents
Uncategorized
25p
4.1%
13
ETSR '23 Onsite Round 2 Problem 1 - Bracket
Uncategorized
12p
8.4%
26
ETSR '23 Onsite Round 1 Problem 3 - Travel
Uncategorized
17p
4.8%
20
ETSR '23 Onsite Round 1 Problem 2 - Origami
Uncategorized
15p
21.0%
24
ETSR '23 Onsite Round 1 Problem 1 - Arithmetic
Uncategorized
20p
4.3%
16
ETSR '23 Online Round 2 Problem 4 - Queue
Uncategorized
17p
5.0%
15
ETSR '23 Online Round 2 Problem 3 - Stone Game
Uncategorized
15p
5.1%
44
ETSR '23 Online Round 2 Problem 1 - Pencil
Uncategorized
3p
68.9%
144
ETSR '23 Online Round 2 Problem 2 - Equation
Uncategorized
15p
4.4%
35
Equivalent Addresses
Uncategorized
7
32.3%
19
Encode
Uncategorized
5
28.5%
246
Emoji Search
Uncategorized
5
47.7%
112
EGOI '23 P8 - Guessing Game
EGOI
50p
4.0%
7
EGOI '23 P7 - Sopsug
EGOI
17p
7.8%
13
EGOI '23 P6 - Candy
EGOI
12p
22.0%
38
EGOI '23 P5 - Carnival General
EGOI
10p
25.0%
50
EGOI '23 P4 - Bikes vs Cars
EGOI
20p
11.8%
11
EGOI '23 P3 - Find the Box
EGOI
17p
16.4%
17
EGOI '23 P2 - Padel Prize Pursuit
EGOI
10p
19.8%
32
EGOI '23 P1 - Inflation
EGOI
7p
27.9%
132
EGOI '22 P6 - Superpiece
EGOI
20p
5.0%
8
EGOI '22 P5 - Data Centers
EGOI
10p
33.6%
31
EGOI '22 P3 - Social Engineering
EGOI
15p
7.1%
16
EGOI '22 P2 - Lego Wall
EGOI
15p
12.1%
18
EGOI '22 P1 - SubsetMex
EGOI
10p
36.8%
58
EGOI '21 P2 - Luna Likes Love
EGOI
12p
25.9%
43
EGOI '21 P1 - Zeros
EGOI
7p
20.8%
72
Educational DP Contest AtCoder Z - Frog 3
Uncategorized
20
38.5%
161
Educational DP Contest AtCoder Y - Grid 2
Uncategorized
17
31.9%
103
Educational DP Contest AtCoder X - Tower
Uncategorized
20
49.6%
69
Educational DP Contest AtCoder W - Intervals
Uncategorized
20
49.0%
77
Educational DP Contest AtCoder V - Subtree
Uncategorized
20
29.6%
99
Educational DP Contest AtCoder U - Grouping
Uncategorized
15
34.8%
84
Educational DP Contest AtCoder T - Permutation
Uncategorized
15
58.4%
116
Educational DP Contest AtCoder S - Digit Sum
Uncategorized
12
32.0%
118
Educational DP Contest AtCoder R - Walk
Uncategorized
15
64.2%
137
Educational DP Contest AtCoder Q - Flowers
Uncategorized
15
50.4%
278
Educational DP Contest AtCoder P - Independent Set
Uncategorized
12
35.9%
313
Educational DP Contest AtCoder O - Matching
Uncategorized
12
57.9%
328
Educational DP Contest AtCoder N - Slimes
Uncategorized
12
47.8%
407
Educational DP Contest AtCoder M - Candies
Uncategorized
12
34.3%
268
Educational DP Contest AtCoder L - Deque
Uncategorized
10
54.8%
462
Educational DP Contest AtCoder K - Stones
Uncategorized
10
53.1%
451
Educational DP Contest AtCoder J - Sushi
Uncategorized
12
55.3%
215
Educational DP Contest AtCoder I - Coins
Uncategorized
10
53.9%
353
Educational DP Contest AtCoder H - Grid 1
Uncategorized
7
43.4%
661
Educational DP Contest AtCoder G - Longest Path
Uncategorized
10
47.1%
459
Educational DP Contest AtCoder F - LCS
Uncategorized
7
34.9%
503
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