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Hot problems
CCC '24 S2 - Heavy-Light Composition
Educational DP Contest AtCoder K - Stones
Educational DP Contest AtCoder I - Coins
IOI '94 P1 - The Triangle
COCI '06 Regional #3 Firefly
CCC '17 J4 - Favourite Times
GFSSOC '15 Winter J5 - Secret Santa
Problem
Category ▴
Points
AC %
Users
DWITE '07 R3 #4 - The Convex Fence Company
DWITE
10
25.9%
17
DWITE '12 R1 #1 - Candy Piles
DWITE
3
36.1%
89
DWITE '11 R2 #3 - Anonymous Shopping
DWITE
5
40.0%
10
DWITE '10 R5 #4 - New type of wordplay
DWITE
15
5.7%
14
DWITE '08 R5 #4 - Wiring the Server Room
DWITE
15
22.6%
12
DWITE '09 R5 #3 - Summary Diff
DWITE
5
61.8%
19
DWITE '08 R1 #3 - School's a maze
DWITE
7
49.1%
47
DWITE '08 R4 #5 - Blow your mind with 4th D
DWITE
7
19.7%
13
DWITE '10 R2 #5 - Cogwheels
DWITE
7
25.3%
14
DWITE '10 R5 #3 - Balancing Act
DWITE
7
39.3%
165
DWITE '09 R4 #4 - Autocomplete
DWITE
7
61.5%
45
DWITE '11 R3 #3 - Combo Discounts
DWITE
5
70.0%
7
DWITE '09 R1 #4 - My First True Letter
DWITE
3
38.1%
104
DWITE '09 R7 #4 - What is this Algebra?
DWITE
12
22.0%
13
DWITE '07 R2 #5 - Bridges In A Graph
DWITE
7
20.5%
344
DWITE '11 R4 #4 - Lego Ladder
DWITE
10
29.3%
74
DWITE '09 R6 #3 - Bill Amendments
DWITE
5
25.5%
11
DWITE '09 R1 #2 - Word Scrambler
DWITE
5
57.0%
223
DWITE '09 R5 #1 - ASCII bar graphs
DWITE
3
66.2%
136
DWITE '08 R3 #2 - Wordcount++
DWITE
5
35.6%
436
DWITE '11 R3 #1 - Weighted Presents
DWITE
3
56.0%
44
DWITE '09 R1 #5 - Running In Circles
DWITE
7
19.8%
316
DWITE '12 R5 #1 - Travel Time
DWITE
5
43.8%
32
DWITE '08 R4 #4 - Shortest path around v2
DWITE
7
46.8%
157
DWITE '10 R5 #2 - Safe from Rooks
DWITE
5
32.5%
212
DWITE '11 R2 #1 - Wandering Billy
DWITE
5
35.0%
31
DWITE '11 R1 #1 - Arab-lish Numbers
DWITE
5
29.2%
45
DWITE '11 R4 #1 - Crossword Count
DWITE
5
54.8%
16
DWITE '10 R1 #1 - Age Gate
DWITE
3
33.1%
210
DWITE '08 R4 #3 - Secret party
DWITE
7
37.9%
54
DWITE '10 R4 #2 - Primal Numbers
DWITE
5
56.3%
28
DWITE '10 R2 #3 - Escape and Loot
DWITE
5
34.4%
95
DWITE '02 R2 #5 - Now I know my ABCs
DWITE
5
38.9%
132
DWITE '02 R2 #3 - The Game of Life
DWITE
7
52.0%
95
DWITE '06 R5 #5 - Prime Palindromes
DWITE
10
24.6%
212
DWITE '06 R5 #1 - Points on a Line
DWITE
7
36.3%
77
DWITE '02 R2 #1 - Sales!
DWITE
5
31.8%
91
DWITE '02 R2 #2 - The Five M's of Stats 101
DWITE
5
31.1%
111
DWITE '06 R5 #4 - Connect-4
DWITE
7
63.6%
40
DWITE '02 R2 #4 - Money Prize
DWITE
10
42.0%
57
DWITE '06 R5 #2 - Floppy Disk
DWITE
7p
56.4%
106
DWITE '06 R5 #3 - UPC Check Digit
DWITE
5
38.0%
100
ECOO '13 R1 P1 - Take a Number
ECOO
5p
27.1%
1182
ECOO '13 R1 P2 - The Luhn Algorithm
ECOO
5p
48.0%
365
ECOO '13 R1 P3 - Hexudoku
ECOO
7p
52.7%
88
ECOO '13 R1 P4 - Coupon Day
ECOO
10p
34.7%
24
Mock ECOO '14 P1 - Do You Want to Build a Snowman?
ECOO
12
8.5%
54
ECOO '14 R1 P1 - Martian Time
ECOO
5p
26.5%
76
ECOO '15 R1 P3 - Ten Pin Trig
ECOO
10p
37.4%
41
ECOO '15 R1 P4 - Neanderthal Numbers
ECOO
10p
34.0%
208
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