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Hot problems
WC '17 Contest 3 J3 - Uncrackable
ACSL '09 Practice P4 - Rank
CCC '11 S1 - English or French?
CCC '24 J4 - Troublesome Keys
Problem
Category
Points
AC % ▾
Users
DMOPC '20 Contest 1 P1 - Victor Gets Quizzed
DMOPC
3
68.8%
523
DMOPC '19 Contest 5 P0 - Concurrent Competitor Counting
DMOPC
3
68.2%
393
DMOPC '14 Contest 5 P2 - Longest Tunnel
DMOPC
3p
65.1%
749
DMOPC '19 Contest 6 P0 - Trivial Math
DMOPC
3
64.8%
585
DMOPC '16 Contest 3 P0 - Negative Feedback
DMOPC
3
63.1%
506
DMOPC '17 Contest 3 P1 - An Early Christmas Present
DMOPC
3p
62.4%
449
DMOPC '19 Contest 5 P1 - Conspicuous Cryptic Checklist
DMOPC
5
62.2%
721
DMOPC '19 Contest 2 P0 - Roller Coaster
DMOPC
3
61.8%
312
DMOPC '18 Contest 1 P2 - Sorting
DMOPC
5p
61.6%
242
DMOPC '19 Contest 1 P0 - Range Finding
DMOPC
3
61.1%
363
DMOPC '14 Contest 5 P1 - Core Drill
DMOPC
3p
58.6%
4944
DMOPC '18 Contest 2 P1 - Pumpkin Patches
DMOPC
3
57.8%
437
DMOPC '15 Contest 2 P2 - Admin War
DMOPC
3p
57.1%
484
DMOPC '19 Contest 7 P0 - Contest Feedback
DMOPC
3
56.2%
364
DMOPC '14 Contest 7 P1 - Flare
DMOPC
3p
55.7%
546
DMOPC '23 Contest 1 P1 - Peak Grid
DMOPC
5p
55.5%
360
DMOPC '16 Contest 3 P1 - Leading Basic Shots
DMOPC
3
54.5%
422
DMOPC '14 Contest 1 P2 - Tiles
DMOPC
3p
54.2%
1269
DMOPC '17 Contest 3 P0 - 2-Satisfiability
DMOPC
3
50.2%
325
DMOPC '15 Contest 7 P2 - Not a Wall of Text
DMOPC
3p
50.0%
5596
DMOPC '20 Contest 3 P1 - Present Checking
DMOPC
5p
50.0%
429
DMOPC '16 Contest 2 P3 - Queries
DMOPC
7
49.8%
157
DMOPC '14 Exam Time P1 - French Homework
DMOPC
3
49.4%
470
DMOPC '15 Contest 4 P1 - Dictionary
DMOPC
3p
49.3%
318
DMOPC '17 Contest 5 P1 - IOI 101
DMOPC
3p
49.0%
465
DMOPC '21 Contest 6 P1 - Bigger Big Integer
DMOPC
3p
48.8%
499
DMOPC '19 Contest 2 P2 - Squares
DMOPC
7
48.7%
405
DMOPC '15 Contest 1 P1 - Itami and Manga
DMOPC
3p
48.6%
678
DMOPC '14 Contest 3 P1 - Not Enough Users!
DMOPC
3p
48.6%
856
DMOPC '19 Contest 3 P3 - Majority
DMOPC
12p
48.3%
268
DMOPC '19 Contest 4 P0 - Yikes
DMOPC
3p
48.3%
425
DMOPC '14 Contest 6 P4 - Bus Jam
DMOPC
10p
47.2%
182
DMOPC '18 Contest 3 P0 - Bob and ICS Class
DMOPC
3p
47.0%
209
DMOPC '18 Contest 2 P0 - Mimi and Video Games
DMOPC
3
46.7%
422
DMOPC '18 Contest 1 P0 - Sorting
DMOPC
3
46.6%
560
DMOPC '15 Contest 5 P2 - D-Mails
DMOPC
5p
46.6%
112
DMOPC '18 Contest 3 P1 - Bob and Music Class
DMOPC
5
46.2%
101
DMOPC '14 Exam Time P2 - Physics Duel
DMOPC
5p
46.1%
125
DMOPC '13 Contest 3 P5 - A Romantic Dinner
DMOPC
10p
45.9%
384
DMOPC '16 Contest 2 P1 - Seed Strategy
DMOPC
3
45.6%
335
DMOPC '19 Contest 7 P1 - Hydrocarbons
DMOPC
7
45.3%
264
DMOPC '18 Contest 6 P3 - Wish Upon a Star
DMOPC
10p
45.0%
386
DMOPC '19 Contest 5 P3 - Captivating Construction Challenge
DMOPC
12p
44.9%
120
DMOPC '20 Contest 1 P2 - Victor's Moral Dilemma
DMOPC
5
44.5%
508
DMOPC '14 Contest 4 P2 - Redirection
DMOPC
3p
44.3%
184
DMOPC '14 Contest 6 P2 - GO Faster
DMOPC
5p
43.3%
248
DMOPC '21 Contest 10 P5 - Number Theory
DMOPC
20p
43.3%
140
DMOPC '15 Contest 6 P4 - Line Graph
DMOPC
10p
43.3%
377
DMOPC '18 Contest 4 P3 - Dr. Henri and Ionization
DMOPC
10p
43.2%
114
DMOPC '16 Contest 1 P1 - A New Chapter
DMOPC
3p
42.3%
350
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