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Random
Hot problems
CCC '24 S2 - Heavy-Light Composition
WC '95 P4 - Wildcard
Max's Anger Contest Series 2 P3 - Array Anger
Max's Anger Contest Series 2 P2 - Password Anger
Cheerio Contest 1 S2 - School Expansion
CCC '20 J4 - Cyclic Shifts
CCO '07 P2 - Snowflakes
Problem
Category
Points
AC %
Users ▴
CCC '07 S4 - Waterpark
CCC
7
30.9%
1502
CCC '01 S1 - Keeping Score
CCC
5
32.7%
1504
CCC '11 J4 - Boring Business
CCC
7
27.8%
1508
CCC '22 S2 - Good Groups
CCC
5p
26.1%
1560
CCC '08 S3 - Maze
CCC
7
29.3%
1563
CCC '17 J4 - Favourite Times
CCC
5p
23.4%
1570
CCC '10 S2 - Huffman Encoding
CCC
5
53.6%
1576
CCC '09 J2 - Old Fishin' Hole
CCC
5
39.1%
1587
CCC '18 J5 - Choose your own path
CCC
7p
24.1%
1613
CCC '03 J2 - Picture Perfect
CCC
3p
23.9%
1614
CCC '23 J2 - Chili Peppers
CCC
3p
53.5%
1631
CCC '16 J4 - Arrival Time
CCC
5
29.0%
1681
CCC '05 S2 - Mouse Move
CCC
5
37.3%
1685
CCC '20 S2 - Escape Room
CCC
10p
12.8%
1692
CCC '07 S3 - Friends
CCC
7
37.5%
1703
CCC '04 J4 - Simple Encryption
CCC
5
51.0%
1710
CCC '12 S2 - Aromatic Numbers
CCC
5
53.4%
1714
CCC '23 S1 - Trianglane
CCC
5p
32.0%
1718
CCC '17 S3 - Nailed It!
CCC
7p
30.5%
1719
CCC '23 J1 - Deliv-e-droid
CCC
3p
55.5%
1729
CCC '15 S3 - Gates
CCC
10p
18.7%
1778
CCC '12 S5 - Mouse Journey
CCC
7
45.6%
1818
CCC '12 S3 - Absolutely Acidic
CCC
7
26.6%
1859
CCC '11 J2 - Who Has Seen The Wind
CCC
5
25.6%
1863
CCC '02 S2 - Fraction Action
CCC
5
19.0%
1884
CCC '96 S1 - Deficient, Perfect, and Abundant
CCC
5
32.3%
1894
CCC '03 S3 - Floor Plan
CCC
7
27.8%
1952
CCC '00 J2 - 9966
CCC
3
35.8%
1955
CCC '15 S2 - Jerseys
CCC
5p
26.7%
1957
CCC '09 S1 - Cool Numbers
CCC
5
22.8%
2026
CCC '20 S1 - Surmising a Sprinter's Speed
CCC
5p
42.8%
2047
CCC '10 J2 - Up and Down
CCC
5
21.8%
2051
CCC '13 S2 - Bridge Transport
CCC
5
26.7%
2056
CCC '07 J4 - Anagram Checker
CCC
5
37.2%
2126
CCC '22 S1 - Good Fours and Good Fives
CCC
5p
39.4%
2130
CCC '08 S1 - It's Cold Here!
CCC
5
37.4%
2177
CCC '12 S1 - Don't pass me the ball!
CCC
3
56.4%
2236
CCC '21 S2 - Modern Art
CCC
7p
28.9%
2252
CCC '15 J3 - Rövarspråket
CCC
5p
38.5%
2267
CCC '05 S1 - Snow Calls
CCC
5
43.3%
2278
CCC '07 J2 - I Speak TXTMSG
CCC
3
21.7%
2288
CCC '20 J4 - Cyclic Shifts
CCC
5p
45.7%
2290
CCC '16 S1 - Ragaman
CCC
3p
29.7%
2301
CCC '00 S4 - Golf
CCC
7
24.4%
2305
CCC '03 J1 - Trident
CCC
3
28.6%
2324
CCC '07 S1 - Federal Voting Age
CCC
3
36.2%
2328
CCC '19 S2 - Pretty Average Primes
CCC
5p
25.9%
2356
CCC '05 J3 - Returning Home
CCC
5
37.3%
2364
CCC '20 J3 - Art
CCC
3p
42.9%
2367
CCC '17 J3 - Exactly Electrical
CCC
3p
29.9%
2371
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