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Random
Hot problems
CCC '16 S4 - Combining Riceballs
Appleby Contest '19 P5 - Matrix Operation
Cheerio Contest 1 S2 - School Expansion
WC '96 P6 - Bases Multiplication
CCCHK '15 J4 - Where to build my house?
DMOPC '23 Contest 1 P1 - Peak Grid
Max's Anger Contest Series 2 P3 - Array Anger
Problem
Category
Points
AC %
Users ▴
CCC '17 S4 - Minimum Cost Flow
CCC
17p
14.1%
771
CCC '97 S2 - Nasty Numbers
CCC
5
45.9%
794
CCCHK '08 J1 - Best fish
CCC
3
38.1%
805
CCC '23 S2 - Symmetric Mountains
CCC
7p
26.5%
814
CCC '05 S4 - Pyramid Message Scheme
CCC
10
35.8%
818
CCC '20 S3 - Searching for Strings
CCC
12p
8.9%
841
CCCHK '08 J2 - Lucky Number
CCC
3
26.8%
845
CCCHK '15 J1 - Rock-paper-scissors
CCC
3
51.7%
852
CCC '07 S5 - Bowling for Numbers
CCC
10p
29.9%
868
CCC '08 J4 - From Prefix to Postfix
CCC
7
42.8%
888
CCC '02 S4 - Bridge Crossing
CCC
10p
37.2%
888
CCC '09 S2 - Lights Going On and Off
CCC
10
40.6%
902
CCC '01 S2 - Spirals
CCC
5
41.2%
912
CCC '16 S4 - Combining Riceballs
CCC
15p
28.9%
944
CCC '99 S1 - Card Game
CCC
5
31.3%
1000
CCC '11 J5 - Unfriend
CCC
7
46.8%
1003
CCC '21 S3 - Lunch Concert
CCC
10p
24.5%
1017
CCC '97 S1 - Sentences
CCC
5
29.4%
1019
CCC '09 S4 - Shop and Ship
CCC
10
21.0%
1034
CCC '10 J4 - Global Warming
CCC
5p
22.5%
1056
CCC '07 J5 - Keep on Truckin'
CCC
7
19.7%
1071
CCC '16 S3 - Phonomenal Reviews
CCC
12p
26.4%
1103
CCC '18 S3 - RoboThieves
CCC
12p
14.1%
1135
CCC '06 S1 - Maternity
CCC
5
37.5%
1147
CCC '15 S4 - Convex Hull
CCC
15p
27.4%
1160
CCC '08 S2 - Pennies in the Ring
CCC
5
30.5%
1184
CCC '11 S3 - Alice Through the Looking Glass
CCC
10p
36.0%
1196
CCC '04 S1 - Fix
CCC
5
32.6%
1199
CCC '07 S2 - Boxes
CCC
5
27.5%
1214
CCC '13 S4 - Who is Taller?
CCC
7
16.8%
1233
CCC '06 J4 - It's tough being a teen!
CCC
7
41.5%
1242
CCC '23 J3 - Special Event
CCC
5p
38.0%
1296
CCC '15 J4 - Wait Time
CCC
5
39.4%
1313
CCC '10 S1 - Computer Purchase
CCC
5
14.1%
1324
CCC '21 J4 - Arranging Books
CCC
7p
19.6%
1324
CCC '08 J3 - GPS Text Entry
CCC
3
56.0%
1340
CCC '09 S3 - Degrees Of Separation
CCC
10
28.0%
1347
CCC '00 J1 - Calendar
CCC
5
11.2%
1356
CCC '13 S3 - Chances of Winning
CCC
10
41.2%
1365
CCC '09 J3 - Good Times
CCC
5
20.3%
1383
CCC '10 J3 - Punchy
CCC
5
33.0%
1397
CCC '05 J1 - The Cell Sell
CCC
3
8.0%
1453
CCC '03 S2 - Poetry
CCC
5
17.3%
1456
CCC '01 S3 - Strategic Bombing
CCC
7
38.7%
1458
CCC '15 J5 - π-day
CCC
10p
27.4%
1465
CCC '06 J3 - Cell-Phone Messaging
CCC
3
41.3%
1466
CCC '05 J5 - Bananas
CCC
10
21.6%
1468
CCC '98 S1 - Censor
CCC
5
37.5%
1476
CCC '22 J3 - Harp Tuning
CCC
5p
33.2%
1497
CCC '02 S1 - The Students' Council Breakfast
CCC
5
39.6%
1498
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