[Problem 1 | Problem
2 | Problem 3 | Problem
4 | Problem 5 ]
[Problem 6 | Problem
7 | Problem 8 | Problem
9 | General Analysis]
2004
Results | 2004 Report
NOTE
If the Chief Judge and Contest Director release the
judge's test data, it will be available from this page.
Please do not email asking for the data to be sent. |
Problem 1 |
Jelly |
Submissions |
144 |
Solutions |
96 |
Fastest Solution |
6 minutes |
% Submissions Correct |
66.67 |
% Teams Solving Problem |
96 |
Description |
Our first simple problem was about a practical
joker who tipped liquid jelly from one mould to another.
Teams had to find out who had lost jelly to whom. Most
teams managed to solve this. |
Problem 2 |
Change |
Submissions |
227 |
Solutions |
87 |
Fastest Solution |
18 minutes |
% Submissions Correct |
38.33 |
% Teams Solving Problem |
87 |
Description |
This was a problem where teams had to make
life easier for a cashier by working out what notes and
coins to give as change. Although a high percentage of
teams solved this problem, it attracted far more wrong
answers than any other problem. |
Problem 3 |
Necklaces |
Submissions |
170 |
Solutions |
74 |
Fastest Solution |
23 minutes |
% Submissions Correct |
45.53 |
% Teams Solving Problem |
74 |
Description |
This problem concerned necklaces
that contained black and white beads which were used to
represent numbers. Teams had to work out what numbers
could be represented. |
Problem 4 |
Graphics |
Submissions |
84 |
Solutions |
56 |
Fastest Solution |
60 minutes |
% Submissions Correct |
66.67 |
% Teams Solving Problem |
56 |
Description |
Our first medium problem was
about moving from area to area in a screen which was
subdivided. Over half the teams solved it. |
Problem 5 |
Shopping |
Submissions |
73 |
Solutions |
29 |
Fastest Solution |
64 minutes |
% Submissions Correct |
39.73 |
% Teams Solving Problem |
29 |
Description |
Here teams had to help a supermarket
manager minimize the queueing time for customers. It
proved to be the hardest of our medium difficulty problems. |
Problem 6 |
Trees |
Submissions |
65 |
Solutions |
46 |
Fastest Solution |
47 minutes |
% Submissions Correct |
70.77 |
% Teams Solving Problem |
46 |
Description |
This problem was about binary
search trees which teams had to convert from one representation
to another. |
Problem 7 |
Monks |
Submissions |
52 |
Solutions |
22 |
Fastest Solution |
82 minutes |
% Submissions Correct |
42.31 |
% Teams Solving Problem |
22 |
Description |
The first of our hard problems
had a reasonable number of correct solutions. It
involved monks and beads! |
Problem 8 |
Squares |
Submissions |
31 |
Solutions |
5 |
Fastest Solution |
156 minutes |
% Submissions Correct |
16.13 |
% Teams Solving Problem |
5 |
Description |
This was a magic square problem
that only a few teams managed to solve. |
Problem
9 |
Colours |
Submissions |
1 |
Solutions |
1 |
Fastest Solution |
269 minutes |
% Submissions Correct |
100 |
% Teams Solving Problem |
1 |
Description |
This hard problem proved too
difficult for most of our teams - and almost caused one
of the problem setters to have to do a bungy jump! |
General Analysis
Exactly 100 teams competed this year. 97 of them managed
to solve at least one problem.
Problems Solved |
Number of Teams |
Percentage of Teams |
9 |
1 |
1 |
8 |
3 |
3 |
7 |
11 |
11 |
6 |
17 |
17 |
5 |
11 |
11 |
4 |
16 |
16 |
3 |
17 |
17 |
2 |
13 |
13 |
1 |
8 |
8 |
0 |
3 |
3 |