SER 2015 Problem Set

All Data

problems, contest data, and judge's solutions [tar.gz]
problems, contest data, and judge's solutions [zip]

2015 Problem Set

Contest Submission Data

Problems Solved in Division I

Of the xx teams competing in Division I:

No teams solved no problems.
9 teams solved 1 problems.
9 teams solved 2 problems.
4 teams solved 3 problems.
11 team solved 4 problems.
4 team solved 5 problems.
2 team solved 6 problems.
2 teams solved 7 problems.
No teams solved 8 problems.
No teams solved 9 problems.
One team solved all 10 problems.

Division I. How many teams solved problems

0	1	2	3	4	5	6	7	8	9	10

Problems Solved in Division II

Of the 67 teams competing in Division II:

5 teams solved zero problems.
5 teams solved 1 problems.
5 teams solved 2 problems.
10 teams solved 3 problems.
4 teams solved 4 problems.
10 teams solved 5 problems.
15 teams solved 6 problems.
5 teams solved 7 problems.
2 teams solved 8 problems.
4 teams solved 9 problems.
2 teams solved 10 problems.
No teams solved 11 problems.

Division II. How many teams solved problems

0	1	2	3	4	5	6	7	8	9	10	11

Accepted Submissions in Division I

Division I
Problem	Accepted	Submissions	of Submissions	of 48?? Teams
	?	??	??%	??%
	12	31	38%	25%
	43	88	48%	90%
	9	29	31%	19%
	9	25	36%	19%
	13	87	3%	27%
	1	26	5%	2%
	3	57	5%	6%
	2	6	33%	4%
Totals	111	422	26%	23%

Accepted Submissions in Division II

Division II
Problem	Accepted	Submissions	of Submissions	of 47?? Teams
	0	0	50%	11%
	0	0	8%	32%
	0	0	70%	26%
	3	3	100%	6%
	7	14	50%	15%
	3	5	60%	6%
	15	51	29%	32%
	41	72	56%	87%
	33	130	25%	70%
Totals	???	???	??%	??%

Programming Language Usage

Division I
Language	Accepted	Submissions	Correct	Usage
Ada		0
C	1	2	50%	<1%
C#		0
C++	23	114	20%	27%
Fortran		0
Haskell		0
Java	85	280	30%	66%
Lua		0
Pascal		0
Python 2	2	23	8%	5%
Python 3	0	3	0%	<1%
Scala		0
Totals	111	422

Division II
Language	Accepted	Submissions	Correct	Usage
Ada		0
C	1	10	10%	1%
C#		0
C++	36	146	24%	25%
Fortran		0
Haskell		0
Java	100	339	29%	58%
Lua		0
Pascal		0
Python 2	24	55	43%	9%
Python 3	11	31	35%	5%
Scala		0
Totals	172	581

Problem Analysis

Please see Judging the Southeast Region for data and solutions to the contest problems.

Contest Data

Division I
Problem	Sample Input/Ouput		Judges' Test Data
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output

Division II
Problem	Sample Input/Ouput		Judges' Test Data
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output
	input	output	input	output

Sample Solutions

Division I
Problem	Sample Solutions
	`alchmey_vanb.java`, `BeautifulMountains_artur.java`, `BeautifulMountains.java`
	`carpet_vanb.java`, `NPAL_Yan.java`, `Palindrome_Calvin.java`
	`Ping_artur.java`, `containment_vanb.java`
	`ElectricRally_artur.java`, `leaf_vanb.java`
	`Skyscrapers_artur.java`, `number_vanb.java`
	`StarSim_artur.java`, `StarSim_zeil.java`, `knights_vanb.java`
	`TandemRepeat_artur.java`
	`Triangles_artur.java`, `shuffles_vanb.java`, `shuffles_vanb_slow.java`
	`Village_artur.java`, `stamp_vanb.java`

Division II
Problem	Sample Solutions
	`CakeCutting_artur.java`, `CakeCutting_zeil.java`, `carpet_vanb.java`
	`Christmas_artur.java`, `Christmas_Calvin.java`, `Christmas.java`, `leaf_vanb.java`
	`Ping_artur.java`, `number_vanb.java`
	`ElectricRally_artur.java`, `moves_vanb.java`
	`Cousins_artur.java`, `marble_vanb.java`
	`Decimal_artur.java`, `polling_vanb_slow.java`
	`Politics_artur.java`, `Politics.java`, `runes_vanb.java`, `Sort_Calvin.java`,
	`Shuffle_artur.java`, `Shuffle_Calvin.java`, `shuffle_vanb.java`
	`Speed_artur.java`, `Speed.java`, `top_vanb.java`