NOV14 Statistics

general
1

Hello all,

currently there are 6077 contestants with correct solution for at lest one problem, complete statistics are:

CHEFSEG:  3596[>= 15.0] / 3517[>=  25.0] / 3512[>=  40.0] / 3149[>=  85.0] / 3141[>= 100.0]
CHEFWORD:  642[>= 15.0] /  628[>=  75.0] /  626[>= 100.0]
POWERMUL: 2334[>=  9.0] /  514[>=  31.0] /  489[>=  40.0] /  260[>= 100.0]
SEAORD:     46[>= 16.0] /   44[>= 100.0]
SEAPERM2:  241[>= 13.0] /  205[>=  27.0] /  201[>=  40.0] /  170[>= 100.0]
DISCHAR:  5055[>= 20.0] / 5035[>=  80.0] / 5026[>= 100.0]
RBTREE:   2387[>= 25.0] / 2340[>=  27.0] / 2336[>=  52.0] / 2299[>=  75.0] / 2298[>= 100.0]
PRPALN:   4319[>= 35.0] / 3230[>= 100.0]
FNCS:     1195[>= 10.0] /  254[>=  20.0] /  119[>= 100.0]
SPELL:     683[>=  0.0] /   30[>=  20.0] /    8[>=  40.0] /    6[>=  60.0] /    5[>= 80.0]

where one row is:

ProblemCode: NumberfOfDifferentParticipants[ThatScoredAtLeastXPoints]

so for example meaning of the row

SEAORD: 46[>= 16.0] / 44[>= 100.0]

is, that problem Sereja and Order (code SEAORD) was solved by 46 contestants, where 46 scored at least score 16 points and 44 scored 100 points.

I have Java code ready to count those stats automatically and I’m looking for someone who deploy it somewhere on server from which my Chrome and Firefox plugin can read the data to show it during the contest, let say updating every half an hour.

Happy last hours of the contest to all of you still solving the problems :wink:

edit:

Ordered by number of participants it seems the easiest are (code, points, participants):

DISCHAR   20 5055
DISCHAR   80 5035
DISCHAR  100 5026
PRPALN    35 4319
CHEFSEG   15 3596
CHEFSEG   25 3517
CHEFSEG   40 3512
PRPALN   100 3230
CHEFSEG   85 3149
CHEFSEG  100 3141
RBTREE    25 2387
RBTREE    27 2340
RBTREE    52 2336
POWERMUL   9 2334
RBTREE    75 2299
RBTREE   100 2298
FNCS      10 1195
CHEFWORD  15 642
CHEFWORD  75 628
CHEFWORD 100 626
POWERMUL  31 514
POWERMUL  40 489
POWERMUL 100 260
FNCS      20 254
SEAPERM2  13 241
SEAPERM2  27 205
SEAPERM2  40 201
SEAPERM2 100 170
FNCS     100 119
SEAORD    16 46
SEAORD   100 44

Cheers,

Betlista

18 Likes
2

This has become a problem since the start of partial grading. As of now, the problems are sorted by number of people who successfully solved the problem partially/fully. For a long contest, it makes much more sense to sort them by number of people who solved it completely, which is the correct estimate of the problem’s difficulty level.

1 Like
3

@amntri: Too long for comment, so I added this as an answer…

As of now, the problems are sorted by number of people who successfully solved the problem partially/fully.

It is not, it is the number of successful submissions, which was kind of wrong even before the partial grading (some contestants submit several times even when they have AC). With partial grading it is worse, because when I submit solution, that gets 15 points out of 100 I’m trying again and again and all all such submissions, should be counted as successful.

4

Count of successful submission counts unique contestants. One with 10 AC will be counted once only.

2 Likes
5

My opinion is it is not working correctly. Look for example on Mahesh and his lost array, on contest page there are 256 submissions, from all submissions we know there are 292 submissions and from right menu there are 285 - 3 views and 3 different numbers…

6

Ya there might be some bug in that contest or something.
But, if you think about challenge problem lots of people have lots of correct submissions so in that case it should always come as most solved problems. As it has more number of people who solved it. :slight_smile:

1 Like
7

Unfortunatelly I’m not able to add final update, while ranking page is not working for me now.