Innerve summer code challenge

general
1

Innerve is organising online coding competition - Innerve Summer Code Challenge (ISCC).
Contest link :
https://www.codechef.com/ISCC2018

2

Is this a rated contest?

3

Where can we discuss issues related to the contest ? This contest seems to have many.

Will editorials be posted ?

4

Contest Page not working @admin @vijju123

1 Like
5

Can anybody help me in finding the bug in my code for question MCQ games?
Link to my code is CodeChef: Practical coding for everyone . I have used (a/b)%mod=(a*pow(b,mod-2))%mod.
@vijju123

6

I think having a score based ranklist in a long contest makes more sense.

7

I am sorry but I donā€™t think there is much issues related to contest.I have solved first 8 problems out of 10 and you have solved the 9th one.I donā€™t know whether last problem has any issues or not as I havenā€™t read that question yet.But in first 9 problems questions are pretty clear and if someone is getting wrong answer then the user is simply missing corner cases.

8

Your code is perfect. But the test files are not. According to the test files, I donā€™t know why, you should print ā€˜1ā€™ if k is 1.

The logically wrong code which fetches an AC: CodeChef: Practical coding for everyone

Again, itā€™s not your fault, and congrats for solving it.

1 Like
9

Thanks for the information @sarthakmanna.

10

we should print 1 for k=1 because each question has 1 choiceā€¦the one person will always tick that 1 option and will always be correctā€¦In short when k=1 there can-not be a wrong answer for any question and hence 1 person is enough to solve all.

11

THanks, question 9 can be solved with the help of a merge sort tree. I shall post my solution on GitHub if you want to refer it. :slight_smile:

I am not able to remove errors to Lottery Money and Mathematical Game. :\

12

According to the question, our task is to ā€œdetermine the sum of total number of players who has attempted ith question for all (1<=i<=N)ā€.

Also, in the explanation section, it is explained as ā€œ1st question is attempted by 27 players,second by 9 and third by 3 players.So, the sum of total number of players is(27+9+3)=39. The answer will be 39%(10^9+7) = 39ā€.

Similarly, for k = 1, we can explain as,
1st question is attempted by 1 player.
2nd question is attempted by 1 player.
ā€¦
Sum = 1 + 1 + 1 + 1 +ā€¦ = n

Hope its clear, @swapnil159

3 Likes
13

Oh!! Okayyā€¦My badā€¦forgot the summationā€¦Thanks!! @sarthakmanna
Too many confusions in the competition though.