Thank you

This might help- International Olympiad in Informatics: Path to Gold

Those were taught in our school! It's simply 12th CBSE CSc!

This is the official explanation for the problem: Indian National Olympiad in Informatics Btw, this problem was part of the 2004 INOI

Yeah, your solution seems a lot more intuitive, thanks for sharing. :)

I submitted Malvika's solution with the following changes and documented the results, they are as follows:

1.Unchanged:

C++: 0.00 sec, C: 0.024 sec

Here's my solution if anyone needs help: [C++] NUMROUTE

Strange, I used C language and as I read in the comments that WA case, I did that workaround.

Still I was getting 60/100.

Then after a day I tried to increase the size of the...

    #define matrix vector<vector<int> >

    int N; cin >> N;

The testing data is available on the IARCS site, maybe you can get someone with access to add the problem on the contest page.

And also the other INOI 2017 problem.

Is there a judge where I can test my solution for this problem?

Can you please share your code for this solution ?

I used the similar approach explained by Mohit Gurumukhani...

Wonder how my program gave the wrong answer... :(

I got the expected output.

Here is my Code:

#include<bits/stdc++.h>

Hints for the complete solution:

Thanks for the simple solution. Can you also explain Keshav sir's solution ?

IARC Judge is giving fatal error for c++ code,so below is my code in C

#include <stdio.h>
#include <string.h>