7dan's blog

By 7dan, 3 years ago, In English

We invite you to participate in CodeChef’s September Long Challenge, this Friday, 3rd September, 3 PM IST onwards.

The contest is open for 10 days, i.e, from 3 — 13 September. Please note, this month’s long challenge will be rated only for Div 3 coders.

Joining me on the problem setting panel are:


The winners will receive CodeChef laddus with which they can claim cool CodeChef goodies. Know more here.

The video editorials of the problems will be available on our YouTube channel as soon as the contest ends. Subscribe to get notifications about our new editorials.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here.

Hope to see you participating.

Good Luck!

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3 years ago, # |
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For MNDIGSUM , the values of x for which a*x+b=N for a given a and N lies in a range [1+(n/(a+1)),n/a]. For ex- If a=3 and N=35 then x can be anything between [1+(35/4),35/3] i.e [9,11]. Then , why are we taking only n/a?