.

[wowisay]

.

[dhayden]

but this is giving me WA

Not everyone here uses codechef. What is "WA"?

Your approach seems correct. Just be sure that you aren't double-counting pairs of recipes. Adding up the counts should be something like this:

unsigned result = 0;
for (i=0; i<31; ++i) {
    for (j=i+1; j<32; ++j) {
        if (i | j == 31) {
            result += count[i] * count[j];
        }
    }
}
return result;

[z05DSL3A]

dhayden wrote:

Not everyone here uses codechef. What is "WA"?

"WA - wrong answer - your program ran successfully, but gave an incorrect answer. Most probably your program contains a bug, or you are not interpreting the problem text correctly."

[salem c]

Didn't we just do this one from someone else?

In addition to
FAQ - Frequently Asked Questions
we need
FUA - Frequently Unread Answers.

[changs98]

You are missing one case....
Suppose there are 3 Ingredients
aeiou
aeiou
aeiou

Your Code will show Zero output, But answer should be 3
So all you need to do is ans+=count[31]*(count[31]-1)/2

[wowisay]

@changs98 thanks that was the case

[E0p9LyTq]

Do NOT delete/modify your posts, that is VERY rude. This is not your own personal tutor service.

And could get your ignored in the future.