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30-Day LeetCoding Challenge (Day-1)

late_riser on April 02, 2020

Background: We all are home for the current pandemic situation. Leetcode has taken this opportunity to throw a challenge for the users (which is po...
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Andrew Clayton •

While I like the XOR trick. Seeing as this is #c, here's some C code...

#include <stdio.h>

static const int array[] = { 3, 4, 9, 3, 9 };

int main(void)
{
        int i = 0;
        int sum = 0;
        int n = sizeof(array) / sizeof(array[0]);

        for ( ; i < n; )
                sum ^= array[i++];

        printf("%d\n", sum);

        return 0;
}
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late_riser •

Nice code. My one is C++ though!

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Andrew Clayton •

OK. I was maybe too subtle.

I was really just pointing out the fact that you posted C++ code to the #c topic, when you actually wanted the #cpp one...

Remember, C != C++, I see people conflating the two all too often...

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late_riser • • Edited

Oh I see! My bad! Actually what happened is, I gave tag as 'c++' which I guess the editor cannot differentiate. It just omits the '++'. Now I have given cpp which works. Thanks for the correction though :)