NKOJ 1021: hard for me to debug. Where is it? - C++教室 - C++论坛

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标题：NKOJ 1021: hard for me to debug. Where is it?

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HJin

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NKOJ 1021: hard for me to debug. Where is it?

For the following GNU C code, I got 9AC + 1WA. I thought my algorithm is correct and there must be some bug in my code.

Could we de"bug"?

程序代码：


#include <stdio.h>
long long b[] = {1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683, 59049, 177147, 531441, 1594323, 4782969, 14348907, 43046721, 129140163, 387420489, 1162261467, 3486784401, 10460353203, 31381059609, 94143178827, 282429536481, 847288609443, 2541865828329, 7625597484987, 22876792454961, 68630377364883, 205891132094649, 617673396283947};
int main()
{
    unsigned n;
    int k;
    while( scanf(\"%d\", &n) != -1 )
    {
        if(n==1)
        {
            printf(\"\n\");
            continue;
        }
        --n;
        k=0;
        while(n)
        {
            if(n&1)
                printf(\"%lld\n\", b[k]);
            ++k;
            n >>= 1;
        }
    }
    return 0;
}