代码

#include <math.h>

void poly_multiply(unsigned *a, int n, unsigned *b, int m, unsigned *c)
{
    for(register int i=0;i<=n;++i)
    {
  	 	 for(register int j=0;j<=m;++j)
  	 	 {
        		c[i+j]=a[i]*b[j];
   		 }
    }
}

评测结果