void main()
{
int r,j,i,n1,n2
printf("Enter the begin and end number: \n")
scanf("%d%d",&n1,&n2)
for(i=n1i<n2i++)
{
r=0
for(j=1j<ij++)
{
if(i%j==0)
{
r+=j
}
}
if(r==i)
{
printf("the result is: %d\n",r)
}
}
}
是友友要的吗???
#include <stdio.h>int main()
{
long r=1
int i
for(i = 2 i<=18 i +=2)
r*=i
printf("%ld\n", r)
return 0
}