#6954: 可以幫忙嗎...我剛學而已...


meisbusy (meisbusy)


#include<cstdio>
#include<cstdlib>
#include<cmath> 

int a,b,c; 
int main()
{
while(scanf("%d",&a)!=EOF);
{
if(a=2) 
{printf("質數\n");}
else if(a!=2) 
for(b=2;b<=a;b=b+1)
{
if(a%b==0)
c=c+1; 
continue; 
else if(a%b!=0)
break; 
if(c!=1)
{printf("不是質數\n");}
else if(c==0) 
{printf("質數\n");} 
}
return 0;