@xmcong2000
# include & ltstdio.h & gt
int?q(int?答
{
////int?k;
int?flang
弗蘭?=?1;
k = 2;
////?while(k & lt;a){
if(a%k==0){
弗蘭?=?0;
打破;
}
//?其他
k = k+1;
//}
returnflang
}
int?主要(無效)
{
int?k,?n;
n = 0;
k = 2;
while(n & lt;=15){
if(q(k)& amp;& ampq(k+2)){
printf("%d?%d\t ",k,?k+2);
n = n+1;
}
k++;
}
回歸?0;
}