#include
int?egcd（int?aint?b）
{
????if（b<0）?b=b%a+a;
????int?c=0;
????int?d=1;
????int?q=a/b;
????int?r=a%b;
????int?temp;
????int?mod=a;
????while（r!=0）
????{
??????????????temp=（c-q*d）%mod;
??????????????c=d;
??????????????d=temp;
??????????????a=b;
??????????????b=r;
??????????????q=a/b;
??????????????r=a%b;?????????
????}
????return?（d<0）?（d+mod）:d;
}
int?main（）
{
????int?abpqngn;/*nb是公鑰，pqa是私鑰*/
????int?x;/*x是要進行簽名的明文*/
????printf（“私鑰p=“?）;
????scanf（“%d“&p）;
????printf（“私鑰q=“?）;
????scanf（“%d“&q）;
????n=p*q;
????gn=（p-1）*（q-1）;
????printf（“