int?fgcd(int?x,int?y){
int?r;
白色(y)
r=x%y,x=y,y = r;
回歸?x;
}
int?主要(無效){
int?x,y;
printf("拜托?進入?2?積極?整數...\ n ");
if(scanf("%d%d ",& ampx & amp;y)!=2?||?x & lt1?||?y & lt1){
printf("輸入?錯誤,?出口...\ n ");
回歸?0;
}
printf("The?GCD?的?%d?& amp?%d?是嗎?%d\n ",x,y,fgcd(x,y));
回歸?0;
}