#7341: 幫忙看下怎修改


kenkonjack (kenkonjack)


#include<stdio.h>

int main(){
 int a,b,c,d,e,n;
 scanf("%d",&n);
 for(e=0;e<n;e++){
scanf("%d%d%d%d",&a,&b,&c,&d);
 if(a+d==b+c)
printf("%2d%2d%2d%2d%2d\n",a,b,c,d,d+b-a);

 else if(a*d==b*c)
 printf("%2d%2d%2d%2d%3d\n",a,b,c,d,d*(b/a));

else  0;
}
 }