粗心 输入顺序错了 引以为戒
#include
#include
int main(){
double x1,x2,y1,y2;
double i;
while(scanf("%lf %lf %lf %lf",&x1,&y1,&x2,&y2) != EOF )
{
i=sqrt ( (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2) );
printf("%.2fn",i);
}
return 0;
}
![[HDU OJ]杭电2001C语言](http://www.mshxw.com/aiimages/31/312211.png "[HDU OJ]杭电2001C语言")
粗心 输入顺序错了 引以为戒
#include
#include
int main(){
double x1,x2,y1,y2;
double i;
while(scanf("%lf %lf %lf %lf",&x1,&y1,&x2,&y2) != EOF )
{
i=sqrt ( (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2) );
printf("%.2fn",i);
}
return 0;
}
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