题解 | 绕距
绕距
https://www.nowcoder.com/practice/7a245fc6284f4139b4fb21de58e68483
#include <stdio.h>
#include <math.h>
int main()
{
int x1,y1,x2,y2;
scanf("%d%d",&x1,&y1);
scanf("%d%d",&x2,&y2);
float a,b,c;
a=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
b=fabs(x1-x2)+fabs(y1-y2);
c=fabs(a-b);
printf("%f",c);
return 0;
}
