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;
double de,dm,derta;
scanf("%d %d %d %d",&x1,&y1,&x2,&y2);
dm=fabs(x1-x2)+fabs(y1-y2);
de=sqrt(pow(x1-x2,2)+pow(y1-y2,2));
derta=fabs(dm-de);
printf("%lf",derta);
return 0;
}
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