题解 | 绕距
绕距
https://www.nowcoder.com/practice/7a245fc6284f4139b4fb21de58e68483
#include <bits/stdc++.h>
using namespace std;
int main() {
int x1,x2,y1,y2;
double a,b,c;
cin>>x1>>y1>>x2>>y2;
a=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
b=fabs(x1-x2)+fabs(y1-y2);
c=fabs(a-b);
cout<<fixed<<setprecision(10)<<c<<endl;
}
// 64 位输出请用 printf("%lld")
查看24道真题和解析