You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
16 lines
332 B
16 lines
332 B
2 years ago
|
#include <bits/stdc++.h>
|
||
|
|
|
||
|
|
using namespace std;
|
||
|
|
|
||
|
|
int main() {
|
||
|
|
//cin读入优化
|
||
|
|
std::ios::sync_with_stdio(false);
|
||
|
|
|
||
|
|
double xa, ya, xb, yb, ab;
|
||
|
|
cin >> xa >> ya >> xb >> yb;
|
||
|
|
|
||
|
|
ab = sqrt((xa - xb) * (xa - xb) + (ya - yb) * (ya - yb));
|
||
|
|
|
||
|
|
cout << fixed << setprecision(3) << ab << endl;
|
||
|
|
return 0;
|
||
|
|
}
|