12 lines
286 B
C++
12 lines
286 B
C++
#include <iostream>
|
|
#include <iomanip>
|
|
#include <cmath>
|
|
using namespace std;
|
|
int main(){
|
|
double a1,a2,b1,b2,o;
|
|
while(cin>>a1>>a2>>b1>>b2){
|
|
o = sqrt(pow(a1-b1,2)+pow(a2-b2,2));
|
|
cout << setiosflags(ios::fixed) << setprecision(2) << o << endl;
|
|
}
|
|
return 0;
|
|
} |