E - Евклидовое расстояние

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unknown
c_cpp
9 days ago
295 B
7
Indexable
Never
#include <bits/stdc++.h>

#define ll long long

using namespace std;

int main() {
    ll xa, ya, xb, yb;
    cin >> xa >> ya;
    cin >> xb >> yb;
    double ab = sqrt((xa - xb) * (xa - xb) + (ya - yb) * (ya - yb));
    cout << fixed << setprecision(9) << ab;
    return 0;
}


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