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15 lines
381 B
15 lines
381 B
#include <bits/stdc++.h>
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using namespace std;
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double dis(double x1, double y1, double x2, double y2) {
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return sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
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}
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int main() {
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double x1, y1, x2, y2, x3, y3;
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cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;
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printf("%.2lf", dis(x1, y1, x2, y2) + dis(x1, y1, x3, y3) + dis(x3, y3, x2, y2));
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return 0;
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} |