2 条题解
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*#include<bits/stdc++.h> using namespace std; double b(double x1,double y1,double x2,double y2){ double t1=pow (x2-x1,2); double t2=pow (y2-y1,2); return sqrt(t1+t2); } int main(){ double x1,x2,y1,y2,x3,y3,sss=0; cin>>x1>>y1>>x2>>y2>>x3>>y3; sss+=b( x1, y1, x2, y2); sss+=b( x3, y3, x2, y2); sss+=b( x1, y1, x3, y3); printf("%.1lf",sss); return 0; }
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rc246mahaimo1
@ 2024-7-23 12:41:23
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rc247huangyushen1 LV 8 @ 2024-7-23 11:18:10
#include<bits/stdc++.h> using namespace std; double dist(double x1,double y1,double x2,double y2){ double t1=(x1-x2)(x1-x2); double t2=(y1-y2)(y1-y2); return sqrt(t1+t2); } int main(){ double x1,y1,x2,y2,x3,y3,ans=0; cin>>x1>>y1>>x2>>y2>>x3>>y3; ans=ans+dist(x1,y1,x2,y2); ans=ans+dist(x1,y1,x3,y3); ans=ans+dist(x2,y2,x3,y3); printf("%.2lf",ans); return 0; }
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