编译问题，大佬看看

None_g @ 2023-10-12 17:43:02

#include<bits/stdc++.h>
using namespace std;
int a,m,j,h,g;
double x1,y1,x2,y2,x3,y3;
double xy (double x1,double y1,double x2,double y2)
{
    return sqrt(pow(abs(x1-x2),2)+pow(abs(y1-y2),2));   
}
int main()
{
cin>>x1>>y1;
cin>>x2>>y2;
cin>>x3>>y3;
printf ("%2f", (xy (x1,y1,x2,y2)+xy (x3,y3,x2,y2)+xy (x1,y1,x3,y3)))

    return 0;
}

by yty2010 @ 2023-10-12 17:49:43

pringf 没有加分号

不能定义x1,y1(改c++11可以正常编译)

by chenyuchen_1 @ 2023-10-12 17:49:45

#include<bits/stdc++.h>
using namespace std;
int a,m,j,h,g;
double x1,y1,x2,y2,x3,y3;
double xy (double x1,double y1,double x2,double y2)
{
    return sqrt(pow(abs(x1-x2),2)+pow(abs(y1-y2),2));   
}
int main()
{
cin>>x1>>y1;
cin>>x2>>y2;
cin>>x3>>y3;
printf ("%2f", (xy (x1,y1,x2,y2)+xy (x3,y3,x2,y2)+xy (x1,y1,x3,y3)))//<<少了个分号

    return 0;
}

还有，下次这么点问题就别问了,自己调试

by yty2010 @ 2023-10-12 17:50:23

或者改变量名

by chenyuchen_1 @ 2023-10-12 17:54:00

搜寻y1函数 会很慢，请耐心等待

by None_g @ 2023-10-13 22:01:39

@chenyuchen_1改了，终于过样题了

#include<bits/stdc++.h>
using namespace std;
int m,j,h,g;
double x,y,a,b,c,d;
double xy (double x,double y,double z,double a)
{
    return sqrt(pow(abs(x-z),2)+pow(abs(y-a),2));   
}
int main()
{
cin>>x>>y;
cin>>a>>b;
cin>>c>>d;
printf ("%.2f", (xy (x,y,a,b)+xy (c,d,a,b)+xy (x,y,c,d)));

    return 0;
}

中间还有个问题，是 "%.2f"

，而不是"%2f"