中点坐标

#include"stdio.h"

struct Student

{

int heng;

int zong;

}aaa[2];

int main()

{

for(int i=0;i<2;i++)

{

scanf("%d",&aaa[i].heng);

scanf("%d",&aaa[i].zong);

}

double heng1,zong1;

heng1=(aaa[0].heng+aaa[1].heng)/2.0;

zong1=(aaa[0].zong+aaa[1].zong)/2.0;

printf("%0.1f %0.1f\n",heng1,zong1);

return 0;

}