titik tengah

/*Titik Tengah*/
#include <stdio.h>
main()
{
        typedef struct {int x,y;} Titik;
Titik P1,P2,P3;
       int titik_tengah;

                     printf("x1: "); scanf("%d", &P1.x);
printf("y1: "); scanf("%d", &P1.y);
printf("x2: "); scanf("%d", &P2.x);
                     printf("y2: "); scanf("%d", &P2.y);
/* ("\ n \ n ===================================== ======= \ n ");
/* ("\ t \ triyono \ n \ http://triyonosiak.blogspot.com/           \ n");
/* ("\ n \ n ===================================== ======= \ n ");
                    P3.x = (P1.x+P2.x)*0.5;
P3.y = (P1.y+P2.y)*0.5;
                    printf("titik tengah antara P1 dan P2 adalah (%d,%d)",P3.x,P3.y);
}