#include <stdio.h>
#include <stdlib.h>
#include <math.h>
//dai5kai
struct zahyo{
double x;
double y;
};
int main(void) {
struct zahyo A,B,C;
scanf("%lf %lf",&A.
x,&A.
y); scanf("%lf %lf",&B.
x,&B.
y); scanf("%lf %lf",&C.
x,&C.
y); if(A.x<B.x){
}
else if(A.x>=B.x && A.x<=C.x){
double BC_x=C.x-B.x,BC_y=C.y-B.y;
double BA_x=A.x-B.x,BA_y=A.y-B.y;
double n=(BA_x*BC_x+BA_y*BC_y)/(BC_x*BC_x+BC_y*BC_y);
struct zahyo P;
P.x=B.x+n*BC_x;
P.y=B.y+n*BC_y;
}
else if(A.x>C.x){
}
return 0;
}
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