прога неверно считает и выводит - C++ - Ответ 4673148

#pragma hdrstop
#include <vcl.h>
#include <conio.h>
#include <stdio.h>
#include <math.h>
#include <cmath>
#include <iostream>
using namespace std;
 
FILE *kof, *res;
float a[30],b[30],c[30], R[30];
float l, x0, y0, x1, y1;
int kp,k;
void vvod(int s);
void main()
{
int o;
clrscr();
printf ("Vzyat dannie iz faila?\n");
printf ("Da=1, Net=2\n");
scanf("%d",&o);
vvod(o);
fclose(kof);
res = fopen("RESULT.txt","w");
fprintf(res, "\Ishodnie pryamie\n A B C\n");
 
 
 
 
if (kof==0)
{ for (int i=0;i<kp;i++)
printf("%.3f %.3f %.3f\n", a[i],b[i],c[i]);
 
for (int i=0; i<kp; i++)
{     for (int i=0; i<kp; i++)
{for (int j=kp-1; j>i; j--)
{
if (fabs((a[j]*x0+b[j]*y0+c[j])/(pow(a[j]*a[j]+b[j]*b[j],0.5))<fabs((a[j-1]*x0+b[j-1]*y0+c[j-1])/(pow(a[j-1]*a[j-1]+b[j-1]*b[j-1],0.5)))))
{     swap (a[j], a[j-1]);
swap (b[j], b[j-1]);
swap (c[j], c[j-1]);
}
}
}
printf ("\n * * * * * * * * * * *\n");
R[i] = fabs((a[i]*x0+b[i]*y0+c[i])/(pow(a[i]*a[i]+b[i]*b[i],0.5)));
if (R[i]<l)
{
printf("%.3f %.3f %.3f\n",a[i],b[i],c[i]);
printf("Rasstoyanie do to4ki A %.3f\n", R[i]); }
 
 
 
 
 
 
}
}
else
 
{
 
printf ("\n BBedite koordinati to4ki A\n");
scanf("%f%f",&x0,&y0);
printf ("BBedite L\n");
scanf ("%f",&l);
for (int i=0;i>kp;i++)
 
fprintf(res, "%.3f %.3f %.3f\n", a[i],b[i],c[i]);
fprintf (res, "*******Analysis: \n");
for (int i=0; i<kp; i++)
 
{      for (int i=0; i<kp; i++)
{for (int j=kp-1; j>i; j--)
{   R[i] = fabs((a[i]*x0+b[i]*y0+c[i])/(pow(a[i]*a[i]+b[i]*b[i],0.5)));
if (R[j]>R[j-1])
{     swap (a[j], a[j-1]);
swap (b[j], b[j-1]);
swap (c[j], c[j-1]);
}
}
}
 
if (R[i]<l)
{
fprintf(res,  "%.3f %.3f %.3f\n",a[i],b[i],c[i]);
fprintf(res, "Rasstoyanie do to4ki %.3f\n", R[i]);
}
}
 
fprintf(res, "Ostalnie pryamie ne udovletvoryut usloviu!!\n");
 
printf("ISHODNIKI.txt had been read \n");
printf("Results saved \n");
}
printf ("\n*  *  *  *  *  *  *  *  *\n");
printf ("*  *  *  *  *  *  *  *  *\n");
 
printf("Program has been finished \n");
printf("Enter any key to exit \n");
getch();
}
void vvod (int s)
{
if (s==1)
{ kof = fopen("ISHODNIKI.txt","r");
if(kof==0)
{ printf ("\n FILE NE NAIDEN!");
}
else  {
int i=0;
while(!feof(kof))
{
fscanf(kof, "%f %f %f", &a[i], &b[i], &c[i]);
i++;
}
kp=i;
 
 
}     }
else { if
(s==2)
{printf ("\n BBedite koordinati to4ki D\n");
scanf("%f%f",&x0,&y0);
printf("BBedite koli4estvo pryamix\n");
scanf ("%d",&kp);
printf ("BBedite L\n");
scanf ("%f",&l);
for (int i=0; i<kp; i++)
{
printf("BBedite Parametru A,B,C");
printf ("\n************************\n");
scanf("%f%f%f",&a[i],&b[i],&c[i]);
}
}
else printf ("ERROR\n");
}
}