#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int   main()
{    
double alfa,rezult,B,x,y,m,shag;
printf("vvedite koordinatu po osi Y=\n");
scanf(" %f ", &y);

printf("vvedite shag pristrelki\n");
scanf("%f", &shag);  
printf("vvedite tocnosti pribligeniya\n");
scanf("%f", &alfa);

printf("vvedite tochku cherez kotoruy dolzgno proiti reshenie X=\n");
scanf(" %f", &x);


m=0;

m=m+shag;
rezult=x*x+m*x+1-y;
while((fabs(rezult)>alfa) || (m>2))
{
m=m+shag;
rezult=x*x+m*x+1-y;
}
if (m>2) printf("tocnosti ne dostignuta vvedite drugoi shag/n");


else

printf("m=%f\n",m);
system("pause");


return 0;
}

scanf(" %f ", &y);

x=1;
y=3;
alfa=0.0001;
shag=0.01;