#include<stdio.h>
#include<stdlib.h>

int main()
{
    float x, imin = 0, imax;
    const float eps = 1e-6;
    printf("Entrez le nombre : ");
    scanf("%f", &x);
    if (x < 1)
       imax = 1;
    else 
       imax = x;
    int i = 0;
    while (imax - imin >= eps) {
       printf("%f %f\n", imin, imax);
       float c = (imax + imin)/2;
       if (c*c > x)
          imax = c;
       else
           imin = c;      
    }
    printf("La racine carree est : %f", imin);
    
    return 0;
}